JP2011030661A - System and method for radiographic imaging management and movable type radiographic imaging apparatus - Google Patents

Abstract

[PROBLEMS] To remotely manage battery deterioration status and usage frequency information of consumables, etc. from information on usage status of mobile radiography equipment, and to manage mobile radiography equipment remotely. To be able to.
A plan information creation unit that creates a shooting plan and a maintenance plan based on ordering information and the like, and information transmission that transmits ID information, ordering information, history information, and the like to an external central management unit together with an analysis request instruction Unit 256, an analysis result receiving unit 258 that receives the analysis result in the central management unit 14, a first feedback unit 260 that reflects the analysis result received when the mobile radiation imaging apparatus 22 is activated, in the imaging plan, and mobile radiation A second feedback unit 262 that reflects the analysis result received when an event occurs after activation of the imaging apparatus 22 in the imaging plan, and a third feedback unit that reflects the analysis result received when the mobile radiation imaging apparatus 22 ends in the maintenance plan H.264.
[Selection] Figure 11

Description

  The present invention provides at least one mobile radiography apparatus having a battery, a radiation source, and a radiation detection apparatus that detects radiation from the radiation source that has passed through a subject and converts the radiation into radiation image information, for example, remotely. The present invention relates to a radiation imaging management system, a radiation imaging management method, and a mobile radiation imaging apparatus that can be managed.

  2. Description of the Related Art In the medical field, a radiographic imaging apparatus that takes a radiation image by exposing a subject to radiation and guiding the radiation transmitted through the subject to a radiation conversion panel is widely used. In this case, the radiation conversion panel is a conventional radiation film in which a radiation image is exposed and recorded, or radiation energy as a radiation image is accumulated in a phosphor and irradiated with excitation light, and the radiation image is then emitted as a stimulating light. A storage phosphor panel that can be taken out as is known. These radiation conversion panels supply a radiation film on which a radiographic image is recorded to a developing device to perform development processing, or supply a stimulable phosphor panel to a reading device to perform reading processing so that a visible image can be obtained. A radiographic image is obtained.

  On the other hand, in an operating room or the like, it is necessary to be able to immediately read out and display a radiation image from a radiation conversion panel after imaging in order to perform a quick and accurate treatment on a patient. Radiation detection using a solid-state detector that converts radiation directly into electrical signals, or converts radiation into visible light with a scintillator and then converts it into electrical signals to read out as a radiation conversion panel that can meet such demands A vessel has been developed.

  By the way, in recent years, in medical settings, there has been an increasing demand for imaging of critically ill patients who are difficult to move from hospital rooms and emergency imaging in operating rooms. There is an increasing need for doctors to quickly and accurately check images taken with the camera.

  In order to meet such needs, mobile X-ray imaging apparatuses have been proposed.

  For example, in Patent Document 1, an operation for reading cassette information with the barcode reader 12 is performed, so that an output in which the cassette information and the subject information are accurately associated with each other is obtained, and the troublesome entry work from the imaging technician is performed. An example is disclosed in which the entry error is prevented and an entry error is prevented, and the troublesome work and the overlay display error caused by the superimposed display of the subject information on the X-ray photograph created from the exposed film cassette are eliminated.

  Patent Document 2 discloses a mobile X-ray apparatus having a carriage that allows the main body to travel and a flat detector that converts X-rays that have passed through the subject into image signals. By detachably configuring the mobile X-ray apparatus, one flat panel detector can be shared with a plurality of X-ray apparatus main bodies. Further, in paragraph [0049] of this Patent Document 2, as a log (history), “by using a general-purpose computer constituting the image processing unit 6, the travel distance, the number of images, the operating time of each X-ray apparatus, The management check of the battery charge / discharge information can be easily performed.In particular, by connecting the image processing unit 6 to a network such as a LAN, it is possible to grasp and manage the states of a plurality of X-ray apparatuses. There is a description.

  Patent Document 3 discloses a portable X-ray imaging system that transmits a current status of a battery to a central management device. In particular, it is described that a suitable schedule can be set in consideration of the remaining battery level (see paragraph [0011]).

  In Patent Document 4, in a radiographic image capturing apparatus that is driven by power supplied from a battery and whose number of captured images is controlled from an external device, the number of images that can be captured is calculated in advance when acquiring imaging information from an RIS terminal. There has been disclosed a radiographic imaging apparatus that reliably performs imaging related to imaging information acquired from an RIS terminal by acquiring only possible imaging information from the RIS terminal.

  Patent Document 5 discloses a remote maintenance system that is not a mobile radiography apparatus, but is related to the consumables related to the mechanism of an X-ray imaging apparatus, and detects the number of times of use of machine parts such as radiation tubes and troubles in the machine control system. A system is described in which a log (history) is collected and notified to a remote place by, for example, a PHS provided in an X-ray imaging apparatus.

Japanese Patent Laid-Open No. 2003-210446 JP 2007-535 A JP 2008-173470 A Japanese Patent Laid-Open No. 2005-6888 JP 2001-87256 A

  By the way, in the X-ray imaging apparatus for round visits as shown in Patent Document 1, in recent years, X-ray exposure, carriage movement, and the like are performed using a battery. Patent Documents 2 and 3 introduce a method for taking a history of a battery or a carriage.

  However, the place where the battery can be charged is limited in the hospital. For example, if the battery is used up while taking a picture or moving on the carriage (electric), the carriage must be moved to a place where the battery can be charged. There was a problem that it took time to do the work. Therefore, in Patent Documents 3 and 4, the above-described problem is solved by managing and scheduling the remaining amount of battery. However, when re-shooting is performed in actual shooting, it is urgently required. There is a new problem that it is impossible to cope with a situation where power is consumed.

  On the other hand, the usage status of X-ray equipment (radiation source, etc.) and related consumables (total number of exposures, mAs value, etc.) is collected at the time of radiographing, or X-ray equipment malfunction / trouble is detected. A system for notifying outside (out-of-hospital etc.) as a log is described in Patent Document 5. However, this patent document 5 does not relate to a mobile radiation imaging apparatus. Moreover, in patent document 1, in a mobile radiography apparatus, the log of the usage condition of each apparatus and a battery can also be collected and managed with a computer. However, there is currently no system for managing the mobile radiography apparatus by remotely managing information on the equipment deterioration and the usage frequency of consumables collected in the mobile radiography apparatus.

  That is, conventionally, it has been impossible to predict and draft a shooting plan and a maintenance plan by comprehensively processing past shooting history and engineer information.

  The present invention has been made in consideration of such problems, and manages information on the deterioration status of batteries and the frequency of use of consumables at a remote location from information on at least the usage history of the mobile radiography apparatus. It is another object of the present invention to provide a radiography management system and a radiography management method capable of managing a mobile radiography apparatus remotely.

  Another object of the present invention is to display an analysis result based on at least information on the usage history of the mobile radiography apparatus in a radiographing plan or a maintenance plan, thereby displaying an optimal radiographing plan in real time. It is another object of the present invention to provide a mobile radiography apparatus that can recognize the timing of inspection and replacement of consumables in the future in real time.

[1] At least one mobile radiography including a battery according to the first aspect of the present invention, a radiation source, and a radiation detection device that detects radiation from the radiation source that has passed through the subject and converts the radiation into radiation image information. An apparatus, means for setting an imaging plan for performing radiography with the mobile radiography apparatus based on the supplied imaging conditions, and information reading means for reading at least use history information of the mobile radiography apparatus And feedback means for reflecting at least the result of the analysis on the battery based on the read information on the usage history to the imaging plan. Here, the information related to the usage history refers to information related to usage conditions such as travel distance, number of exposures, battery capacity, etc., which change in real time every time the mobile radiography apparatus is used, and information obtained by accumulating such information. .

[2] In the first aspect of the present invention, a part of the feedback unit is installed at a position away from the mobile radiography apparatus, and an analysis result from the part is transmitted to the mobile radiography apparatus by communication. And reflected in the shooting plan.

[3] In the first aspect of the present invention, the information reading unit reads the information at least when an event occurs.

[4] In the first aspect of the present invention, the analysis by the feedback means is performed according to the addition of the imaging condition.

[5] In the first aspect of the present invention, the analysis by the feedback means is performed based on information on an engineer who operates the mobile radiography apparatus.

[6] In the first aspect of the present invention, the analysis by the feedback means is performed based on information on the subject imaged by the mobile radiography apparatus.

[7] In the first aspect of the present invention, the analysis by the feedback means is performed based on information relating to a use history of the mobile radiation imaging apparatus.

[8] In the first aspect of the present invention, the analysis by the feedback means is performed based on a usage history of the battery.

[9] In the first aspect of the present invention, the imaging plan includes creation of a moving route including an activation point of the mobile radiation imaging apparatus and a point of a subject imaged by the mobile radiation imaging apparatus, Reflecting the analysis result on the shooting plan by the feedback means includes a change of the moving route.

[10] Further, a means for setting a maintenance plan for the mobile radiation imaging apparatus, and a result of analysis regarding maintenance of the mobile radiation imaging apparatus based on at least the read information regarding the use history is reflected in the maintenance plan. Means.

[11] In the first aspect of the present invention, the maintenance plan includes at least one of an inspection time and a replacement time of parts constituting the mobile radiography apparatus.

[12] In the first aspect of the present invention, the analysis by the feedback means is performed based on information relating to a use history of the mobile radiation imaging apparatus.

[13] A radiography management method according to the second aspect of the present invention includes at least a battery, a radiation source, and a radiation detection device that detects radiation from the radiation source that has passed through the subject and converts the radiation into radiation image information. In the radiation imaging management method for managing one mobile radiography apparatus, a step of setting an imaging plan for performing radiography with the mobile radiography apparatus based on the supplied imaging conditions; and the mobile radiation The method includes reading at least information related to the usage history of the imaging apparatus, and reflecting at least a result analyzed on the battery based on at least the read information related to the usage history in the imaging plan.

[14] A mobile radiation imaging apparatus according to a third aspect of the present invention includes a battery, a radiation source, and a radiation detection apparatus that detects radiation from the radiation source that has passed through a subject and converts the radiation into radiation image information. In at least one mobile radiation imaging apparatus, means for displaying an imaging plan for performing radiation imaging, means for outputting at least information about usage history to the outside at least when an event occurs, and externally based on information about the usage history And means for receiving at least the result of analysis with respect to the battery and means for reflecting the received result of analysis in the photographing plan.

[15] In the third aspect of the present invention, means for displaying a maintenance plan, means for receiving an analysis result regarding maintenance based on information about the usage history externally, and a result of analyzing the received maintenance result as described above And means for reflecting in the maintenance plan.

  As described above, according to the radiation imaging management system and the radiation imaging management method according to the present invention, the information on the deterioration status of the battery and the usage frequency of the consumables is remotely obtained from the information on at least the usage history of the mobile radiography apparatus. In addition, the mobile radiography apparatus can be managed remotely.

  In addition, according to the mobile radiography apparatus according to the present invention, the result of analysis based on at least information on the use history of the mobile radiography apparatus is reflected and displayed in the radiographing plan and the maintenance plan, so that the optimal radiography is performed. The plan can be recognized by the engineer in real time, and the engineer can be informed in real time of the inspection and replacement time of consumables in the future.

  That is, according to the radiation imaging management system, the radiation imaging management method, and the mobile radiography apparatus according to the present invention, various information is collected from a large number of facilities and statistically processed, so that the accuracy is higher (for example, the battery It is possible to devise a shooting plan that is less likely to be cut off and is less frequently interrupted for charging. In addition, from the same information, it is possible to predict the parts replacement time with high accuracy (for example, as long as possible within a range that does not affect imaging) for the maintenance plan.

It is a block diagram which shows the radiography management system which concerns on this Embodiment. It is a block diagram which shows an example of the system in one medical institution. It is explanatory drawing which shows the state which is using the 1st movement type radiography apparatus. It is a functional block diagram which shows the structure of the console of a 1st movement type radiography apparatus. It is explanatory drawing which shows the internal structure of an electronic cassette. It is a functional block diagram which shows the structure of the transmission / reception terminal of an electronic cassette. It is a functional block diagram which shows the structure of the radiation detector accommodated in an electronic cassette, and a cassette control apparatus. It is explanatory drawing which shows the state which is using the 2nd movement type radiography apparatus. It is a functional block diagram which shows the structure of the console of a 2nd movement type radiography apparatus. It is a block diagram which shows an image reading apparatus. It is a functional block diagram which shows the principal part structure of a console control part. It is a functional block diagram which shows the principal part structure of a central management part. It is a flowchart which shows the selection process of the mobile radiography apparatus which should be used. It is the flowchart (the 1) which shows the process which recreates the optimal imaging plan, performing a radiography using the activated mobile radiography apparatus, and the process which updates a maintenance plan. It is the flowchart (the 2) which shows the process which recreates the optimal imaging plan, performing the radiography, and the process which updates a maintenance plan using the activated mobile radiography apparatus. It is a flowchart which shows the process in a 1st feedback part. It is a flowchart which shows the process in the 2nd feedback part at the time of 1st event generation | occurrence | production. It is a flowchart which shows the process in the 2nd feedback part at the time of 2nd event generation | occurrence | production. It is a flowchart which shows the process in the 2nd feedback part at the time of 3rd event occurrence. It is another block diagram of an electronic cassette. It is another block diagram of the cradle which charges an electronic cassette.

  Embodiments of a radiation imaging management system, a radiation imaging management method, and a mobile radiation imaging apparatus according to the present invention will be described below with reference to FIGS.

  As shown in FIG. 1, the radiation imaging management system 10 according to the present embodiment includes at least one medical institution 12 (including a clinic, a hospital, and a clinic where doctors, dentists, etc. perform medical practices). The external central management unit 14 is connected to the public line network 16.

