JP5148207B2 - Image processing system, X-ray diagnostic apparatus, image processing program thereof, and image reconstruction apparatus - Google Patents

Description

  The present invention relates to an image processing system, an X-ray diagnostic apparatus, an image processing program thereof, and an image reconstruction apparatus, and in particular, performs an image reconstruction process in an image reconstruction apparatus connected to the X-ray diagnosis apparatus via a network. The present invention relates to an image processing system, an X-ray diagnostic apparatus, an image processing program thereof, and an image reconstruction apparatus that can be performed.

  Medical image diagnosis technology using X-ray diagnostic equipment, MRI (Magnetic Resonance Imaging) equipment, or X-ray CT (Computed Tomography) equipment has made rapid progress with the development of computer technology, and today's medical care Is indispensable.

  Among these medical image diagnostic apparatuses, the X-ray diagnostic apparatus has the oldest history. For example, an X-ray imaging method using this X-ray diagnostic apparatus is well known. In the X-ray imaging method, the amount of X-ray transmitted to the patient (hereinafter referred to as “subject”) from the X-ray generation unit is detected, and the X-ray film is applied according to the detected amount of X-ray transmission. Make it light.

  In recent years, in addition to X-ray imaging, X-ray I.D. I. Digital fluoroscopy (digital fluorography) using (Image Intensifier) has been proposed. In this digital fluoroscopy method, the projection data obtained by irradiating the subject with X-rays generated from the X-ray generation unit and passing through the subject are obtained as X-ray I.D. I. Is converted into an optical image, and the converted optical image is photographed by an X-ray TV camera and converted into an electric signal. Thereafter, the projection data converted into an electric signal is displayed on the display unit as a digital image after A / D conversion. Thus, X-ray I.D. In the digital fluoroscopic imaging method using I, not only real-time imaging, which is impossible with the X-ray film method, is possible, but also projection data can be collected with digital signals, so DA (Digital Angiography) or DSA (DSA) Various image processing such as Digital Subtraction Angiography) has become possible.

  Further, the subject is sequentially irradiated with, for example, cone beam-shaped (conical) X-rays from a plurality of directions by the rotating X-ray generator, and the transmitted X-ray dose is converted into X-ray I.D. I. Alternatively, by using a two-dimensional detector (a flat detector arranged in a two-dimensional matrix), projection data in a wide three-dimensional region is collected, and image reconstruction processing is performed based on the collected projection data. Has been proposed to generate volume data and to generate 3D image data (3D display image data to be displayed on a display unit) based on the generated volume data.

  In a method for generating three-dimensional image data based on volume data, generally, first, projection data in a three-dimensional wide area is collected in an X-ray diagnostic apparatus, and the projection in the collected three-dimensional wide area is first performed. Data is recorded in real time, and arbitrary image processing is performed based on the collected projection data in a wide range of three-dimensional areas, and two-dimensional image data is generated and displayed.

  Next, the collected projection data in a three-dimensional wide area is sent to the image reconstruction apparatus connected to the X-ray diagnostic apparatus via a network, for example, image supplementary information (for example, reconstruction voxel size and reconstruction processing type). Information).

  When transferring projection data in a three-dimensional wide area from the X-ray diagnostic apparatus to the image reconstruction apparatus, it is possible to perform automatic transfer processing immediately after collection or transfer processing as post-processing (post-processing) at an arbitrary timing. Done.

  In the image reconstruction device, image reconstruction processing is performed on the basis of the transferred projection data and image supplementary information in a wide range of three-dimensional areas using pre-registered reconstruction parameters. As a result, volume data Is generated. The generated volume data is transmitted to the 3D workstation via the network, and the 3D workstation performs image processing by a volume rendering method or the like based on the volume data, and generates and displays 3D image data. Based on the MPR (Multi-Planar Reconstruction) method or the like, two-dimensional image data of an arbitrary cross section is generated and displayed.

A technique described in Patent Document 1 is known as a related technique related to a medical image system.
JP 2004-154560 A

  However, in an image reconstruction apparatus connected to an X-ray diagnostic apparatus via a network, 3D-DSA, 3D-DA, and Bone are based on the transferred projection data and image supplementary information in a wide three-dimensional area. Although various image reconstruction processes such as Fusion can be executed, the reconstruction parameters used when executing these image reconstruction processes are independent of the examination region (examination region such as the head and abdomen). Only one set is registered in advance in the image reconstruction device for each reconstruction processing type (for each 3D-DSA, 3D-DA, etc.).

  For this reason, doctors, engineers, etc. (hereinafter referred to as “operators”) manually switch the reconstruction parameters registered in advance in the image reconstruction apparatus so that the optimal reconstruction parameters are set for each examination region. There is a problem that such an operation is very troublesome for the operator.

  In particular, when automatically transferring projection data in a three-dimensional wide area immediately after collection from the X-ray diagnostic apparatus to the image reconstruction apparatus, if the projection data is automatically transferred from the X-ray diagnostic apparatus to the image reconstruction apparatus, Instead, the image reconstruction process is automatically executed using the reconstruction parameters registered in advance in the image reconstruction device (or the reconstruction parameters currently registered after the change). Therefore, when the operator automatically transfers the projection data in the three-dimensional wide area immediately after collection from the X-ray diagnostic apparatus to the image reconstruction apparatus, the image reconstruction process is performed using the optimum reconstruction parameter for each examination region. In order to execute the above, it is necessary to manually switch the reconstruction parameters registered in advance in the image reconstruction apparatus before the inspection.

  Therefore, various information relating to the reconstruction parameter corresponding to the examination region is transmitted from the X-ray diagnostic apparatus to the image reconstruction device via the network, and the reconstruction parameter corresponding to the examination region transmitted by the image reconstruction device. It is also possible to set the reconstruction parameters based on various information.

  However, if the inspection protocol is changed or added thereafter, the data may be changed not only in the X-ray diagnostic apparatus but also in the image reconstruction apparatus, which is troublesome for the operator.

  In addition, the image reconstruction device is often provided in one corner of the examination room or in another room (for example, a machine room), and it is not possible to change the reconstruction parameter on the image reconstruction device for each examination content such as an examination site. Not realistic. For this reason, some operators cannot be said to be optimal for the examination site, but the reconstruction parameters registered in advance in the image reconstruction device are reconstructed in consideration of the trouble of changing the reconstruction parameters. It is thought that many operators are executing the configuration process. As a result, there is a possibility that the image quality of the image displayed on the 3D workstation is somewhat deteriorated, and there is a problem that the performance of the X-ray diagnostic apparatus and the image reconstruction apparatus is not fully exhibited. It was.

  The present invention has been made in view of such circumstances, and provides an image processing system, an X-ray diagnostic apparatus, an image processing program thereof, and an image reconstruction apparatus capable of centrally managing image reconstruction parameters. The purpose is to be able to.

  In order to solve the above-described problems, an image processing system according to the present invention is an X-ray diagnostic apparatus including an X-ray diagnostic apparatus and an image reconstruction apparatus connected to the X-ray diagnostic apparatus via a network. A diagnostic apparatus for detecting transmitted X-rays from a plurality of directions generated from an X-ray generation unit and transmitted through a subject, and acquiring projection data generated based on the detected transmitted X-rays; Generating means for generating image supplementary information used when reconstructing the projection data acquired by the first acquisition means based on a preset inspection protocol; and image supplementary information generated by the generating means. , Storage means for storing in association with the projection data acquired by the acquisition means, and image supplementary information stored by the storage means, together with projection data stored in association with each other Supply means for supplying to an image reconstruction apparatus connected to the X-ray diagnostic apparatus via a network, the image reconstruction apparatus, second acquisition means for acquiring image supplementary information from the X-ray diagnosis apparatus, And generating means for generating volume data by performing image reconstruction using the reconstruction parameters included in the image supplementary information acquired by the second acquisition means.

  The X-ray diagnostic apparatus of the present invention detects transmitted X-rays from a plurality of directions generated from an X-ray generator and transmitted through a subject in order to solve the above-described problems, and based on the detected transmitted X-rays An acquisition unit that acquires the generated projection data, a generation unit that generates image supplementary information used when reconstructing the projection data acquired by the acquisition unit based on a preset inspection protocol, and a generation unit The image supplementary information generated by the storage means is stored in association with the projection data acquired by the acquisition means, and the image supplementary information stored in the storage means is stored together with the projection data stored in association with the X-ray. And a supply unit that supplies the image reconstruction apparatus connected to the diagnostic apparatus via a network.