  In each medical institution 12, as shown in FIG. 2, two communication networks of a LAN (medical institution communication network) 18 used as an intranet and a mobile communication network 20 connected to the public line network 16 are installed. ing. The LAN 18 and the mobile communication network 20 are connected to each other so that data communication is possible.

  Each medical institution 12 includes at least one mobile radiation imaging apparatus 22 according to the present embodiment. The mobile radiography apparatus 22 includes a medical room 12, a passage 26, an examination room 28 (medical department), an operating room 30, a management room 32, and an imaging room 34 (an X-ray room, It is configured to be movable in the radiography room. FIG. 2 shows an example in which the hospital room 24, the examination room 28, the operating room 30, the management room 32, and the imaging room 34 are drawn on one floor because of the limitations of the drawing. Then, there may be cases where the buildings such as the ward room 24 and the management room 32 are different, or the floors are different, such as a ward and a management ward.

  The LAN 18 is connected to a console 36 (including a computer) which is a control device of a hospital room 24, an examination room 28, an operating room 30, and an imaging room 34 in which a fixed radiation imaging apparatus (not shown) is accommodated, and a management room. The server 38 is connected to the server 38. The server 38 comprehensively manages, for example, radiographic image information and other information handled in the radiology department in the medical institution 12.

  A plurality of base stations 40 are connected to the mobile communication network 20, and each base station 40 is arranged in the hospital so that a part of the communication range 42 of the adjacent base station 40 overlaps.

  However, the communication range 42 of the base station 40 is arranged and configured not to extend into the hospital room 24, the examination room 28, the operating room 30, or the imaging room 34. The communication range 42 is arranged and configured in the management room 32 and on the passage 26.

  In other words, in this medical institution 12, the personal information (name, age, medical condition, etc.) of the subject is recorded in the server 38, and the name, imaging region, and imaging of the subject to be radiographed using the mobile radiography apparatus 22. When a doctor or a technician selects and inputs a procedure or the like on a central computer (not shown) connected to the server 38, the information is transferred to the console 52 (see FIGS. 3 and 8) of the mobile radiation imaging apparatus 22. The central computer connected to the server 38 can receive history information and the like collected by the console 52 of the mobile radiation imaging apparatus 22. Furthermore, since the central computer is communicably connected to the external central management unit 14, it is also possible to transmit the above-described history information, personal information of the subject, photographing history information, and the like.

  FIG. 3 shows an explanatory diagram of a state in which the mobile radiography apparatus 22 is used in the hospital room 24 as an example. The mobile radiography apparatus 22 is placed in, for example, the management room 32 where the battery can be easily charged or replaced when not in use. It can be moved into the hospital room 24 or the like.

  There are two types of mobile radiography apparatus 22 (first mobile radiography apparatus 22A and second mobile radiography apparatus 22B). The first mobile radiography apparatus 22A includes a radiation detector 46 including a solid state detection element that directly converts radiation into an electrical signal, or converts radiation into visible light with a scintillator and then converts it into an electrical signal and reads it. The second mobile radiography apparatus 22B accumulates radiation energy as a radiation image on the phosphor and irradiates the excitation light to extract the radiation image as stimulated emission light (see FIG. 3). This is an apparatus using a storage phosphor panel 48 that can be used (see FIG. 8). In the following description, the first mobile radiography apparatus 22A and the second mobile radiography apparatus 22B are collectively referred to as the mobile radiography apparatus 22.

  As shown in FIG. 3, the first mobile radiation imaging apparatus 22 </ b> A includes a carriage 44 on which a moving mechanism 50, a console 52, a radiation source control device 54, a cradle 56, and a battery 58 are mounted.

  The moving mechanism 50 includes a wheel 60 installed below the carriage 44, a drive motor (not shown), a belt and a speed reducer that transmit the rotational force of the drive motor to the wheel. The console 52 includes an input device (keyboard and coordinate input device) (not shown) for inputting imaging information for imaging radiation image information, input data and imaging conditions (imaging menu), an imaging plan, and a maintenance plan, which will be described later. A display 62 for displaying is provided. The radiation source control device 54 controls the radiation source 64 according to the imaging information supplied from the console 52 and irradiates the subject 66 (patient) with the radiation X. The cradle 56 is equipped with a cassette (hereinafter referred to as an electronic cassette 68) having a built-in radiation detector 46 in which radiation image information is recorded by being irradiated with the radiation X that has passed through the subject 66. The battery 58 supplies power to the drive motor, the console 52, the radiation source 64, and the radiation source control device 54, and also supplies power to the electronic cassette 68 through the cradle 56.

  The radiation source 64 is connected to the radiation source control device 54 via the arm member 70. The radiation source 64 is further provided with an electric lamp 71 for displaying an imaging region. The battery 58 is connected to a charger 72 so that the battery 58 can be charged as necessary. The battery 58 is generally a lead-acid battery. In this case, the battery 58 is charged in the management room 32 because it takes time. Therefore, when the mobile radiography apparatus 22 is used, it starts from the management room 32 and passes through one or more rooms (patient room 24, examination room 28, operating room 30, imaging room 34, etc.) according to the imaging plan. Then, the route (movement route) of returning to the management room 32 again for charging is followed. It should be noted that the carriage 44 has a speed sensor 74 for detecting whether or not the carriage 44 is moving, a position sensor 76 such as a GPS device, and the carriage 44 contacts a wall, a desk, a bed, etc. (including collisions, etc.) The contact sensor 78 (limiter switch) for detecting whether or not is mounted is mounted.

  FIG. 4 is a functional block diagram of the console 52 of the first mobile radiation imaging apparatus 22A. The console 52 includes a console control device 80, a transmission / reception unit 82, an imaging switch 84, an ordering management unit 86 that manages ordering information for imaging, and ID information for specifying the mobile radiation imaging apparatus 22. And an ID memory 88 for storing.

  The console control device 80 is attached to the cradle 56 through the connector 90 provided on the cradle 56, and receives power from the battery 58 through the connector 92 on the electronic cassette 68 side with respect to the electronic cassette 68 electrically connected to the connector 90. At the same time, the electronic cassette 68 communicates with the cassette controller 94 (see FIG. 7). The console controller 80 is connected to the speed sensor 74, the position sensor 76, and the contact sensor 78 described above.

  The console control device 80 can send and receive signals to / from the external central management unit 14 and the server 38 in the management room 32 through the transmission / reception unit 82 and the mobile communication network 20.

  Information (name and ID) of the engineer can be input to the console 52 via the input device, and the engineer can select and register his / her name when starting a round-trip. The engineer's information may be registered by, for example, a bar code reader provided in the console 52 if the engineer carries an ID card with a bar code, for example.

  FIG. 5 is an internal configuration diagram of the electronic cassette 68 used in the first mobile radiation imaging apparatus 22A. The electronic cassette 68 includes a casing 100 made of a material that transmits the radiation X. Inside the casing 100, the grid 104 for removing scattered radiation of the radiation X by the subject 66 and the radiation X transmitted through the subject 66 are detected from the irradiation surface 102 side of the casing 100 irradiated with the radiation X. A radiation detector 46 and a lead plate 105 that absorbs backscattered rays of radiation X are arranged in this order. Note that the irradiation surface 102 of the casing 100 may be configured as a grid 104.

  Further, inside the casing 100, a battery 106 that is a power source of the electronic cassette 68, a cassette control device 94 that drives and controls the radiation detector 46 by the electric power supplied from the battery 106, and the radiation detector 46 detect it. A transmission / reception terminal 108 that transmits and receives a signal including the information of the radiation X to and from the server 38 in the management room 32 through the mobile communication network 20 is accommodated. A connector 92 is attached to the cassette control device 94, and the battery 106 of the electronic cassette 68 and the battery 114 (see FIG. 6) of the transmission / reception terminal 108 are respectively connected to the cradle from the battery 58 of the first mobile radiography apparatus 22A. Charging is performed through 56 connectors 90 (see FIG. 4), a connector 92 of the electronic cassette 68, and a cassette control device 94. Further, as described above, the cassette control device 94 and the console control device 80 communicate with each other through the connector 92 and the connector 90.

  The cassette control device 94 is preferably provided with a lead plate or the like on the irradiation surface 102 side of the casing 100 in order to avoid damage due to irradiation with the radiation X.

  FIG. 6 is a functional block diagram of the transmission / reception terminal 108 arranged in the electronic cassette 68. As the transmission / reception terminal 108, a PHS terminal which is an existing portable terminal can also be used.

  The transmission / reception terminal 108 includes a terminal control unit 112 having a microcomputer (including a CPU and a memory 110 which is a nonvolatile storage unit such as a flash memory) and a battery 114.

  The terminal control unit 112 is connected to an operation unit 116 having operation switches and a display unit 118 including a liquid crystal display. Note that the transmission / reception terminal 108 is preferably arranged on the electronic cassette 68 with the display unit 118 visible from the outside.

  The terminal control unit 112 also receives a radio wave (RF signal) received by the antenna 120 via the antenna duplexer 122, converts it to an intermediate frequency signal, demodulates it, and receives it as received data to the terminal control unit 112. An output receiving unit 124 is connected. In this case, the terminal control unit 112 monitors the signal from the reception unit 124 at a constant cycle, and when reception data is transmitted, the terminal control unit 112 causes the reception unit 124 to receive and displays the content on the display unit 118.

  Further, the terminal control unit 112 modulates data (radiation image information or the like) read from the image memory 126 (see FIG. 7), converts the intermediate frequency signal into an RF signal, and uses this as a radio wave as an antenna duplexer. A transmission unit 128 that radiates from the antenna 120 is connected via the line 122.

  Furthermore, a frequency synthesizer 130 that outputs a local oscillation frequency of the mixer circuit of the reception unit 124 and the transmission unit 128 is connected to the terminal control unit 112.

  FIG. 7 is a functional block diagram of the radiation detector 46 and the cassette controller 94 accommodated in the electronic cassette 68. The radiation detector 46 has a photoelectric conversion layer 132 made of a substance such as amorphous selenium (a-Se) that senses the radiation X and generates electric charges on a matrix of thin film transistors (TFTs) 134. After the generated charge is stored in the storage capacitor 136, the TFT 134 is sequentially turned on for each row, and the charge is read as an image signal. In FIG. 7, only the connection relationship between one pixel 138 including the photoelectric conversion layer 132 and the storage capacitor 136 and one TFT 134 is shown, and the configuration of the other pixels 138 is omitted. Amorphous selenium must be used within a predetermined temperature range because its structure changes and its function decreases at high temperatures. Therefore, it is preferable to provide means for cooling the radiation detector 46 in the electronic cassette 68.

  A gate line 140 extending in parallel to the row direction and a signal line 142 extending in parallel to the column direction are connected to the TFT 134 connected to each pixel 138. Each gate line 140 is connected to a line scan driving unit 144, and each signal line 142 is connected to a multiplexer 146 constituting a reading circuit.

  Control signals Von and Voff for controlling on / off of the TFTs 134 arranged in the row direction are supplied from the line scan driving unit 144 to the gate line 140. In this case, the line scan driving unit 144 includes a plurality of switches SW1 that switches the gate lines 140, and an address decoder 148 that outputs a selection signal for selecting one of the switches SW1. An address signal is supplied from the cassette control device 94 to the address decoder 148.

  In addition, the charge held in the storage capacitor 136 of each pixel 138 flows out to the signal line 142 through the TFTs 134 arranged in the column direction. This charge is amplified by the amplifier 150. A multiplexer 146 is connected to the amplifier 150 via a sample and hold circuit 152. The multiplexer 146 includes a plurality of switches SW2 that switches the signal line 142, and an address decoder 154 that outputs a selection signal for selecting one of the switches SW2. An address signal is supplied to the address decoder 154 from the cassette control device 94. An A / D converter 156 is connected to the multiplexer 146, and radiation image information converted into a digital signal by the A / D converter 156 is supplied to the cassette control device 94.

  The cassette control device 94 is detected by the radiation detector 46 and an address signal generator 158 that supplies an address signal to the address decoder 148 of the line scan driver 144 and the address decoder 154 of the multiplexer 146 that constitute the radiation detector 46. An image memory 126 for storing the radiographic image information, a cassette ID memory 160 for storing the cassette ID information for specifying the electronic cassette 68, and an interface 162.

  The interface 162 receives the transmission request signal of the radiation image information through the transmission / reception terminal 108, while transmitting the cassette ID information stored in the cassette ID memory 160 and the radiation image information stored in the image memory 126 through the transmission / reception terminal 108.

  On the other hand, as shown in FIG. 8, the second mobile radiography apparatus 22B has substantially the same configuration as the first mobile radiography apparatus 22A described above, but an image reading apparatus 170 is installed instead of the cradle 56. Is different. In this case, as shown in FIG. 9, the console control device 80 is attached to the image reading device 170 through a connector 172 provided in the image reading device 170, and supplies power from the battery 58 to the image reading device 170. It communicates with the image reading device 170.

  As shown in FIG. 9, the image reading apparatus 170 includes a reading unit 174 that reads radiation energy stored in the stimulable phosphor panel 48 by radiation imaging as radiation image information by irradiating excitation light, An image memory 176 that stores radiation image information read by the reading unit 174; an image processing unit 178 that performs image processing (including correction processing) on the radiation image information stored in the image memory 176; A reader ID memory 180 for storing reader ID information for specifying the image reader 170, an interface 182, and a signal including at least radiation image information are transmitted to the server 38 in the management room 32 through the mobile communication network 20. A transmission / reception terminal 184.