  In order to solve the above-described problem, the image processing program of the X-ray diagnostic apparatus of the present invention detects transmitted X-rays generated from an X-ray generation unit and transmitted through a plurality of directions, and the detected transmission X An acquisition step for acquiring projection data generated based on a line, and image supplementary information used when reconstructing projection data acquired by the processing of the acquisition step based on a preset inspection protocol are generated A generation step, a storage step of storing the image supplementary information generated by the processing of the generation step in association with the projection data acquired by the acquisition means, and a correlation of the image supplementary information stored by the processing of the storage step A supply step to be supplied to the image reconstruction device connected to the X-ray diagnostic apparatus via a network together with the stored projection data. Characterized in that to execute the door to the computer.

In order to solve the above-described problem, the image reconstruction apparatus of the present invention reconstructs projection data over a three-dimensional region from an X-ray diagnostic apparatus connected to the image reconstruction apparatus via a network. An acquisition unit that acquires image supplementary information to be used, a generation unit that performs image reconstruction using the reconstruction parameters included in the image supplementary information acquired by the acquisition unit and generates volume data, and a three-dimensional region An acquisition unit that acquires input data related to a recommended reconstruction parameter that is a recommended reconstruction parameter among the reconstruction parameters used when reconstructing projection data over a wide range, and a recommended reconstruction parameter acquired by the acquisition unit Setting means for setting recommended reconfiguration parameters based on input data, and recommended reconfiguration parameters set by the setting means Characterized in that it comprises storage means for storing a recommended reconstruction parameters setting data is set data relating meter, the.

  In the image processing system of the present invention, an X-ray diagnostic apparatus, and an image reconstruction apparatus connected to the X-ray diagnostic apparatus via a network, the X-ray diagnostic apparatus includes an X-ray generator. X-rays transmitted from a plurality of directions generated from the subject and detected from a plurality of directions are detected, and projection data generated based on the detected transmitted X-rays is acquired and acquired based on a preset inspection protocol. Image supplementary information used when reconstructing the projection data is generated, the generated image supplementary information is stored in association with the acquired projection data, and the stored image supplementary information is stored in association with each other. Along with the projection data, it is supplied to an image reconstruction device connected to the X-ray diagnostic apparatus via a network. Information is obtained by using the reconstruction parameters included in the obtained image accompanying information, image reconstruction is performed, the volume data is generated.

  In the X-ray diagnostic apparatus of the present invention and the image processing program thereof, transmitted X-rays generated from an X-ray generation unit and transmitted through a subject are detected and generated based on the detected transmitted X-rays. Projection data is acquired, and image supplementary information used when reconstructing the acquired projection data is generated based on a preset inspection protocol, and the generated image supplementary information is added to the acquired projection data. The image supplementary information stored and stored in association is supplied to the image reconstruction device connected to the X-ray diagnostic apparatus via the network together with the projection data stored in association.

  In the image reconstruction apparatus of the present invention, image supplementary information used when reconstructing projection data over a three-dimensional region is acquired from an X-ray diagnostic apparatus connected to the image reconstruction apparatus via a network. Then, image reconstruction is performed using the reconstruction parameters included in the acquired image supplementary information, and volume data is generated.

  According to the present invention, it is possible to centrally manage image reconstruction parameters.

  Embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows the overall configuration of an image processing system 1 according to the present invention.

  As shown in FIG. 1, in an image processing system 1, an X-ray diagnostic apparatus 2 according to the present invention for collecting projection data in a wide three-dimensional region and displaying a two-dimensional image based on the two-dimensional image data, An image reconstruction apparatus 3 according to the present invention that performs image reconstruction processing based on projection data supplied from the X-ray diagnostic apparatus 2, and a work according to the present invention that generates and displays a three-dimensional image based on three-dimensional image data A station 4 is connected via a network 5.

  A personal computer 6 applicable to the information processing apparatus according to the present invention is a three-dimensional wide range collected from the X-ray diagnostic apparatus 2 via an external recording medium (for example, a DVD (Digital Versatile Disc) 7). Projection data in a specific region is acquired, and various image processing is performed based on the acquired projection data in a wide three-dimensional region.

  FIG. 2 shows an external configuration of the imaging system of the X-ray diagnostic apparatus 2 of FIG.

  As shown in FIG. 2, the X-ray diagnostic apparatus 2 includes an X-ray generation unit 11 a and an X-ray detection unit 12 a that are arranged so as to sandwich a subject (not shown) placed on a top plate 14 on a bed. And a second imaging system having an X-ray generation unit 11b and an X-ray detection unit 12b. The X-ray generation unit 11a is located near the end of the first holding mechanism 13a. The X-ray generator 11b is fixed in the vicinity of the end of the second holding mechanism 13b.