  In addition, as shown in FIG. 10, in the image reading apparatus 170, a cassette loading unit 188 is disposed on the upper portion of the casing 186. A loading port 190 formed in the cassette loading unit 188 is loaded with a cassette 192 that houses a stimulable phosphor panel 48 in which radiation image information is accumulated and recorded. In the vicinity of the loading port 190, the barcode reader 194 for reading the identification information of the barcode disposed on the cassette 192, the unlocking mechanism 198 for unlocking the lid member 196 of the cassette 192, and the lid member 196 are opened. An adsorption board 200 that adsorbs and takes out the stimulable phosphor panel 48 from the covered cassette 192 and a nip roller 202 that sandwiches and conveys the stimulable phosphor panel 48 taken out by the adsorption board 200 are disposed.

  A plurality of conveyance rollers 204a to 204g and a plurality of guide plates 206a to 206f are arranged in series with the nip roller 202, and a curved conveyance path 208 is configured by these. The curved conveyance path 208 extends downward from the cassette loading unit 188, then becomes substantially horizontal at the bottom, and then extends substantially vertically upward. As a result, the size of the image reading apparatus 170 is reduced.

  Between the nip roller 202 and the conveyance roller 204a, an erasing unit 210 for erasing radiation image information remaining on the stimulable phosphor panel 48 that has been read is disposed. The erasing unit 210 has an erasing light source 212 such as a cold cathode tube that outputs erasing light.

  A platen roller 214 is disposed between the transport rollers 204d and 204e disposed at the lowermost portion of the curved transport path 208. A scanning unit 216 that reads radiation image information accumulated and recorded on the stimulable phosphor panel 48 is disposed above the platen roller 214.

  The scanning unit 216 derives a laser beam LB that is excitation light and scans the stimulable phosphor panel 48, and stimulated emission light related to radiation image information that is excited and output by the laser beam LB. A reading unit 174 for reading.

  The excitation unit 218 reflects the laser beam 220, a laser oscillator 220 that outputs the laser beam LB, a polygon mirror 222 that is a rotating polygon mirror that deflects the laser beam LB in the main scanning direction of the stimulable phosphor panel 48, and the laser beam LB. And a reflecting mirror 224 that leads to the stimulable phosphor panel 48 that passes over the platen roller 214.

  The reading unit 174 is connected at one end to the condensing phosphor panel 48 on the platen roller 214 and close to the stimulable phosphor panel 48, and the other end of the condensing guide 226. A photomultiplier 228 for converting the stimulated emission light obtained from the above into an electrical signal. A condensing mirror 230 for increasing the condensing efficiency of the photostimulated luminescent light is disposed adjacent to one end of the condensing guide 226. The radiation image information read by the photomultiplier 228 is subjected to image processing (including correction processing) in an image processing unit installed in the image reading device 170. As shown in FIG. 9, the radiation image information from the reading unit 174 is stored in the image memory 176, and further subjected to image processing by the image processing unit 178, together with the reading device ID information, through the transmission / reception terminal 184 and the mobile communication network 20. 32 is transmitted to the server 38 in the network.

  Here, the operation in the case of performing radiography using the mobile radiography apparatus 22 will be described.

  The mobile radiography apparatus 22 is used, for example, when it is necessary to take a radiographic image of the subject 66 during a round-trip of the hospital room 24 by a doctor. Therefore, the subject information of the subject 66 who is the subject of imaging is registered in advance in the ordering management unit 86 (see FIGS. 4 and 8) of the console 52 before imaging. Further, even when the imaging region and the imaging method are determined in advance, these imaging conditions are registered in the ordering management unit 86 in advance. In the state where the above preparatory work is completed, radiography for the subject 66 is performed.

  For example, when a radiographic image is captured using the first mobile radiography apparatus 22A, a doctor or a radiographer (engineer) in charge of the radiation surface is placed at a predetermined position facing the radiation source 64 with the subject 66 in between. The electronic cassette 68 is installed in a state where 102 (see FIG. 5) is the radiation source 64 side. Next, the photographing switch 84 is operated to perform photographing. The same applies to the second mobile radiation imaging apparatus 22B.

  The radiation source control device 54 acquires the imaging conditions related to the imaging region of the subject 66 from the ordering management unit 86 of the console 52 through the console control device 80, and controls the radiation source 64 according to the acquired imaging conditions. The subject 66 is irradiated with radiation X having a predetermined dose.

  In the first mobile radiography apparatus 22 </ b> A, the radiation X transmitted through the subject 66 is applied to the radiation detector 46 after the scattered radiation is removed by the grid 104 of the electronic cassette 68, and the radiation detector 46. Is converted into an electrical signal by the photoelectric conversion layer 132 of each pixel 138 and is stored as a charge in the storage capacitor 136 (see FIG. 7). Next, the charge information, which is the radiation image information of the subject 66 held in each storage capacitor 136, is supplied to the line scan driving unit 144 and the multiplexer 146 from the address signal generating unit 158 constituting the cassette control device 94. Read according to the signal.

  That is, the address decoder 148 of the line scan driver 144 outputs a selection signal according to the address signal supplied from the address signal generator 158 to select one of the switches SW1, and the TFT 134 connected to the corresponding gate line 140. A control signal Von is supplied to the gates of the two. On the other hand, the address decoder 154 of the multiplexer 146 outputs a selection signal in accordance with the address signal supplied from the address signal generation unit 158, sequentially switches the switch SW2, and is connected to the gate line 140 selected by the line scan driving unit 144. Radiation image information, which is charge information held in the storage capacitor 136 of each pixel 138, is sequentially read out via the signal line 142.

  The radiation image information read from the storage capacitor 136 of each pixel 138 connected to the selected gate line 140 of the radiation detector 46 is amplified by each amplifier 150 and then sample-held by each sample-hold circuit 152. The signal is supplied to the A / D converter 156 via the multiplexer 146 and converted into a digital signal.

  The radiation image information converted into the digital signal is temporarily stored in the image memory 126 of the cassette control device 94.

  Similarly, the address decoder 148 of the line scan driver 144 sequentially switches the switch SW 1 according to the address signal supplied from the address signal generator 158, and the storage capacitor 136 of each pixel 138 connected to each gate line 140. The stored radiation image information, which is charge information, is read out via the signal line 142 and stored in the image memory 126 of the cassette controller 94 via the multiplexer 146 and the A / D converter 156.

  The electronic cassette 68 after radiation imaging is mounted on the cradle 56 of the first mobile radiation imaging apparatus 22A.

  At this time, when the connector 90 of the cradle and the connector 92 of the electronic cassette are connected to each other, the console control device 80 transmits the subject information of the subject 66 registered in the ordering management unit 86 to the connector 90 and the connector 92. To the interface 162 (see FIG. 7) of the electronic cassette 68. The interface 162 associates the radiation image information stored in the image memory 126 with the subject information, and stores the associated radiation image information in the image memory 126.

  Thereafter, the interface 162 permits the transfer of the radiation image information to the mobile communication network 20 through the transmission / reception terminal 108, but since the hospital room 24 is not within the communication range 42, The transmission process of the radiation image information is not performed.

  When the first mobile radiography apparatus 22A exits the room 24 and the electronic cassette 68 (the transmission / reception terminal 108) enters the communication range 42 of the corresponding base station 40 of the mobile communication network 20, in other words, the transmission / reception terminal When 108 receives a predetermined radio field intensity of the corresponding base station 40, it notifies the interface 162 (cassette control device 94) to that effect.

  As a result, the interface 162 reads the radiation image information from the image memory 126 and transfers it to the terminal control unit 112 (see FIG. 6) of the transmission / reception terminal 108. The terminal control unit 112 transmits the radiation image information transferred from the image memory 126 through the interface 162 to the corresponding base station 40 having the communication range 42 through the transmission unit 128, the antenna duplexer 122, and the antenna 120. The corresponding base station 40 transfers the received radiation image information to the server 38 of the management room 32 through the mobile communication network 20 and the LAN 18.

  On the other hand, in the second mobile radiography apparatus 22B, the cassette 192 after radiography is mounted on the image reading apparatus 170 of the second mobile radiography apparatus 22B and stored in the stimulable phosphor panel 48 in the cassette 192. The radiographic image information thus read is read and stored in the image memory 176 (see FIG. 9). Also in this case, the radiation image information and the subject information are associated with each other and transferred to the server 38 of the management room 32 through the transmission / reception terminal 184, the base station 40, the mobile communication network 20, and the LAN 18.

  The radiographic image information transferred to the server 38 in the management room 32 can be immediately provided to the use of a diagnosis or the like through the LAN 18 by, for example, a doctor using the console 36 in the examination room 28.

  As shown in FIG. 2, for example, when the mobile radiography apparatus 22 moves on the passage 26 from the hospital room 24 to the examination room 28 or the next hospital room 24 (not shown), communication between adjacent base stations 40 and 40 is performed. Since the ranges 42 and 42 are configured to overlap, it is possible to move to the communication range 42 having the higher radio wave intensity in order, so that the radiographic image information can be transmitted to the server without interruption during the movement of the passage 26. 38. Therefore, when radiographic image information is captured in the next hospital room 24, it can be overwritten and stored in the image memory 126 of the same electronic cassette 68 and the image memory 176 of the image reading device 170. As a result, the capacity of the image memory 126 of the electronic cassette 68 and the image memory 176 of the image reading device 170 can be set to a memory capacity capable of recording one piece of radiation image information.

  That is, even when the storage capacity of the image memory 126 mounted on the electronic cassette 68 and the image memory 176 of the image reading device 170 is small (for one radiograph), each radiation image of the subject 66 in the plurality of patient rooms 24 is obtained. Information can be transmitted to the server 38, which is a radiation image collection facility, without delay.

  In addition to determining whether or not the electronic cassette 68 or the image reading device 170 exists in the patient room 24, that is, whether or not the patient has left the patient room 24, the communication range 42 determines, for example, the electronic cassette 68 or the image reading device. It is also possible to configure an exit detection mechanism by attaching an RFID card to 170 and attaching the RFID card reader near the door of the hospital room 24. When the radio wave of the RFID card of the electronic cassette 68 or the image reading device 170 is detected by the reading device, it can be determined that it is moving.

  Further, whether or not the electronic cassette 68 or the image reading device 170 is moving is determined when the electronic cassette 68 is connected to the console 52 through the cradle 56 or when the cassette 68 is loaded in the image reading device 170. When the console control device 80 determines that the mobile radiography device 22 is moving through the speed sensor 74 and / or the position sensor 76, the electronic cassette 68 and the image reading device 170 are moving. You may make it judge.

  In addition to the various means described above, the console control device 80 of the mobile radiation imaging apparatus 22 has history information (log) such as a use history and a maintenance history of the mobile radiation imaging apparatus 22 as shown in FIG. A log memory 250 that stores information, a plan information memory 252 that stores a set or changed shooting plan or maintenance plan, a plan information creation unit 254 that creates a shooting plan and a maintenance plan based on ordering information, etc., and ID information An information transmission unit 256 for transmitting ordering information, history information, etc. to an external central management unit 14 together with an analysis request instruction, and an analysis result in the central management unit 14 (analyzing at least a battery based on ordering information, history information, etc.) Analysis result receiving unit 258 that receives the result (including the result) and the analysis result received when the mobile radiography apparatus 22 is activated. The first feedback unit 260 to be reflected in the shadow plan, the second feedback unit 262 to reflect the analysis result received at the occurrence of an event after the activation of the mobile radiation imaging apparatus 22 in the imaging plan, and the end of the mobile radiation imaging apparatus 22 A third feedback unit 264 that reflects the analysis result received at times in the maintenance plan, a capacity update prediction unit 266 that updates and predicts the battery capacity each time an event occurs, and a mobile type that should be used based on the received analysis result And a guidance unit 268 for selecting and instructing the radiation imaging apparatus 22. When an event occurs, for example, when an engineer moves the mobile radiography apparatus 22 to one hospital room 24 and prepares for radiography for one subject 66, for one subject 66. There are a time when radiography is completed, a time when a new imaging menu is added (including addition of a subject), and the like. The guidance unit 268 is installed when two or more mobile radiation imaging apparatuses 22 exist in one medical institution 12. The guidance unit 268 may be installed in a central computer connected to the server 38 in the management room 32. In this case, if the ID information of the mobile radiation imaging apparatus 22 scheduled to be used is installed together with the ID transmission unit that transmits to the central management unit 14, the mobile radiation imaging apparatus 22 should be used in advance without starting the mobile radiation imaging apparatus 22. The radiation imaging apparatus 22 can be known.

  The ordering information includes an imaging menu necessary for imaging by the radiation source 64, engineer information regarding an engineer operating the mobile radiation imaging apparatus 22, and subject information regarding the subject 66 (patient).

  The imaging menu is a condition for determining a tube voltage, a tube current, an irradiation time, and the like for irradiating the imaging region of the subject 66 with the radiation X having an appropriate dose. Conditions such as a photographing method can be given. Furthermore, in this embodiment, priority can be set. The engineer information includes the skill level of the engineer. The skill level includes the frequency of re-shooting (re-shooting rate) and the years of experience. The subject information includes personal information, ward information, past re-photographing information, and the like. The personal information includes the age, medical history, physique, body fat percentage, gender, etc. of the subject 66, and the ward information includes the location of the hospital room 24 where the subject is located. This is information on how many times re-photographing has been performed.

  The usage history of the mobile radiography apparatus 22 includes the number of times of use of the battery 58 (number of times of charging), the number of times of use of the radiation source 64 (number of exposure), the total travel distance of the carriage 44, the number of times of acceleration / deceleration of the carriage 44, and the carriage 44. The number of times of contact (number of collisions), the type of reader (electronic cassette 68 or image reader 170), lot information of the mobile radiation imaging apparatus 22, and the like.

  For example, with respect to the battery 58, if a sensor for detecting the remaining capacity of the battery is installed, the remaining capacity of the battery 58 is periodically determined (every event occurs; for example, when shooting / moving starts / stops / reads). The following history table is created and left in the log memory 250.