  FIG. 3 shows an internal configuration of the X-ray diagnostic apparatus 2 of FIG. In addition, the same code | symbol is attached | subjected about the thing corresponding to the structure of FIG.

  As shown in FIG. 3, the X-ray diagnostic apparatus 2 has a high voltage necessary for X-ray irradiation in the X-ray generation units 11 a and 11 b that irradiate the subject P with X-rays and the X-ray generation units 11 a and 11 b. Are provided with a high voltage generator 15 and X-ray detectors 12a and 12b for detecting projection data transmitted through the subject P.

  The X-ray generation unit 11 a includes an X-ray tube 16 that irradiates the subject P with X-rays, and an X-ray diaphragm 17 that forms a cone beam with respect to the X-rays irradiated from the X-ray tube 16. The X-ray tube 16 is a vacuum tube that generates X-rays, and accelerates electrons emitted from a cathode (filament) by a high voltage to collide with a tungsten anode to generate X-rays. The X-ray diaphragm 17 is located between the X-ray tube 16 and the subject P, and narrows the X-ray beam irradiated from the X-ray tube 16 to an irradiation range of a predetermined size in the X-ray detectors 12a and 12b. . The same applies to the configuration of the X-ray generator 11b, and the description thereof will be omitted because it will be repeated.

  The X-ray detection unit 12a is configured to output the X-ray I.D. I. 18, an X-ray television camera 19, and an A / D converter 20. X-ray I. 18 converts X-rays transmitted through the subject P into visible light, and further performs luminance multiplication in the process of light-electron-light conversion to generate sensitive projection data, and the generated optical The projection data is supplied to the X-ray television camera 19. On the other hand, the X-ray TV camera 19 has an X-ray I.D. I. The optical projection data supplied from 18 is converted into an electrical signal using a CCD (Charge Coupled Device) imaging device, and the converted electrical signal is supplied to the A / D converter 20. The A / D converter 20 converts the time-series electric signal supplied from the X-ray television camera 19 into a digital signal, and supplies the converted digital signal to the control unit 23 via the bus 37. The same applies to the configuration of the X-ray detection unit 12b, and the description thereof will be omitted because it will be repeated.

  The X-ray detectors 12a and 12b are connected to the X-ray I.D. I. 18 is used, however, as shown in FIG. 4, for example, a two-dimensional X-ray detector in which X-ray detection elements are two-dimensionally arranged may be used.

  FIG. 4 shows the configuration of the X-ray detectors 12a and 12b when a two-dimensional X-ray detector is used.

  As shown in FIG. 4, the X-ray detectors 12a and 12b include two-dimensional X-ray detectors 38 that detect X-rays by means of two-dimensional matrix arrangements of X-ray detectors and convert them into electrical signals, A DAS (Data Acquisition System) 39 that collects X-ray detection data detected as an electrical signal in the X-ray detection element, generates A / D conversion, logarithmic conversion, and the like to generate projection data.

  Returning to FIG. 3, the high voltage generation unit 15 controls the X-ray irradiation conditions such as the tube current, the tube voltage, and the irradiation time in the high voltage generator 22 according to the control of the control unit 23, In order to accelerate the thermal electrons generated from the cathode of the X-ray tube 16, a high voltage generator for generating a high voltage applied between the anode and the cathode is provided.

  The control unit 23, the storage unit 24, the input unit 25, the display unit 25, the communication unit 27, and the drive 28 are connected to each other by a bus 38.

  The control unit 23 includes a CPU (Central Processing Unit) 33, a ROM (Read Only Memory) 34, a RAM (Random Access Memory) 35, an image memory 36, and the like. The CPU 33 is a program or storage unit stored in the ROM 34. Various processes are executed in accordance with various application programs loaded from 24 to the RAM 35, and various control signals are generated and supplied to the respective units to control the driving of the X-ray diagnostic apparatus 2 as a whole.

  The RAM 35 appropriately stores data necessary for the CPU 33 to execute various processes. The image memory 36 stores projection data supplied from the X-ray detection units 12a and 12b, two-dimensional image data generated based on the projection data, and the like. The image memory 36 appropriately stores image data acquired via the network 5 and supplies it to each unit as necessary.

  The storage unit 24 includes, for example, an HDD (Hard Disc Drive) and the like, and includes various application programs for executing a scan sequence, image generation / display processing, diagnostic information (patient ID, doctor's findings, etc.), diagnostic protocols, and the like. Stores data groups. The storage unit 24 stores various image data supplied from the image memory 36 of the control unit 23 as necessary. The storage unit 24 can transfer (transmit) various data to an external device (for example, the image reconstruction device 3 or the workstation 4) via the network 5 as necessary.

  The input unit 25 has input devices such as a display panel (not shown) for inputting various instructions of the operator on the operation panel, a trackball, various operation switches, various buttons, a mouse, and a keyboard. Information on the subject P, input of various commands, optimum X-ray irradiation conditions for the organ to be imaged (for example, tube voltage applied to the X-ray tube 16, tube current, X-ray irradiation time, etc.), etc. It is used for the operator to input various data.

  The display unit 26 is provided with an LCD (Liquid Crystal Display) (not shown) and a CRT (Cathode Ray Tube) (not shown), and acquires two-dimensional image data stored in the image memory 36 or the storage unit 24. Then, a predetermined TV format conversion process or the like is performed on the acquired two-dimensional image data, and a two-dimensional image based on the two-dimensional image data after the predetermined TV format conversion process is displayed.

  The communication unit 27 includes a modem, a terminal adapter, a network interface (all not shown), and the like, and performs communication processing via the network 5.

  The drive 28 includes a magnetic disk 29 (including a floppy disk), an optical disk 30 (including a CD-ROM (Compact Disk-Read Only Memory), a DVD (Digital Versatile Disk)), and a magneto-optical disk 31 (MD (Mini-Disk). )), Or a semiconductor memory 32 or the like is appropriately mounted, and then a read computer program is installed in the storage unit 24 as necessary, and the image data stored in the image memory 36 or the storage unit 24 is These are recorded as necessary.

  FIG. 5 shows the internal configuration of the image reconstruction apparatus 3 according to the present invention.

  As shown in FIG. 5, the CPU 41 executes various processes according to a program stored in the ROM 42 or a program loaded from the storage unit 48 to the RAM 43.

  The RAM 43 also appropriately stores data necessary for the CPU 41 to execute various processes.

  The CPU 41, the ROM 42, and the RAM 43 are connected to each other via a bus 44. An input / output interface 45 is also connected to the bus 44.

  The input / output interface 45 includes an input unit 46 including a keyboard and a mouse, a display including a CRT (Cathode Ray Tube) and an LCD (Liquid Crystal Display), an output unit 47 including a speaker, a hard disk, a nonvolatile memory, and the like. A communication unit 49 including a storage unit 48 including a modem, a terminal adapter, and a network interface (all not shown) is connected.

  The communication unit 49 performs communication processing via the network 5.

  A drive 50 is connected to the input / output interface 45 as necessary, and includes a magnetic disk 51 (including a floppy disk), an optical disk 52 (CD-ROM (Compact Disk-Read Only Memory)), and a DVD (Digital Versatile Disk). ), A magneto-optical disk 53 (including MD (Mini-Disk)), a semiconductor memory 54, or the like is appropriately mounted, and then a read computer program is installed in the storage unit 58 as necessary.

  FIG. 6 shows the internal configuration of the workstation 4 according to the present invention. Note that the internal configuration of the workstation 4 described with reference to FIG. 6 is basically the same as the internal configuration of the image reconstruction device 3 described with reference to FIG. Omitted.

  FIG. 7 shows an internal configuration of the personal computer 6 applicable to the information processing apparatus according to the present invention. The internal configuration of the personal computer 6 described with reference to FIG. 7 is basically the same as the internal configuration of the image reconstruction device 3 described with reference to FIG. 5, and the description thereof will be repeated. Omitted.

  FIG. 8 shows a functional configuration that can be executed by the X-ray diagnostic apparatus 2 of FIG.

  The image processing unit 101 sequentially acquires projection data in the three-dimensional wide area supplied from the X-ray detection units 12a and 12b, and supplies the acquired projection data in the three-dimensional wide area to the image memory 106. . The image processing unit 101 reads an application program for generating the two-dimensional image data stored in the auxiliary storage unit 102, and executes and acquires the application program for generating the read two-dimensional image data. Two-dimensional image data is generated based on the projection data in the three-dimensional wide area, and the generated two-dimensional image data is supplied to the image memory 106.