  The history of the distance traveled and the number of times of acceleration / deceleration is recorded in the log memory 250 by creating a history table almost similar to the battery 58 described above. The moving distance is obtained by counting with a counter from the speed sensor 74, the number of rotations of the wheels 60, etc., and the number of acceleration / deceleration is counted with the counter from the output from the sensor that detects sudden braking or sudden acceleration. Can be obtained at Also in this case, it may be recorded every time an event occurs.

  As for the history of the number of times of contact (history of power stoppage by hitting an obstacle), the output from the contact sensor 78 is counted by a counter and the time is recorded.

  The history relating to the operation of the reader (electronic cassette 68 or image reading device 170) may be integrated with the information of the battery 58. That is, it records what time and what time it worked.

  In addition, regarding the history of the electric lamp 71, it is possible to count the number of times the electric lamp 71 is used for displaying the photographing region. Of course, the count value may be displayed on the display 62.

  For the usage history of the radiation source 64, the mAs value and tube voltage at the time of radiation imaging are collected. As a method for collecting mAs values and tube voltages, a system that can automatically collect values set at the time of photographing may be used, or a photo timer or the like may be installed at the time of photographing to take actual measurement values and collect the results. Good. The number of times of exposure is provided with a mechanism for counting the number of times the photographing switch 84 is pressed, or the number of times that the current / voltage exceeds a certain threshold in the circuit for photographing is fed back to the console 52. It may be a system.

Further, as the use history, information unique to the mobile radiation imaging apparatus 22 as described below may be managed. The following information may be input by an engineer via an input device, or when service personnel exchange parts, the operation history may be rewritten.
・ Material of radiation source (target, filter, filament) ・ Number of re-photographing (stored in association with engineer information)
-Lot information: Lot information of mobile radiography equipment itself, lot information of parts such as batteries, etc.-Maintenance history (information such as when the source target was replaced)

  For example, the number of times of use (the number of times of charging) of the battery 58 in the usage history may be updated by the engineer via the input device, or a counter for counting the charging of the battery 58 is provided separately. You may make it obtain from these count values. The number of times the battery 58 is used is reset to 0 when the battery 58 is replaced with a new one or repaired. The number of times the radiation source 64 is used (the number of exposures) may be updated by the engineer via the input device, or a separate counter for counting the exposure from the radiation source may be provided. You may make it obtain from a numerical value. The number of times the radiation source 64 is used is reset to 0 when it is replaced with a new one or repaired. The number of times the lamp 71 is used may be updated by the engineer via the input device. Alternatively, a counter that counts the ON operation of the switch of the lamp 71 is provided separately and obtained from the count value of the counter. May be. The number of times the lamp 71 is used is reset to zero when it is replaced with a new one or when repair is performed. The total traveling distance of the carriage 44 may be obtained by integrating the results obtained by integrating the output signals from the speed sensor 74. The total traveling distance of the carriage 44 is reset to 0 when the moving mechanism 50 is replaced with a new one or repaired. The number of times of acceleration / deceleration of the carriage 44 is obtained by updating the count value when the result (absolute value) obtained by differentiating the output signal from the speed sensor 74 exceeds a predetermined threshold value (absolute value). Also good. The number of times of acceleration / deceleration of the carriage 44 is reset to 0 when the moving mechanism 50 is replaced with a new one or repaired. The number of times of contact of the carriage 44 (number of collisions) is obtained by counting the output from the contact sensor 78 with a counter. The contact count of the carriage 44 is reset to 0 when the moving mechanism 50 is replaced with a new one or repaired. The above-described resetting to 0 may be performed by an engineer via an input device, or can be performed by resetting the counter to 0 during maintenance. The type of the reader may be input by the engineer through the input device, or may be obtained from the lot information of the mobile radiation imaging apparatus 22. The lot information of the mobile radiation imaging apparatus 22 may be obtained by reading the lot information recorded in the system area from the OS (operation system) recorded in the memory of the console control apparatus 80.

  As the maintenance history, for each of various parts constituting the mobile radiography apparatus 22, information on the time of replacement with a new one, the time of repair, and the number of repairs are listed. Such information can be recorded by an engineer inputting it through an input device.

  The imaging plan includes the moving route of the mobile radiation imaging apparatus 22 and the imaging order (arrangement of imaging menus), and the maintenance plan should be inspected for various parts constituting the mobile radiation imaging apparatus 22. This includes information such as when and when parts should be replaced.

  Therefore, the plan information creation unit 254 receives, for example, the ordering information sent from the server 38 after the mobile radiation imaging apparatus 22 is activated, and receives one or more imaging menus requested for imaging and the capacity of the battery 58 (full capacity). Information regarding the optimal travel route and shooting menu order is created from the capacity at the time of charging (default value), and stored in the plan information memory 252 as a shooting plan.

  In addition, the plan information creation unit 254 requests the server 38 to transmit a maintenance plan stored in the server 38 (a maintenance plan updated at the previous use). In the initial stage, for example, an engineer inputs an inspection time and replacement time of parts using an input device, creates a maintenance plan, and stores it in the server 38.

  On the other hand, as shown in FIG. 12, the external central management unit 14 includes a plurality of database DBs set for each mobile radiography apparatus 22 and IDs sent from the mobile radiography apparatus 22 together with analysis request instructions. An information receiving unit 270 that receives information, ordering information, history information, and the like, a first analysis unit 272A that performs analysis related to re-shooting based on the received information and database DB information, and the received information and database DB information Based on the second analysis unit 272B that performs an analysis related to the addition of the shooting menu, and a third analysis unit 272C that performs an analysis regarding the ratio of the power consumption to one exposure based on the received information and the information in the database DB. Based on the received information and the information in the database DB, the unit travel distance (for example, 1 m) A fourth analysis unit 272D that performs an analysis on the ratio of the power consumption, a fifth analysis unit 272E that performs an analysis on the battery capacity at the time of full charge based on the received information and the information in the database DB, and a first analysis unit The first analysis result transmission unit 274 that transmits each analysis result from the 272A to the fifth analysis unit 272E to the requested mobile radiography apparatus 22, and the analysis on the deterioration of the battery 58 based on the received history information. A sixth analyzing unit 272F for performing analysis, a seventh analyzing unit 272G for analyzing deterioration of the target of the radiation source 64 based on the received history information, and an analysis regarding deterioration of the filter of the radiation source 64 based on the received history information. The eighth analysis unit 272H for performing the analysis on the deterioration of the filament of the radiation source 64 based on the received history information. A ninth analysis unit 272I, a tenth analysis unit 272J that analyzes the deterioration of the lamp 71 based on the received history information, and an eleventh analysis unit 272K that analyzes the deterioration of the electronic cassette 68 based on the received history information. A twelfth analysis unit 272L that analyzes the deterioration of the image reading device 170 based on the received history information, a thirteenth analysis unit 272M that analyzes the deterioration of the moving mechanism 50 based on the received history information, A second analysis result transmission unit 276 that transmits each analysis result from the sixth analysis unit 272F to the thirteenth analysis unit 272M to the requested mobile radiography apparatus 22, and the requested mobile radiography apparatus 22 Corresponding history information regarding the related mobile radiography apparatus 22 (mobile radiography apparatus 22 installed in the same medical institution 12) Analysis of which mobile radiation imaging device 22 should be used among the related information reading unit 278 read from the database DB and two or more mobile radiation imaging devices 22 installed in the same medical institution 12 And a third analysis result transmission unit 280 for transmitting the analysis result from the fourteenth analysis unit 272N to the requested mobile radiography apparatus 22.

  The database DB set for each mobile radiography apparatus 22 includes ID information of the corresponding mobile radiography apparatus 22, ID information of the medical institution 12 in which the mobile radiography apparatus 22 is installed, and the mobile radiation. A time-series file of ID information of the mobile radiography apparatus 22 (another mobile radiography apparatus 22 installed in the same medical institution 12) related to the imaging apparatus 22 and ordering information of the mobile radiography apparatus 22 ( A request date order), a usage history time series file (request date order), an analysis result time series file (request date order), and the like are stored. Each time there is an analysis request for the mobile radiography apparatus 22, the ordering information and usage history transmitted from the mobile radiography apparatus 22 are newly registered in the corresponding time series file, and the analysis described later is performed. The results of are newly registered in the corresponding time series file, and the transition is clarified. In addition, the database DB relating to the related mobile radiography apparatus 22 includes thresholds for the number of exposures, the movement distance, and the number of charges used in the selection analysis (the 14th analysis unit 272N) of the mobile radiography apparatus 22. A value (defined as wear level) is registered. The above data structure is the same for other databases DB.

  The analysis processing in the first analysis unit 272A to the fifth analysis unit 272E is basically performed by the following method.

(1) First analysis unit 272A (analysis regarding re-photographing)
(A) Engineer information: The ratio of re-photographing is set according to the frequency of re-photographing (1 when the frequency of re-photographing is 0). The frequency is set so as to increase as the frequency increases. This ratio is Aa.

  (B) Engineer information: The ratio of re-photographing is set according to the years of experience (1 for the case of 10 years of experience). The ratio is set higher as the years of experience are shorter. Let this ratio be Ab.

  (C) Subject information: A re-imaging ratio (1 when age is 20) is set according to the age of the subject 66. The ratio is set to be higher as the age of the subject is lower. Let this ratio be Ac.

  (D) Subject information: A re-imaging ratio (1 when the re-imaging frequency is 0) is set according to the re-imaging information (re-imaging frequency) of the subject 66. The frequency is set so as to increase as the frequency increases. This ratio is Ad.

  The above-described ratios Aa, Ab, Ac, and Ad are acquired for each subject 66, and these ratios are multiplied to obtain a total re-imaging ratio for each subject 66. Then, for each subject 66, the number of re-imaging is statistically analyzed. The above-described ratios Aa, Ab, Ac, and Ad may be calculated and statistically analyzed based on data mining from the database DB of the mobile radiation imaging apparatus 22 having a similar usage pattern among the plurality of database DBs. . The same applies hereinafter. As a data form of this analysis result, a code name indicating an analysis result related to re-imaging is included in a data string in which the ID number of the subject 66 expected to be re-photographed and the number of re-photographs are arranged in pairs. An added data form is conceivable.

(2) Second analysis unit 272B (analysis regarding addition of shooting menu)
(E) Subject information: A ratio for adding an imaging menu is set according to the number of medical histories (1 when the number of medical histories is 1). The ratio is set higher as the number of medical histories increases. This ratio is Ae.

  Then, the number of additional imaging menus is statistically analyzed for each subject 66. As a data form of this analysis result, an addition number of imaging menus is arranged in a data string in which an ID number of a subject 66 to whom an imaging menu is expected to be added and the number of additions of the imaging menu are arranged in pairs. A data form to which a code name indicating the analysis result is added is conceivable.

(3) 3rd analysis part 272C (analysis regarding the ratio of the power consumption with respect to one exposure)
(F) Subject information: Since the tube voltage and the mAs value are set according to the physique (weight) of the subject 66, the ratio of the power consumption to one exposure (standard) according to the body weight 1 is set for weight. The ratio is set to increase as the weight increases. This ratio is Af.

  (G) Subject information: Since the tube voltage and mAs value are set according to the body fat percentage, the ratio of the power consumption to one exposure according to the body fat percentage (in the case of standard body fat Is set to 1). The ratio is set to be higher as the body fat percentage is higher. This ratio is Ag.

  In addition, regarding the above-mentioned ratios Af and Ag, the tube voltage and the mAs value may be set uniformly according to gender, and then finely adjusted according to the physique or the body fat percentage.

  (H) Usage history: The ratio of the power consumption to one exposure (the ratio of the new battery 58 is set to 1) is set according to the number of times of use (charge count) of the battery 58. Set so that the ratio increases as the number of uses increases. This ratio is Ah.

  (I) Usage history: The ratio of power consumption to one exposure (the ratio of new radiation sources is set to 1) is set according to the number of times the radiation source 64 is used (number of exposures). Set so that the ratio increases as the number of uses increases. Let this ratio be Ai.

  (J) Usage history: The ratio of the power consumption to one exposure (the ratio of new lamps is set to 1) is set according to the number of times the lamp 71 is used. Set so that the ratio increases as the number of uses increases. Let this ratio be Aj.

  (K) Usage history: The ratio of power consumption to one exposure is set depending on the type of reader. Let this ratio be Ak. For example, if the model uses the image reading apparatus 170, the ratio Ak is set to 1, and if the model uses the electronic cassette 68, the ratio Ak is set to 0.5, for example.

  Then, for each subject 66, the above-mentioned ratios Af, Ag, Ah, Ai, Aj, Ak are acquired, and these ratios are multiplied to calculate the power consumption for one exposure for each subject 66. Find the overall ratio. As a data form of the analysis result, the ID number of the subject 66 and the total ratio of the power consumption with respect to one exposure corresponding to the subject are combined into a data string arranged in a single exposure. A data format to which a code name indicating an analysis result regarding the ratio of the power consumption to the shot is added can be considered.

(4) Fourth analysis unit 272D (analysis regarding the ratio of the power consumption to the unit travel distance)
(L) Usage history: The ratio of the power consumption to the unit travel distance (the ratio of a new battery is set to 1) is set according to the number of times the battery 58 is used (number of times of charging). Set so that the ratio increases as the number of uses increases. This ratio is Al.

  (M) Usage history: The ratio of the power consumption to the unit travel distance is set according to the total travel distance of the carriage 44 (when the total travel distance is 0, 1 is set). The ratio is set to be higher as the total travel distance is longer. This ratio is Am.

  (N) Usage history: The ratio of the power consumption to the unit travel distance is set according to the number of times of acceleration / deceleration (rapid start, sudden stop) of the carriage 44. The higher the number of times, the higher the ratio. Let this ratio be An.

  (O) Usage history: The ratio of the power consumption to the unit travel distance is set according to the number of times of contact of the carriage 44 (number of collisions). The higher the number of times, the higher the ratio. This ratio is Ao.