  The auxiliary storage unit 102 includes, for example, the storage unit 24 in FIG. 3 and the like, and stores in advance an application program for generating two-dimensional image data, and also includes an examination part (examination part such as the head and abdomen) and reconfiguration. An inspection protocol group corresponding to each processing type (such as 3D-DSA or 3D-DA) is stored in advance, and is supplied to each unit as necessary. The auxiliary storage unit 102 acquires the two-dimensional image data supplied from the image memory 106, the projection data in a wide three-dimensional region, and the image supplementary information associated therewith, and acquires the acquired two-dimensional image data, Projection data in a three-dimensional wide area and image supplementary information associated therewith are stored.

  The operation input control unit 103 acquires various data input when the input unit 25 is operated by an operator, and supplies the acquired various data to each unit of the X-ray diagnostic apparatus 2.

  The inspection protocol setting unit 104 acquires inspection protocol input data, which is input data related to the inspection protocol, which is input when the input unit 25 is operated by the operator via the operation input control unit 103, and the auxiliary storage unit 102. The test protocol group stored in the X-ray diagnostic apparatus 2 is set based on the acquired test protocol input data with reference to the read test protocol group and set. Inspection protocol setting data, which is setting data relating to the inspection protocol, is supplied to the image supplementary information generation unit 105.

  The inspection protocol setting data includes data relating to the reconstruction processing type and the optimal reconstruction parameter preset for the reconstruction type.

  The image-accompanying information generation unit 105 acquires the inspection protocol setting data supplied from the inspection protocol setting unit 104 as necessary, and performs the reconstruction processing type and the reconstruction parameter (therefore, its included in the acquired inspection protocol setting data) Generates image supplementary information used when reconstructing projection data in a wide three-dimensional area with the image reconstruction device 3 or the like based on the optimal reconstruction parameters set in advance according to the reconstruction processing type Then, the generated image supplementary information is supplied to the auxiliary storage unit 102 and the image memory 106.

  The image supplementary information includes data relating to the reconstruction processing type and the optimal reconstruction parameter preset for the reconstruction type.

  The image memory 106 includes, for example, the image memory 36 shown in FIG. 3 and the like, acquires projection data in a three-dimensional wide area supplied from the image processing unit 101, and obtains the acquired projection data in a three-dimensional wide area. In addition to storing, the two-dimensional image data supplied from the image processing unit 101 is acquired, and the acquired two-dimensional image data is stored. Further, the image memory 106 acquires the image supplementary information supplied from the image supplementary information generation unit 105, and stores the acquired image supplementary information in association with the stored projection data in a three-dimensional wide area. .

  Further, the image memory 106 appropriately supplies the stored two-dimensional image data to the auxiliary storage unit 102 and the display control unit 107, and stores the projection data in a wide range of the three-dimensional region stored therein and associated with them. The image supplementary information is supplied to the auxiliary storage unit 102 and the communication control unit 108.

  The display control unit 107 sequentially acquires the two-dimensional image data supplied from the image memory 106 and causes the display unit 26 to display a two-dimensional image based on the acquired two-dimensional image data.

  The communication control unit 108 controls the communication unit 27 to communicate various data via the network 5. For example, the communication control unit 108 reads the projection data in the three-dimensional wide area stored in the image memory 106 and the image supplementary information associated therewith, and the read projection data in the three-dimensional wide area read out. The image supplementary information associated therewith is supplied to the image reconstruction device 3 via the communication unit 27.

  The reading unit 109 reads and reads the projection data in the wide three-dimensional region stored in the auxiliary storage unit 102 and the image supplementary information associated therewith under the control of the operation input control unit 103. Projection data in a wide range of dimensions and image supplementary information associated therewith are supplied to the writing unit 110.

  The writing unit 110 acquires the projection data in the three-dimensional wide area supplied from the reading unit 98 and the image supplementary information associated therewith, and the obtained projection data in the three-dimensional wide area and the acquired projection data. The associated image supplementary information or the like is written to the external recording medium 7 such as the magnetic disk 29, the optical disk 30, the magneto-optical disk 31, or the semiconductor memory 32 via the driver 28.

  FIG. 9 shows a functional configuration that can be executed by the image reconstruction device 3 of FIG.

  The communication control unit 111 controls the communication unit 49 to communicate various data via the network 5. For example, the communication control unit 111 acquires projection data in a three-dimensional wide area supplied from the X-ray diagnostic apparatus 2 via the network 5 and image supplementary information associated therewith, and acquires the acquired three-dimensional Projection data in a wide area and image supplementary information associated therewith are supplied to the image reconstruction unit 112.

  Further, the communication control unit 111 reads the volume data generated by the reconfiguration stored in the main storage unit 113 and supplies the read volume data to the workstation 4 via the communication unit 49.

  The image reconstruction unit 112 acquires the projection data in the three-dimensional wide area supplied from the communication control unit 111 and the image supplementary information associated therewith, and is acquired using the acquired image supplementary information. Volume data is generated based on projection data in a three-dimensional wide area, and the generated volume data is sequentially supplied to the main storage unit 113.

  The main storage unit 113 acquires the volume data supplied from the image reconstruction unit 112, stores the acquired volume data, and appropriately supplies the stored volume data to the communication control unit 111.

  FIG. 10 shows a functional configuration that can be executed by the workstation 4 of FIG.

  The communication control unit 114 controls the communication unit 69 to communicate various data via the network 5. For example, the communication control unit 114 acquires the volume data supplied from the image reconstruction device 3 via the network 5 and supplies the acquired volume data to the display image data generation unit 115.

  The display image data generation unit 115 acquires the volume data supplied from the communication control unit 114, and generates three-dimensional image data by performing image processing by, for example, a volume rendering method based on the acquired volume data. Or by performing image processing using the MPR (Multi-Planar Reconstruction) method, etc., two-dimensional image data of an arbitrary cross section is generated, and the generated three-dimensional display image data or two-dimensional image data of an arbitrary cross section is generated. Is supplied to the main storage unit 116.

  The main storage unit 116 acquires the three-dimensional image data and the arbitrary cross-sectional two-dimensional image data supplied from the display image data generation unit 115, and the acquired three-dimensional image data and the arbitrary cross-sectional two-dimensional image data. Remember. The main storage unit 116 supplies the stored 3D image data and 2D image data of an arbitrary cross section to the display control unit 117 as necessary.

  The display control unit 117 acquires the three-dimensional image data and the arbitrary two-dimensional image data supplied from the main storage unit 116, and the three-dimensional image and the arbitrary two-dimensional image based on the acquired three-dimensional image data. A two-dimensional image based on the image data is displayed on the output unit 67.

  Next, image supplementary information supply processing in the X-ray diagnostic apparatus 2 of FIG. 8 will be described with reference to the flowchart of FIG. This image-accompanying information supply process is started when an instruction is given to start the X-ray imaging process by the operator operating the input unit 25 of the X-ray diagnostic apparatus 2.

  First, when the operator starts the X-ray imaging process by operating the input unit 25 of the X-ray diagnostic apparatus 2, the operator sets the examination protocol to be executed in the X-ray diagnostic apparatus 2 by operating the input unit 25. Let

  In step S1, the inspection protocol setting unit 104 acquires inspection protocol input data, which is input data related to the inspection protocol, which is input by operating the input unit 25 by the operator via the operation input control unit 103. The examination protocol group stored in the auxiliary storage unit 102 is read out, and the examination protocol implemented in the X-ray diagnostic apparatus 2 is referred to based on the obtained examination protocol input data with reference to the examination protocol group read out. Set.

  For example, as shown in FIG. 12, a reconstruction parameter optimum for the reconstruction processing type (for example, 3D-DSA or 3D-DA) is set for each inspection protocol. For example, the optimum reconstruction parameter 1 for the reconstruction process type 1 is set. Hereinafter, similarly, the optimum reconstruction parameter 2 is set for the reconstruction process type 2, and the optimum reconstruction parameter 3 for the reconstruction process type 3 is sequentially set. Is set.

  Of course, the optimum reconstruction parameter may be set to a different parameter depending on the type of reconstruction of the set examination protocol depending on whether the subject P is an adult or a child, or even between adults due to differences in physique. .

  The reconstruction parameters include various parameters relating to, for example, the shape of the processing space during the reconstruction process, the processing space size during the reconstruction process, and the reconstruction space center information. Of course, the reconstruction parameters can include not only such parameters, but also any parameters used when the projection data in a wide three-dimensional area is reconstructed by the image reconstruction device 3 or the like.

  When the operator operates the input unit 25 to cause the X-ray diagnostic apparatus 2 to set an examination protocol including the reconstruction parameters, the X-ray diagnostic apparatus 2 sets the optimal reconstruction parameters for all the reconstruction processing types in advance. The X-ray diagnostic apparatus 2 may be configured to set a reconstruction parameter that is optimal for the type of reconstruction processing of the examination protocol to be performed each time.