  Then, the above-described ratios Al, Am, An, and Ao are acquired, and these ratios are multiplied to obtain a total ratio of power consumption with respect to the unit travel distance. As a data form of this analysis result, a data form in which a code name indicating an analysis result of power consumption per unit travel distance and a total ratio of power consumption per unit travel distance are arranged.

(5) 5th analysis part 272E (analysis regarding the ratio of the battery capacity at the time of full charge)
(P) Usage history: The ratio of the battery capacity when fully charged (the ratio of the new battery 58 is set to 1) is set according to the number of times the battery 58 is used (number of times of charging). Set so that the ratio decreases as the number of uses increases. Let this ratio be Ap. The calculation of the ratio of the battery capacity at the time of full charge may be performed according to the type of the battery 58, or the database DB of the mobile radiation imaging apparatus 22 equipped with the same type of battery 58 among the plurality of database DBs. May be performed based on data mining. The type of the battery 58 can be easily identified from the lot information of the mobile radiation imaging apparatus 22. As a data form of this analysis result, a data form in which a code name indicating an analysis result of the battery capacity at the time of full charge and a ratio of the battery capacity at the time of full charge are arranged can be considered.

  The first analysis result transmission unit 274 creates a first transmission file for transmitting the analysis result to the requested mobile radiography apparatus 22. The first transmission file includes, for example, a data string in which analysis results from the first analysis unit 272A to the fifth analysis unit 272E are arranged in order, and the ID number of the requested mobile radiography apparatus 22 at the head thereof. It has a data structure attached. Then, the first analysis result transmission unit 274 transmits the created first transmission file toward the mobile radiation imaging apparatus 22 that has been requested.

  Next, the analysis processing in the sixth analysis unit 272F to the thirteenth analysis unit 272M is basically performed by the following method.

(6) Sixth analysis unit 272F (analysis regarding deterioration of the battery 58)
The degree of deterioration of the battery 58 is obtained based on the number of times of use (charge count) of the battery 58 in the use history. For example, the deterioration degree of the new battery 58 is assumed to be the initial deterioration degree Ra0 (= 0), the coefficient (repair coefficient) for obtaining the deterioration degree due to repair is set to Kar, the number of repairs is set to Nar, and the new battery 58 must be replaced with a new one. It is possible to obtain the following calculation formula, where the deterioration degree that must be used is the limit deterioration degree Ram, the average number of times of use until replacement with a new one is the allowable number of use Nam, and the current number of use is Na.
Current degradation level of battery = Ra0 + Kar × Nar + {(Ram / Nam) × Na}

  Based on the obtained degree of deterioration, the next inspection time of the battery of the mobile radiography apparatus that has been instructed to analyze and the replacement time for a new one are analyzed. This can be obtained statistically from the transition of the degree of deterioration in the past. As a data form of the analysis result, a data form in which a code name indicating an analysis result related to the maintenance of the battery, an inspection time, and a replacement time for a new product are arranged. The ratio Ah in the third analysis unit 272C and the ratio Al in the fourth analysis unit 272D may be set based on the current degree of deterioration of the battery 58.

(7) Seventh analysis unit 272G (analysis regarding deterioration of target of radiation source 64)
The deterioration degree of the target of the radiation source is obtained based on the number of times the target is used in the usage history (the number of exposures from a new product). For example, the deterioration degree of a new target is set as the initial deterioration degree Rb0 (= 0), the repair coefficient is Kbr, the repair number is Nbr, the limit deterioration degree is Rbm, the allowable use number is Nbm, and the current use number is When Nb, it can be obtained by the following arithmetic expression.
Current degree of degradation of target = Rb0 + Kbr × Nbr + {(Rbm / Nbm) × Nb}

  Based on the obtained degree of deterioration, the next inspection time of the target of the mobile radiography apparatus 22 for which an analysis request instruction has been given and the replacement time for a new one are analyzed. As a data form of the analysis result, a data form in which a code name indicating an analysis result related to target maintenance, an inspection time, and a replacement time for a new product are arranged.

(8) Eighth analysis unit 272H (analysis regarding deterioration of filter of radiation source 64)
The degree of deterioration of the filter of the radiation source 64 is obtained based on the number of times the filter is used in the usage history (the number of exposures from a new product). For example, the deterioration degree of a new filter is the initial deterioration degree Rc0 (= 0), the repair coefficient is Kcr, the repair number is Ncr, the limit deterioration degree is Rcm, the allowable use number is Ncm, and the current use number is When Nc, it can be obtained by the following arithmetic expression.
Current degree of deterioration of filter = Rc0 + Kcr × Ncr + {(Rcm / Ncm) × Nc}

  Based on the obtained degree of deterioration, the next inspection time of the filter of the mobile radiography apparatus 22 for which an analysis request instruction has been issued and the replacement time for a new one are analyzed. As a data form of the analysis result, a data form in which a code name indicating an analysis result related to filter maintenance, an inspection time, and a replacement time for a new product are arranged.

(9) Ninth analysis unit 272I (analysis on filament degradation)
The degree of deterioration of the filament of the radiation source is obtained based on the number of times the filament is used in the usage history (the number of exposures from a new article). For example, the degradation degree of a new filament is assumed to be the initial degradation degree Rd0 (= 0), the repair coefficient is Kdr, the number of repairs is Ndr, the limit deterioration degree is Rdm, the allowable use number is Ndm, and the current use number is When Nd, it can be obtained by the following arithmetic expression.
Current degradation degree of filament = Rd0 + Kdr × Ndr + {(Rdm / Ndm) × Nd}

  Based on the obtained degree of deterioration, the next inspection time of the filament of the mobile radiography apparatus 22 for which an analysis request instruction has been given and the replacement time for a new one are analyzed. As a data form of the analysis result, a data form in which a code name indicating an analysis result related to the maintenance of the filament, an inspection time, and a replacement time for a new product are arranged.

(10) Tenth analysis unit 272J (analysis regarding deterioration of electric lamp 71)
The degree of deterioration of the lamp is obtained based on the number of uses of the lamp 71 in the usage history. For example, the deterioration degree of a new lamp is set as the initial deterioration degree Re0 (= 0), the repair coefficient is Ker, the repair number is Ner, the limit deterioration degree is Rem, the allowable use number is Nem, and the current use number is set. When it is Ne, it can be obtained by the following arithmetic expression.
Current degree of deterioration of electric lamp = Re0 + Ker × Ner + {(Rem / Nem) × Ne}

  Based on the obtained degree of deterioration, the next inspection time of the lamp 71 of the mobile radiography apparatus 22 for which the analysis request is instructed or the replacement time for a new one is analyzed. This can be obtained statistically from the transition of the degree of deterioration in the past. As a data form of the analysis result, a data form in which a code name indicating an analysis result regarding the maintenance of the electric lamp 71, an inspection time, and a replacement time for a new product are arranged. Note that the ratio Aj in the third analysis unit 272C described above may be set based on the current degree of deterioration of the lamp 71.

(11) Eleventh analysis unit 272K (analysis regarding deterioration of electronic cassette 68)
In the first mobile radiation imaging apparatus 22A, the degree of deterioration of the electronic cassette 68 is obtained based on the number of exposures in the usage history. For example, the deterioration degree of a new electronic cassette 68 is assumed to be the initial deterioration degree Rf0 (= 0), the repair coefficient is Kfr, the number of repairs is Nfr, the limit deterioration degree is Rfm, the allowable use number is Nfm, and the current use When the number of times is Nf, it can be obtained by the following arithmetic expression.
Current degradation level of cassette = Rf0 + Kfr × Nfr + {(Rfm / Nfm) × Nf}

  Based on the obtained degree of deterioration, the next inspection time of the electronic cassette 68 of the first mobile radiography apparatus 22A that has been instructed to analyze and the time for replacement with a new one are analyzed. As a data form of the analysis result, a data form in which a code name indicating an analysis result related to maintenance of the electronic cassette 68, an inspection time, and a replacement time for a new product are arranged.

(12) Twelfth analysis unit 272L (analysis regarding deterioration of the image reading apparatus 170)
In the second mobile radiography apparatus 22B, the degree of deterioration of the image reading apparatus 170 is obtained based on the number of exposures in the usage history. For example, the deterioration degree of the new image reading apparatus 170 is set as the initial deterioration degree Rg0 (= 0), the repair coefficient is Kgr, the number of repairs is Ngr, the limit deterioration degree is Rgm, the allowable use number is Ngm, When the number of uses is Ng, it can be obtained by the following arithmetic expression.
Current degradation level of image reading apparatus = Rg0 + Kgr × Ngr + {(Rgm / Ngm) × Ng}

  Based on the obtained degree of deterioration, the next inspection time of the image reading device 170 of the second mobile radiography apparatus 22B, which has been instructed to analyze, and the replacement time for a new one are analyzed. As a data form of the analysis result, a data form in which a code name indicating an analysis result related to maintenance of the image reading apparatus 170, an inspection time, and a replacement time for a new product are arranged.

(13) Thirteenth analysis unit 272M (analysis regarding deterioration of the moving mechanism 50)
The deterioration degree of the moving mechanism 50 is obtained based on the total travel distance of the carriage 44 in the usage history, the number of times of acceleration / deceleration of the carriage 44, and the number of times of contact of the carriage 44 (number of collisions). For example, the deterioration degree of the new moving mechanism 50 is set as an initial deterioration degree Rh0 (= 0), the repair coefficient is Khr, the number of repairs is Nhr, and a coefficient for obtaining the deterioration degree due to the total travel distance of the carriage 44 ( Travel coefficient) is Kh1, the total travel distance is Nh1, the coefficient (acceleration / deceleration coefficient) for obtaining the degree of deterioration due to the number of times of acceleration / deceleration of the carriage 44 is Kh2, the number of acceleration / deceleration is Nh2, and the degree of deterioration due to the number of times the carriage 44 is contacted When the coefficient (contact coefficient) for obtaining the value is Kh3 and the number of times of contact is Nh3, it can be obtained by the following arithmetic expression.
Current degradation level of the moving mechanism 50 = Rh0 + Khr × Nhr + Kh1 × Nh1 + Kh2 × Nh2
+ Kh3 × Nh3

  Based on the obtained degree of deterioration, the next inspection time of the moving mechanism 50 of the mobile radiography apparatus 22 for which an analysis request is instructed and the replacement time for a new one are analyzed. As a data form of this analysis result, a data form in which a code name indicating an analysis result relating to maintenance of the moving mechanism 50, an inspection time, and a replacement time for a new product are arranged. Note that the ratios Am, An, and Ao in the fourth analysis unit 272D described above may be collectively set based on the current deterioration degree of the moving mechanism 50.

  Various deterioration levels, coefficient calculation, inspection time, and replacement time for a new product in the above (6) to (13) are determined from the database DB of the mobile radiography apparatus 22 having a similar usage pattern among the plurality of database DBs. You may perform based on data mining.

  The second analysis result transmission unit 276 creates a second transmission file for transmitting the analysis result to the requested mobile radiography apparatus 22. The second transmission file includes, for example, a data string in which analysis results from the sixth analysis unit 272F to the thirteenth analysis unit 272M are sequentially arranged, and the ID number of the requested mobile radiography apparatus 22 at the head thereof. It has a data structure attached. Then, the second analysis result transmission unit 276 transmits the created second transmission file to the mobile radiation imaging apparatus 22 that has been requested.

  Next, analysis processing in the fourteenth analysis unit 272N is basically performed by the following method.

(14) Fourteenth analysis unit 272N (analysis regarding selection of mobile radiography apparatus 22 to be used)
Before describing the processing in the fourteenth analysis unit 272N, the processing in the related information reading unit 278 will be described. The related information reading unit 278 corresponds to the requested ID information of the mobile radiography apparatus 22. The ID information of the mobile radiography apparatus 22 (another mobile radiography apparatus 22 installed in the same medical institution 12) related to the mobile radiography apparatus 22 is read from the database DB.

  If the read ID information is invalid data (there is no associated mobile radiography apparatus 22), the analysis process in the fourteenth analysis unit 272N is not performed.

  If the read ID information is valid, analysis processing in the fourteenth analysis unit 272N is performed. The fourteenth analysis unit 272N refers to the usage history of the mobile radiation imaging apparatus 22 and the usage history of the associated mobile radiation imaging apparatus 22, and the number of exposures, the movement distance, and the If at least one of the charging times does not exceed the corresponding wear level, the mobile radiography apparatus 22 to be used this time is selected so that these mobile radiography apparatuses 22 are used on average. If the number of exposures, the moving distance, and the number of times of charging of the mobile radiography apparatus 22 exceed the corresponding wear levels, for example, the mobile radiography apparatus 22 has the least number of charging times among these mobile radiography apparatuses 22. A mobile radiation imaging apparatus 22 other than the imaging apparatus 22 is selected as the mobile radiation imaging apparatus 22 to be used this time. The mobile radiation imaging apparatus 22 not selected this time is used for emergency.

  The third analysis result transmission unit 280 creates a third transmission file for transmitting the analysis result to the requested mobile radiography apparatus 22. The third transmission file is data in which a code name indicating an analysis result related to selection of the mobile radiography apparatus 22 is added to the analysis result (ID information of the mobile radiography apparatus 22 to be used) from the 14th analysis unit 272N. It has a structure. If there is no associated mobile radiography apparatus, a code name indicating that is attached. Of course, if the number of exposures, the moving distance, and the charging number of the mobile radiography apparatus 22 exceed the corresponding wear levels, the ID information of the emergency mobile radiography apparatus 22 that is not used, It is preferable to have a data structure to which a check menu for regular maintenance for checking the mobile radiography apparatus 22 for emergency is added. Then, the third analysis result transmission unit 280 transmits the created third transmission file to the requested mobile radiography apparatus 22 and the server 38 of the management room 32.

  Information transmitted from the first analysis result transmission unit 274, the second analysis result transmission unit 276, and the third analysis result transmission unit 280 of the central management unit 14 is received by the analysis result reception unit 258 of the mobile radiography apparatus 22. Among them, information from the first analysis result transmission unit 274 (respective analysis results from the first analysis unit 272A to the fifth analysis unit 272E) is sent to the first feedback unit 260 or the second feedback unit 262, and the second Information from the analysis result transmission unit 276 (respective analysis results from the sixth analysis unit 272F to thirteenth analysis unit 272M) is sent to the third feedback unit 264, and information from the third analysis result transmission unit 280 (fourteenth analysis). Analysis result from the unit 272N) is sent to the guidance unit 268.

  The first feedback unit 260 reflects each analysis result from the first analysis unit 272 </ b> A to the fifth analysis unit 272 </ b> E to the already created imaging plan when the mobile radiation imaging apparatus 22 is operated. The second feedback unit 262 reflects each analysis result from the first analysis unit 272A to the fifth analysis unit 272E on the ongoing imaging plan at the event after the mobile radiation imaging apparatus 22 is operated. The third feedback unit 264 reflects each analysis result from the sixth analysis unit 272F to the thirteenth analysis unit 272M on the maintenance plan already created when the mobile radiation imaging apparatus 22 ends. Processing in the first feedback unit 260, the second feedback unit 262, and the third feedback unit 264 will be described later.

  On the other hand, the guidance unit 268 displays the analysis result from the fourteenth analysis unit 272N on the display 62 of the console 52. If the activated mobile radiography apparatus 22 is not selected, it is designated as the mobile radiography apparatus 22 to be used for emergency use. Therefore, the technician uses the mobile radiography apparatus 22 for use. Cancel and activate the other selected mobile radiography apparatus 22.

  Of course, if the guidance unit 268 is installed in the central computer connected to the server 38 together with the ID transmission unit that transmits the ID information of the mobile radiation imaging apparatus 22 scheduled to be used to the central management unit 14 as described above. Since the analysis result from the fourteenth analysis unit 272N is transmitted to the central computer, the analysis result is displayed on the display of the central computer, the selected mobile radiography apparatus 22 is confirmed, and the selected result is displayed. By activating the mobile radiation imaging apparatus 22, it is possible to prevent useless activation operations.

  The radiation imaging management system 10 according to the present embodiment is basically configured as described above, and the operation thereof will be described next.

  First, in step S1 of FIG. 13, among the plurality of subjects 66 in the ward, a subject 66 to be radiographed using the mobile radiography apparatus 22 is selected by a doctor, and each selected subject is selected. Ordering information including imaging menus (imaging site, number of sheets, etc.) corresponding to each person 66 is created and stored in the server 38 of the management room 32.

  If a plurality of mobile radiography apparatuses 22 are installed in the same medical institution, the mobile radiography apparatus 22 to be used is selected in step S2 and subsequent steps.

  That is, when the engineer activates the mobile radiography apparatus 22 in step S2, the information transmission unit 256 sends an ID request for analysis information (analysis request relating to selection of the mobile radiography apparatus 22 to be used) to an external center. Transmit to the management unit 14.

  In step S3, processing in the central management unit 14 is performed. That is, the information receiving unit 270 of the central management unit 14 receives the ID information sent together with the analysis request instruction from the mobile radiation imaging apparatus 22.

  In step S <b> 4, the related information reading unit 278 moves the mobile radiation imaging apparatus 22 (same medical treatment) associated with the mobile radiation imaging apparatus 22 from the database DB corresponding to the ID information of the requested mobile radiation imaging apparatus 22. The ID information of another mobile radiation imaging apparatus 22) installed in the engine 12 is read out.

  In step S <b> 5, the related information reading unit 278 determines whether there is a mobile radiation imaging apparatus 22 related to the mobile radiation imaging apparatus 22. If the read ID information is invalid data (there is no associated mobile radiography apparatus 22), the analysis process in the fourteenth analysis unit 272N is not performed, the process proceeds to step S7, and the third analysis result transmission unit 280 Then, a third transmission file with a code name indicating that there is no related mobile radiography apparatus 22 is created and transmitted to the requested mobile radiography apparatus 22.

  On the other hand, if it is determined in step S5 that the read ID information is valid, the process proceeds to step S6, and analysis processing in the fourteenth analysis unit 272N is performed. That is, the fourteenth analysis unit 272N refers to the use history of the mobile radiography apparatus 22 registered in the database DB and the use history of the related mobile radiography apparatus 22 while referring to these mobile radiography apparatuses 22. The number of exposures, the distance traveled, and the number of charges are compared with the corresponding wear levels.

  If any one of the number of times of exposure, the distance of movement, and the number of times of charge does not exceed the corresponding wear level, the mobile radiation to be used this time is used so that these mobile radiation imaging devices 22 are used on average. The imaging device 22 is selected.

  If any of the number of exposures, the distance traveled, and the number of times of charging exceed the corresponding degree of wear, for example, the mobile radiation imaging device 22 other than the mobile radiation imaging device 22 with the smallest number of times of charging is selected among these mobile radiation imaging devices 22. Type radiography apparatus 22 is selected as the mobile radiography apparatus 22 to be used this time.

  In step S7, the third analysis result transmission unit 280 manages the analysis result (ID information of the mobile radiography apparatus 22 to be used) from the fourteenth analysis unit 272N and the requested mobile radiography apparatus 22 and management. It transmits toward the server 38 of the room 32.

  In step S8 and subsequent steps, processing in the console control device 80 of the mobile radiation imaging apparatus 22 is performed. That is, in step S8, the analysis result receiving unit 258 receives the analysis result (third transmission file) in the central management unit 14.

  In step S <b> 9, the guidance unit 268 displays information included in the third transmission file on the display 62 of the console 52. As described above, if the activated mobile radiography apparatus 22 is not selected, it is designated as the mobile radiography apparatus 22 to be used for emergency use. The use at 22 is cancelled, and the other selected mobile radiation imaging apparatus 22 is activated.

  Next, referring to FIG. 14 to FIG. 19, a process for recreating an optimal imaging plan while performing radiography using the activated mobile radiography apparatus 22 and a process for updating the maintenance plan will be described. explain.

  First, in step S <b> 101 of FIG. 14, the plan information creation unit 254 of the console control device 80 in the mobile radiation imaging apparatus 22 requests the server 38 to transmit the ordering information stored in the server 38. The plan information creation unit 254 receives the ordering information sent from the server 38, and the optimal travel route from one or more shooting menus requested for shooting and the capacity of the battery 58 (capacity when fully charged: default value). And information regarding the order of the shooting menu are created and stored in the plan information memory 252 as a shooting plan.

  In step S102, the information transmission unit 256 transmits ID information, ordering information (such as a shooting menu) included in the shooting plan, history information, and the like to an external central management unit together with an analysis request instruction.

  In step S103 and subsequent steps, processing in the central management unit 14 is performed. That is, in step S103, the information receiving unit 270 of the central management unit 14 receives ID information sent from the mobile radiation imaging apparatus 22 together with an analysis request instruction, ordering information (imaging menu, etc.) included in the imaging plan, and history information. Receive etc.

  In step S104, the first analysis unit 272A performs analysis related to re-shooting based on the received information and the information in the database DB. In step S <b> 105, the second analysis unit 272 </ b> B performs an analysis related to addition of the shooting menu based on the received information and the information in the database DB. In step S106, the third analysis unit 272C performs an analysis on the ratio of the power consumption to one exposure based on the received information and the information in the database DB. In step S107, the fourth analysis unit 272D performs an analysis on the ratio of the power consumption to the unit travel distance (for example, 1 m) based on the received information and the information in the database DB. In step S108, the fifth analysis unit 272E performs an analysis on the battery capacity at the time of full charge based on the received information and the information in the database DB.

  In step S109, the first analysis result transmission unit 274 creates a first transmission file including the analysis results from the first analysis unit 272A to the fifth analysis unit 272E, and sends the first transmission file to the requested mobile radiography apparatus 22 that has been requested. Send.

  In step S110 and subsequent steps, processing by the console control device 80 of the mobile radiation imaging apparatus 22 is performed. That is, in step S110, the analysis result receiving unit 258 receives the analysis result in the central management unit 14 (first transmission file including each analysis result from the first analysis unit 272A to the fifth analysis unit 272E).

  In step S111, the first feedback unit 260 reflects the analysis result included in the received first transmission file in the imaging plan. Here, the processing in the first feedback unit 260 will be described with reference to the flowchart of FIG.

  First, in step S201, the number of exposures is added by the number of times of re-imaging, for the subject 66 expected to be re-photographed indicated by the analysis result of the first analysis unit 272A, for example. That is, the number of exposures corresponding to the number of times of re-imaging is added to the number of exposures registered in the imaging plan.

  Thereafter, in step S202, the number of exposures is added by the number of additions of the imaging menu for the subject 66 who is expected to add the imaging menu indicated by the analysis result in the second analysis unit 272B.

  In step S203, the analysis result (the ratio of the power consumption to one exposure) in the third analysis unit 272C is reflected for each exposure, and the power consumption for all exposures included in the imaging plan. Recalculate

  In step S204, the analysis result (the ratio of the power consumption to the unit travel distance) in the fourth analysis unit 272D is reflected in the calculation of the power consumption based on the travel distance of the travel route listed in the shooting plan. The power consumption accompanying the movement of the carriage 44 is recalculated.

  Further, in step S205, a value obtained by multiplying the capacity (predetermined value) when the battery 58 of the mobile radiography apparatus 22 is fully charged by the analysis result (the ratio of the battery capacity when fully charged) of the fifth analyzer 272E. Is registered in a predetermined register as the current battery capacity (predicted value).

  In step S206, the predicted value of the current battery capacity is compared with the total power consumption recalculated as described above. If the relationship between the predicted value of the current battery capacity and the total power consumption is the predicted value of the current battery capacity ≧ the total power consumption, the imaging plan already created is used without modification.

  If it is determined in step S206 that the predicted value of the current battery capacity is smaller than the total power consumption, the already created shooting plan is corrected. In this correction process, first, in step S207, an optimal travel route (including the order of shooting menus) is analyzed based on the predicted value of the current battery capacity and the total power consumption. In step S208, it is determined whether or not an optimal travel route has been found. If found, the process proceeds to step S209, where a shooting plan based on the new travel route is created and re-registered in the plan information memory 252.

  If it is determined in step S208 that the optimum moving route is not found, the process proceeds to step S210, where one shooting menu with the lowest priority is deleted, and the optimum moving route is set again and the shooting plan is set again. Recreate. Thereafter, the process returns to the processing after step S2 in FIG. 14, and the ordering information and the like after deleting one shooting menu with the lowest priority is transmitted to the central management unit 14 and analyzed again.

  The imaging plan is determined at the stage where the processing in step S206 or step S209 is completed, and the process proceeds to the next step S211. The mobile radiation imaging apparatus 22 stores the determined imaging plan in the management room 32. The data is transmitted to the server 38 and recorded in the server 38. As a result, the doctor creates the next shooting menu, re-registers the shooting menu, and the like based on the determined shooting plan. The determined imaging plan is displayed on the display 62 of the console 52 of the mobile radiation imaging apparatus 22 so that an engineer can check at a glance.

  Returning to the routine of FIG. 14, after the processing in the first feedback unit 260 ends, the process proceeds to step S <b> 112, and the processing in the second feedback unit 262 is performed. Hereinafter, the processing in the second feedback unit 262 will be described by dividing the case.

  First, the process at the stage where the technician moves the mobile radiography apparatus 22 to one hospital room 24 and prepares radiography for one subject 66 (when the first event occurs) is shown in FIG. Will be described with reference to FIG.

  First, in step S301, the capacity update predicting unit 266 consumes the travel distance corresponding to the route traveled by the mobile radiography apparatus 22 from the current battery capacity (predicted value) registered in the predetermined register described above. The current battery capacity (predicted value) is updated by subtracting the electric energy, and is registered again in the predetermined register.

  In step S <b> 302, the plan information creation unit 254 updates the imaging plan by deleting the route that the mobile radiation imaging apparatus 22 has moved out of the moving routes included in the current imaging plan.

  In step S303, the information transmission unit 256 transmits ID information, ordering information (such as a shooting menu) included in the shooting plan, history information, and the like to the external central management unit 14 together with an analysis request instruction. At this time, a code indicating that it is an analysis request instruction when the first event occurs may be transmitted together.

  In step S304, processing in the central management unit 14 is performed. Since this process is the same as the above-described steps S104 to S109 (see FIG. 14), description thereof is omitted. By the processing in the central management unit 14, the first transmission file including the analysis results from the first analysis unit 272A to the fifth analysis unit 272E is transmitted to the requested mobile radiography apparatus 22. If the mobile radiation imaging apparatus 22 transmits a code indicating that it is an analysis request instruction at the time of occurrence of the first event, information necessary for the first event, such as the first analysis unit 272A and the second analysis unit, is transmitted. Only the analysis results in 272B and the fourth analysis unit 272D may be registered in the first transmission file and transmitted to the requested mobile radiography apparatus 22.

  In step S305, the analysis result receiving unit 258 of the mobile radiation imaging apparatus 22 receives the analysis result (first transmission file) in the central management unit 14.

  In step S306, the second feedback unit 262 reflects the analysis result included in the received first transmission file in the imaging plan. First, processing according to steps S201 to S203 in FIG. 16 is performed to calculate the power consumption for all exposures included in the imaging plan.

  In step S307, the analysis result (the ratio of the power consumption to the unit travel distance) in the fourth analysis unit 272D is the travel route listed in the radiographing plan (the route traveled by the mobile radiography apparatus 22 has been deleted). The power consumption associated with the movement of the carriage 44 is recalculated by reflecting it in the calculation of the power consumption based on the travel distance.

  Further, in step S308, the subsequent optimum travel route is searched again. Since the process here is the same as the process after step S206 of FIG. 16 mentioned above, the description is abbreviate | omitted.

  When the process in step S308 is completed, the update of the imaging plan is determined, and the process proceeds to the next step S309, where the mobile radiation imaging apparatus 22 stores the updated imaging plan in the server 38 of the management room 32. And record in the server 38.

  Next, the process at the stage where the technician has completed radiography for one subject 66 using the mobile radiography apparatus 22 (when the second event occurs) will be described with reference to FIG.

  First, in step S401, the capacity update prediction unit 266 subtracts the power consumption based on the current number of exposures from the current battery capacity (predicted value) registered in the predetermined register described above to obtain the current battery capacity. (Predicted value) is updated and registered in the predetermined register described above.

  In step S402, the plan information creation unit 254 updates the imaging plan by deleting the ordering information related to the subject 66 who has completed radiation imaging from the ordering information (imaging menu, etc.) included in the current imaging plan.

  In step S403, the information transmission unit 256 transmits ID information, ordering information (such as a shooting menu) included in the shooting plan, history information, and the like to the external central management unit 14 together with an analysis request instruction. At this time, a code indicating that it is an analysis request instruction when the second event occurs may be transmitted together.

  In step S404, processing in the central management unit 14 is performed. Since this process is the same as the above-described steps S104 to S109 (see FIG. 14), description thereof is omitted. By the processing in the central management unit 14, the first transmission file including the analysis results from the first analysis unit 272A to the fifth analysis unit 272E is transmitted to the requested mobile radiography apparatus 22. In addition, if the code | symbol which shows that it is the analysis request instruction | indication at the time of the 2nd event generation | occurrence | production is transmitted from the mobile radiography apparatus 22, information required in the 2nd event, for example, 1st analysis part 272A-3rd analysis part Only the analysis result at 272C may be registered in the first transmission file and transmitted to the requested mobile radiography apparatus 22.

  In step S405, the analysis result receiving unit 258 of the mobile radiation imaging apparatus 22 receives the analysis result (first transmission file) in the central management unit 14.

  In step S406, the second feedback unit 262 reflects the analysis result included in the received first transmission file in the imaging plan. First, the processing according to steps S201 to S203 in FIG. 16 is performed, and the power consumption for all exposures included in the imaging plan (the ordering information regarding the subject 66 who has performed radiography has been deleted this time). Recalculate

  Further, in step S407, the subsequent optimum travel route is searched again. Since the process here is the same as the process after step S206 of FIG. 16 mentioned above, the description is abbreviate | omitted.

  When the process in step S407 is completed, the update of the imaging plan is determined, and the process proceeds to the next step S408, where the mobile radiation imaging apparatus 22 stores the updated imaging plan in the server 38 of the management room 32. And record in the server 38.

  Next, processing at a stage where a new imaging menu is added (including addition of the subject 66) (when the third event occurs) will be described with reference to FIG.

  First, in step S501, the plan information creation unit 254 updates the shooting plan by adding new ordering information (such as a shooting menu) to the current shooting plan.

  In step S502, the information transmission unit 256 transmits ID information, ordering information (such as a shooting menu) included in the shooting plan, history information, and the like to the external central management unit 14 together with an analysis request instruction. At this time, a code indicating that it is an analysis request instruction when the third event occurs may also be transmitted.

  In step S503, processing in the central management unit 14 is performed. Since this process is the same as the above-described steps S104 to S109 (see FIG. 14), description thereof is omitted. By the processing in the central management unit 14, the first transmission file including the analysis results from the first analysis unit 272A to the fifth analysis unit 272E is transmitted to the requested mobile radiography apparatus 22. In addition, if the code | symbol which shows that it is the analysis request instruction | indication at the time of 3rd event generation | occurrence | production is transmitted from the mobile radiography apparatus 22, information required in the 3rd event, for example, 1st analysis part 272A-3rd analysis part Only the analysis result at 272C may be registered in the first transmission file and transmitted to the requested mobile radiography apparatus 22.

  In step S504, the analysis result receiving unit 258 of the mobile radiation imaging apparatus 22 receives the analysis result (first transmission file) in the central management unit 14.

  In step S505, the second feedback unit 262 reflects the analysis result included in the received first transmission file in the imaging plan. First, processing according to steps S201 to S203 in FIG. 16 is performed, and the power consumption for all exposures included in the imaging plan (new ordering information has been added) is recalculated.

  Further, in step S506, the subsequent optimal travel route is searched again. Since the process here is the same as the process after step S206 of FIG. 16 mentioned above, the description is abbreviate | omitted.

  When the processing in step S506 is completed, the updating of the imaging plan is determined, and the process proceeds to the next step S507, where the mobile radiation imaging apparatus 22 stores the updated imaging plan in the server 38 of the management room 32. And record in the server 38.

  Returning to the routine in FIG. 15, after step S113, the process at the end of the mobile radiation imaging apparatus 22, that is, the radiation imaging by the mobile radiation imaging apparatus 22 based on the imaging plan is finished, and the mobile radiation imaging apparatus. Processing at the stage where 22 is moved to the management room 32 is performed.

  First, in step S113, the engineer requests transmission of a maintenance plan via an input device, for example. The plan information creation unit 254 requests the server 38 to transmit a maintenance plan stored in the server 38 (a maintenance plan updated at the previous use).

  In step S <b> 114, the plan information creation unit 254 receives the maintenance plan sent from the server 38 and stores it in the plan information memory 252.

  In step S115, the information transmission unit 256 transmits ID information, history information, and the like to the external central management unit 14 together with an analysis request instruction.

  In step S116 and subsequent steps, processing in the central management unit 14 is performed. That is, in step S116, the information receiving unit 270 of the central management unit 14 receives ID information, history information, and the like sent together with the analysis request instruction from the mobile radiation imaging apparatus 22.

  In step S117, the sixth analysis unit 272F performs an analysis on the deterioration of the battery 58 based on the received history information. Further, in step S118, the seventh analysis unit 272G performs analysis regarding the deterioration of the target of the radiation source 64 based on the received history information, and in step S119, the eighth analysis unit 272H, based on the received history information. The analysis on the deterioration of the filter of the radiation source 64 is performed, and in step S120, the ninth analysis unit 272I performs the analysis on the deterioration of the filament of the radiation source 64 based on the received history information. Further, in step S121, the tenth analysis unit 272J performs an analysis on the deterioration of the lamp 71 based on the received history information. In step S122, the eleventh analysis unit 272K determines that the mobile radiography apparatus 22 that has received the analysis request instruction is the first mobile radiography apparatus 22A (recognized by the ID information), receives the history information. Based on the analysis, the deterioration of the cassette 68 is analyzed. On the other hand, if the mobile radiography apparatus 22 that has received the analysis request instruction is the second mobile radiography apparatus 22B (recognized by ID information), in step S123, the twelfth analysis unit 272L adds the received history information. Based on this, an analysis regarding deterioration of the image reading apparatus 170 is performed. In step S124, the thirteenth analysis unit 272M performs an analysis on the deterioration of the moving mechanism 50 based on the received history information.

  In step S125, the second analysis result transmission unit 276 creates a second transmission file including the analysis results from the sixth analysis unit 272F to the thirteenth analysis unit 272M, and sends it to the requested mobile radiography apparatus 22 that has been requested. Send.

  After step S126, processing in the console control device 80 of the mobile radiation imaging apparatus 22 is performed. That is, in step S126, the analysis result receiving unit 258 receives the analysis result in the central management unit 14 (second transmission file including the analysis results from the sixth analysis unit 272F to the thirteenth analysis unit 272M).

  In step S127, the third feedback unit 264 reflects the analysis result included in the received second transmission file in the maintenance plan. Specifically, the third feedback unit 264 analyzes the maintenance plan already stored in the plan information memory 252 with the analysis result of the sixth analysis unit 272F (the next inspection time of the battery 58, the replacement time with a new one). The analysis result in the seventh analysis unit 272G (the next inspection time of the target of the radiation source 64, the replacement time for a new one), the analysis result in the eighth analysis unit 272H (the next inspection time of the filter of the radiation source 64, (The time for replacement with a new product), the analysis result in the ninth analysis unit 272I (the next inspection time of the filament of the radiation source 64, the time for replacement with a new product), the analysis result in the tenth analysis unit 272J (the next time after the lamp 71) If it is the first mobile radiography apparatus 22A, the analysis result of the eleventh analyzer 272K (the next inspection time of the cassette 68, the replacement time for a new one), the second movement Type radiation In the case of the shadow device 22B, the analysis result at the twelfth analysis unit 272L (the next inspection time of the image reading device 170, the replacement time for a new one), the analysis result at the thirteenth analysis unit 272M (the next of the moving mechanism 50) The maintenance plan is updated by rewriting it at the inspection time and the replacement time. Then, the mobile radiation imaging apparatus 22 transmits the updated maintenance plan to the server 38 in the management room 32 and records it in the server 38.

  At the stage where the processing in step S127 is completed, the processing at the end of the mobile radiation imaging apparatus 22 ends.

  As described above, according to the present embodiment, it is possible to manage information on the deterioration status of the battery 58 and the usage frequency of consumables at a remote location from information on at least the usage history of the mobile radiography apparatus 22. Moreover, the mobile radiation imaging apparatus 22 can be managed at a remote location.

  In addition, by displaying the analysis result based on at least the usage history information of the mobile radiography apparatus 22 in the imaging plan and the maintenance plan, it is possible to make the engineer recognize the optimal imaging plan in real time. In addition, it is possible to make the engineer know in real time the time to check and replace consumables in the future.

  In particular, in the present embodiment, the number of re-shoots, addition of shooting menus, power consumption, and battery capacity are predicted based on ordering information, engineer information, and subject information that progress in real time. To rebuild the shooting plan. Therefore, even if there is a sudden re-imaging or addition of a radiographing menu, it is possible to quickly cope with it, and the engineer can operate the mobile radiography apparatus with a margin. Further, in the central management unit 14, based on the ordering information, the subject information, and the history information, the ratio of the power consumption per one exposure corresponding to the degree of deterioration of the radiation source and the degree of deterioration of the moving mechanism 50 are determined. The ratio of the power consumption to the unit travel distance and the ratio of the battery capacity when fully charged according to the degree of deterioration of the battery 58 are analyzed. Therefore, the total power consumption derived from the moving route and ordering information included in the imaging plan can be determined as accurately as possible according to the degree of deterioration of the radiation source 64 and the moving mechanism 50, and it is fully charged. The battery capacity at this time can be determined as accurately as possible in accordance with the degree of deterioration of the battery 58, and a reasonable shooting plan can be constructed.

  Further, at the end of the mobile radiography apparatus 22, the inspection time of each part or the new one is changed according to the degree of deterioration of the radiation source 64 (target, filter, filament), the moving mechanism 50, the electronic cassette 68, and the image reading apparatus 170. Therefore, the engineer can easily set the maintenance schedule for the mobile radiography apparatus 22 and set the budget for the mobile radiography apparatus 22. It is possible to concentrate on shooting work.

  Since the central management unit 14 is installed outside the medical institution 12, it can be connected to many medical institutions 12. Therefore, since the engineer information, the subject information / history information, and the like are sent from various medical institutions 12, the central management unit 14 can collect these pieces of information. As a result, each piece of information is statistically analyzed, and an optimal imaging plan (imaging order, route, etc.) can be determined for each medical institution 12. In other words, in statistical analysis, the population can be increased, and variations in predicted values of the same target can be suppressed. In particular, it is useful in the analysis using data mining, can comprehensively analyze from various events, and can provide an optimal predicted value for each mobile radiography apparatus 22.

  Therefore, for example, if the technician's re-shooting rate is recorded and an engineer with a low re-shooting rate is in charge, set a route that can use the battery capacity to the limit, and an engineer with a high re-shooting rate is in charge. In such a case, it is possible to set a path with a sufficient battery capacity. Alternatively, if the subject contains a large number of children (age below a certain threshold), re-imaging may increase due to body movements, so a route with sufficient battery capacity is set. It becomes possible to do. These optimum routes are determined by searching for similarities between information to be taken (engineer information, subject information, history information, etc.) and the same information held in the central management unit 14 and having the highest similarity. It is also possible to present a route similar to the past information.

  In the above-described embodiment, an imaging plan and a maintenance plan are created in advance. This is advantageous in that the mobile radiation imaging apparatus 22 can be operated with its own imaging plan and maintenance plan when communication with the central management unit 14 is interrupted.

  Regarding the maintenance plan, for example, since the central management unit 14 can collect the past parts replacement history and the process leading to it, based on the current usage history of the mobile radiography apparatus 22, By searching for similar usages in the past in the central management unit 14 and obtaining the number of days required for the replacement in that case, it can be predicted as “filament exchange in XX days (forecast)” A system for notifying the medical institution 12 side can be constructed.

  In the present embodiment, when two or more mobile radiography apparatuses 22 are installed in the same medical institution 12, the mobile radiography apparatus 22 to be used is selected by the fourteenth analysis unit 272N. Since the notification is made to the medical institution 12 side, at the beginning of the use of the mobile radiography apparatus 22, the two or more mobile radiography apparatuses 22 are biased so that the deterioration degree becomes average. It can be used without being concentrated on one mobile radiographic apparatus 22. Then, from the stage when all the mobile radiography apparatuses 22 have deteriorated to some extent after the days of use have elapsed, the specific mobile radiography apparatus 22 is not used for emergency, and other mobile radiography apparatuses 22 are used. Therefore, all the mobile radiography apparatuses 22 do not become unusable at almost the same time, and other mobile radiography apparatuses 22 become unusable for repair and inspection. Even in such a case, the emergency mobile radiography apparatus 22 can be used, and the adverse effect that the mobile radiography apparatus 22 cannot be used at all can be prevented.

  In this case, when the ID information of the emergency mobile radiography apparatus 22 is also transmitted from the fourteenth analysis unit 272N, regular maintenance for intensively checking the emergency mobile radiography apparatus 22 Since a check menu at the time is added, by distributing this check menu to the service person, it is possible to perform maintenance so that the emergency mobile radiation imaging apparatus 22 can be used in an emergency. Become.

  In the present embodiment, the central management unit 14 performs analysis processing. For example, only the route selection algorithm unit is distributed from the central management unit 14 to the central computer of the medical institution 12, and the route is determined by the medical institution. Twelve central computers may perform this. Furthermore, a similar algorithm unit may be downloaded to the console 52 of the mobile radiation imaging apparatus 22 and performed by the console 52 of the mobile radiation imaging apparatus 22.

  And the following examples are mentioned as other modifications of this embodiment.

(1) Any one of the first analysis unit 272A to the thirteenth analysis unit 272M installed in the central management unit 14 is installed in the server 38 of the management room 32 or the console control device 80 of the mobile radiography apparatus 22, and how many Such an item may be analyzed on the medical institution 12 side. As a result, even if communication with the central management unit 14 is interrupted, the original shooting plan and maintenance plan are not as accurate as the predicted values from the central management unit 14, but operation has been hindered. It can be constructed with accuracy to the extent that it does not.

(2) Log memory 250, plan information memory 252, information transmission unit 256, analysis result receiving unit 258, first feedback unit 260, second feedback unit 262, third feedback unit 264, guidance installed in console control device 80 The unit 268 may be installed in the server 38 of the management room 32 so that the shooting plan and the maintenance plan can be reconstructed from the server 38. In particular, by installing the guidance unit 268 in the server 38, it is possible to confirm in advance which of the two or more mobile radiation imaging apparatuses 22 should be activated. There are benefits.

(3) For example, at least one of the first feedback unit 260, the second feedback unit 262, and the third feedback unit 264 is installed in the central management unit 14 or the server 38 of the management room 32, and the mobile radiography apparatus 22 is installed. The arithmetic processing in the console control device 80 may be reduced.

(4) The maintenance plan may be set and updated not by the mobile radiation imaging apparatus 22 but by the server 38 in the management room 32. Also in this case, the arithmetic processing in the console control device of the mobile radiation imaging apparatus 22 can be reduced.

(5) The analysis result may be reflected by the central management unit 14 from the creation of the shooting plan and the maintenance plan. The present invention can be easily applied to a small-scale medical institution 12, home photographing in a general home, and radiation photographing in a disaster area.

  In addition, this invention is not limited to embodiment mentioned above, Of course, it can change freely in the range which does not deviate from the main point of this invention.

  For example, since the mobile communication network 20 includes a plurality of base stations 40 that partially overlap the communication range 42, the transmission / reception terminal 108 of the electronic cassette 68 or the transmission / reception terminal 184 of the image reading device 170 is connected to the mobile radiation imaging apparatus 22. The existing communication infrastructure that can be used for wireless transmission / reception, such as a PHS terminal attached to the mobile phone, can be used, and the communication infrastructure between the mobile radiography apparatus 22 and the radiation image information collection facility is improved. Is no longer necessary. Of course, a portable terminal having a radio wave oscillation intensity comparable to that of the PHS terminal can be used. In this case, home radiography can be performed at a general home by the mobile radiography apparatus 22. That is, the imaging site room is not limited to the operating room 30, the hospital room 24, and the examination room 28, and it is possible to perform imaging in a site room other than the imaging room 34, such as a home care room in a general home.

  For example, the radiation detector 46 accommodated in the electronic cassette 68 converts the dose of the incident radiation X directly into an electrical signal by the pixel 138, but instead, the incident radiation X is once visible by a scintillator. After conversion to light, a radiation detector configured to convert the visible light into an electrical signal using a solid detection element such as amorphous silicon (a-Si) may be used (see Japanese Patent No. 3494683). .

  Further, a communication frame (between the base station 40 and the transmission / reception terminal 108 of the electronic cassette 68 or the transmission / reception terminal 184 of the image reading device 170 while shifting the frame transmission timing by one slot using the synchronization signal among all the base stations 40. (Consists of a plurality of slots), and adjacent base stations 40 are arranged using different frequencies so that a part of each communication range 42 overlaps. Then, the first slot in the frame of the next base station 40 is transmitted at the timing of the last slot in the frame of the base station 40 immediately before the electronic cassette 68 (transmission / reception terminal 108) or the image reading device 170 (transmission / reception terminal 184). As described above, while all the base stations 40 perform timing control, the transmission / reception terminal 108 or the transmission / reception terminal 184 not only communicates with the communication frame but also attempts to receive from the other base station 40 in the last slot of the communication frame, and so on. If it can be determined that it is possible to stably communicate with the base station 40, the communication with the central management unit 14 and the server 38 of the management room 32 can be reliably and securely changed by changing the base station 40 to communicate with. It can be carried out.

  When the electronic cassette 68 or the cassette 192 is used in the operating room 30 or the like, there is a risk that blood and other germs may adhere. Therefore, the electronic cassette 68 and the cassette 192 can be used repeatedly by using a structure having waterproofness and airtightness and sterilizing and cleaning as necessary.

  Further, the electronic cassette 68 is more preferably configured as shown in FIG.

  In other words, the guide line 290 serving as a reference for the imaging region and the imaging position is formed on the electronic cassette 68 on the radiation irradiation surface side of the casing 100. Using this guide line 290, the subject such as the subject 66 is positioned with respect to the electronic cassette 68, and the radiation image information can be recorded in an appropriate imaging region by setting the radiation X irradiation range. it can.

  A display unit 292 that displays various types of information related to the electronic cassette 68 is disposed outside the imaging area of the electronic cassette 68. The display unit 292 includes ID information of a subject such as the subject 66 recorded in the electronic cassette 68, the number of times the electronic cassette 68 is used, the cumulative exposure dose, and the state of charge of the battery 106 built in the electronic cassette 68. (Remaining capacity), radiographic image information imaging conditions, positioning image of the subject 66 with respect to the electronic cassette 68, and the like are displayed. In this case, for example, the engineer confirms the subject such as the subject 66 according to the ID information displayed on the display unit 292 and confirms in advance that the electronic cassette 68 is in a usable state. Based on the positioning image, it is possible to position a desired imaging region of a subject such as the subject 66 on the electronic cassette 68 and to perform imaging of optimal radiation image information.

  Further, by forming the handle portion 294 in the electronic cassette 68, the electronic cassette 68 can be easily handled and carried.

  On the side of the electronic cassette 68, an input terminal 296 of an AC adapter, a USB terminal 300 for mounting a USB (Universal Serial Bus) memory 298, and a card slot 304 for mounting a memory card 302 are arranged. It is preferable.

  The input terminal 296 is connected to the AC adapter from the outside when the charging function of the battery 106 built in the electronic cassette 68 is deteriorated or when sufficient time cannot be secured for charging the battery 106. By supplying power, the electronic cassette 68 can be immediately used.

  The USB terminal 300 or the card slot 304 is used when the electronic cassette 68 cannot transmit / receive information via wireless communication to / from external devices such as the console 36 and the server 38 via the base station 40, the mobile communication network 20, and the LAN 18. Can be used. That is, information can be transmitted and received by attaching a USB memory 298 to the USB terminal 300, recording necessary information in the USB memory 298, and then removing the USB memory 298 and attaching it to an external device. Also, information can be transmitted and received by loading the memory card 302 into the card slot 304, recording necessary information on the memory card 302, and then removing the memory card 302 and loading it into an external device.

  As shown in FIG. 21, it is preferable to place a cradle 306 that is loaded with an electronic cassette 68 and charges a built-in battery 106 at necessary places in the operating room 30, the examination room 28, the imaging room 34, and the hospital. It is. In this case, the cradle 306 uses not only the charging of the battery 106 but also the wireless communication function or the wired communication function of the cradle 306 instead of using the transmission / reception terminal 108 of the electronic cassette 68 for power saving of the battery 106. You may make it transmit to the server 38 via the base station 40, the mobile communication network 20, and LAN18. The information to be transmitted and received can include radiation image information recorded on the electronic cassette 68 loaded in the cradle 306.

  In addition, a display unit 308 is provided on the cradle 306, and the display unit 308 displays necessary information including the charged state of the loaded electronic cassette 68 and radiation image information acquired from the electronic cassette 68. Also good.

  Also, a plurality of cradle 306 is connected to LAN 18, and the charging state of electronic cassette 68 loaded in each cradle 306 is collected by console 36 or server 38 via LAN 18, and electronic cassette 68 in a usable charging state is collected. It is also possible to configure so that the location of the can be confirmed.

DESCRIPTION OF SYMBOLS 10 ... Radiation imaging management system 12 ... Medical institution 14 ... Central management part 16 ... Public network 22 ... Mobile radiography apparatus 22A ... 1st mobile radiography apparatus 22B ... 2nd mobile radiography apparatus 24 ... Hospital room 32 ... Management room 38 ... Server 44 ... Dolly 46 ... Radiation detector 48 ... Storage phosphor panel 50 ... Moving mechanism 52 ... Console 54 ... Radiation source control device 56 ... Gradle 58 ... Battery 60 ... Wheel 62 ... Display 64 ... Radiation source 66 ... Subject 68 ... Electronic cassette 71 ... Electric lamp 74 ... Speed sensor 76 ... Position sensor 78 ... Contact sensor 80 ... Console control device 82 ... Transmission / reception unit 84 ... Shooting switch 86 ... Ordering management unit 88 ... ID memory 170 ... Image reading Device 250 ... Log memory 252 ... Plan information memory 254 ... Plan information creation unit 256 ... Send information Unit 258 ... analysis result receiving unit 260 ... first feedback unit 262 ... second feedback unit 264 ... third feedback unit 266 ... capacity update prediction unit 268 ... guidance unit 270 ... information receiving units 272A to 272N ... first analysis unit to first 14 analysis unit 274 ... first analysis result transmission unit 276 ... second analysis result transmission unit 278 ... related information reading unit 280 ... third analysis result transmission unit

Claims (15)

At least one mobile radiography apparatus comprising a battery, a radiation source, and a radiation detection apparatus that detects radiation from the radiation source that has passed through the subject and converts the radiation into radiation image information;
Means for setting an imaging plan for performing radiography with the mobile radiography apparatus based on the supplied imaging conditions;
Information reading means for reading information on at least usage history of the mobile radiation imaging apparatus;
A radiation imaging management system comprising feedback means for reflecting, in the imaging plan, a result of analyzing at least the battery based on at least the read information on the usage history. The radiation imaging management system according to claim 1,
A part of the feedback means is installed at a position away from the mobile radiography apparatus,
An analysis result from the part is transmitted to the mobile radiography apparatus by communication and reflected in the radiographing plan. The radiation imaging management system according to claim 1,
The radiation imaging management system, wherein the information reading unit reads the information at least when an event occurs. The radiation imaging management system according to claim 1,
The radiation imaging management system according to claim 1, wherein the analysis by the feedback means is performed according to the addition of the imaging conditions. The radiation imaging management system according to claim 1,
The radiographic imaging management system characterized in that the analysis by the feedback means is performed based on information relating to an engineer operating the mobile radiography apparatus. The radiation imaging management system according to claim 1,
The radiation imaging management system according to claim 1, wherein the analysis by the feedback means is performed based on information about a subject imaged by the mobile radiography apparatus. The radiation imaging management system according to claim 1,
The radiographic imaging management system characterized in that the analysis by the feedback means is performed based on information relating to a usage history of the mobile radiographic apparatus. The radiation imaging management system according to claim 7,
The radiographic imaging management system according to claim 1, wherein the analysis by the feedback means is performed based on a usage history of the battery. The radiation imaging management system according to claim 1,
The imaging plan includes creation of a moving route including a start point of the mobile radiography apparatus, a point of a subject imaged by the mobile radiography apparatus,
The reflection of the analysis result in the imaging plan by the feedback means includes a change of the moving route. The radiation imaging management system according to claim 1,
further,
Means for setting a maintenance plan for the mobile radiography apparatus;
A radiography management system, comprising: means for reflecting, in the maintenance plan, a result of analysis relating to maintenance of the mobile radiography apparatus based on at least the read information relating to the use history. The radiation imaging management system according to claim 10, wherein
The radiography management system, wherein the maintenance plan includes at least one of an inspection time and a replacement time of parts constituting the mobile radiography apparatus. The radiation imaging management system according to claim 10, wherein
The radiographic imaging management system characterized in that the analysis by the feedback means is performed based on information relating to a usage history of the mobile radiographic apparatus. In a radiography management method for managing at least one mobile radiography apparatus having a battery, a radiation source, and a radiation detection apparatus that detects radiation from the radiation source that has passed through a subject and converts the radiation into radiation image information.
Setting an imaging plan for performing radiography with the mobile radiography apparatus based on the supplied imaging conditions;
Reading information on at least a usage history of the mobile radiography apparatus;
Reflecting the analysis result of at least the battery based on at least the read information on the use history in the imaging plan. In at least one mobile radiography apparatus comprising: a battery; a radiation source; and a radiation detection apparatus that detects radiation from the radiation source that has passed through the subject and converts the radiation into radiation image information.
Means for displaying an imaging plan for performing radiography,
Means for outputting at least information about usage history to the outside at least when an event occurs,
Means for receiving externally analyzed results on at least the battery based on information on the usage history externally;
And a means for reflecting the received analysis result in the imaging plan. The mobile radiography apparatus according to claim 14, wherein
further,
A means of displaying a maintenance plan;
Means for receiving an analysis result of maintenance based on information on the usage history externally;
And a means for reflecting the analysis result of the received maintenance on the maintenance plan.

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