  In addition, since the amount of X-ray transmission varies depending on the region of the subject P to be examined, for example, as shown in FIG. 13, a plurality of examination protocols for the examination region (examination region such as the head and abdomen) are used. May be assigned to the X-ray diagnostic apparatus 2 in accordance with the examination protocol for each examination part (examination part such as the head and abdomen).

  The inspection protocol setting unit 104 supplies inspection protocol setting data, which is setting data regarding the set inspection protocol, to the image supplementary information generation unit 105. The inspection protocol setting data includes data relating to the reconstruction processing type and the optimal reconstruction parameter preset for the reconstruction type.

  Next, in step S <b> 2, the X-ray generation unit 11 a generates X-rays and irradiates the subject P under the control of the control unit 23. Specifically, the X-ray tube 16 of the X-ray generation unit 11a accelerates electrons emitted from the cathode (filament) by a high voltage, collides with a tungsten anode, generates X-rays, and emits X-rays. The X-ray restrictor 17 of the unit 11a narrows the X-ray beam irradiated from the X-ray tube 16 to an irradiation range of a predetermined size in the X-ray detection units 12a and 12b. The same applies to the X-ray generator 11b, and the description thereof will be omitted because it will be repeated.

  In step S3, the X-ray I.D. I. 18 converts X-rays transmitted through the subject P into visible light according to the control of the control unit 23, and further performs brightness multiplication in the process of light-electron-light conversion to generate highly sensitive projection data. To do. X-ray I.D. I. 18 supplies the generated optical projection data to the X-ray television camera 19. Next, the X-ray television camera 19 is connected to the X-ray I.D. I. The optical projection data supplied from 18 is converted into an electrical signal using a CCD (Charge Coupled Device) imaging device, and the converted electrical signal is supplied to the A / D converter 20. The A / D converter 20 converts the time-series electric signal supplied from the X-ray television camera 19 into a digital signal, and supplies the converted digital signal to the control unit 23 via the bus 37. The same applies to the X-ray detector 12b, and the description thereof will be omitted because it will be repeated.

  In step S4, the image processing unit 101 sequentially acquires projection data in a three-dimensional wide area supplied from the X-ray detection units 12a and 12b, and the acquired projection data in the three-dimensional wide area is stored in an image memory. 106.

  In step S <b> 5, the image processing unit 101 reads an application program for generating the two-dimensional image data stored in the auxiliary storage unit 102 and also generates an application program for generating the read two-dimensional image data. The two-dimensional image data is generated on the basis of the acquired projection data in a wide three-dimensional region, and the generated two-dimensional image data is supplied to the image memory 106.

  In step S6, the image memory 106 acquires the projection data in the three-dimensional wide area supplied from the image processing unit 101, stores the acquired projection data in the three-dimensional wide area, and stores the projection data in the image processing unit. The two-dimensional image data supplied from 101 is acquired, and the acquired two-dimensional image data is stored.

  In step S7, the image supplementary information generation unit 105 acquires the inspection protocol setting data supplied from the inspection protocol setting unit 104, and executes the reconstruction process type and the reconstruction parameter (the reconfiguration parameters included in the acquired inspection protocol setting data). Generates image supplementary information used when reconstructing projection data in a wide three-dimensional area with the image reconstruction device 3 or the like based on the optimal reconstruction parameter set in advance according to the configuration processing type) To do.

  For example, when the inspection protocol shown in FIG. 12 is set, the image supplementary information used when the image reconstruction device 3 or the like reconstructs projection data in a three-dimensional wide area is shown in FIG. Such image supplementary information is generated. This image supplementary information includes the reconstruction processing type and the optimal reconstruction parameters set in advance for the reconstruction type (for example, the processing space shape during the reconstruction processing, the processing space size during the reconstruction processing, and the reconstruction size). Data on various parameters related to the configuration space center information, etc.).

  The image supplementary information generation unit 105 supplies the generated image supplementary information to the auxiliary storage unit 102 and the image memory 106.

  In step S8, the image memory 106 acquires the image supplementary information supplied from the image supplementary information generation unit 105, and associates the acquired image supplementary information with the already stored three-dimensional projection data in a wide area. Remember.

  In step S <b> 9, the communication control unit 108 controls the communication unit 27 to read and read projection data in a wide three-dimensional region stored in the image memory 106 and image supplementary information associated therewith. Projection data in a wide three-dimensional region and image supplementary information associated therewith are supplied to the image reconstruction device 3 via the communication unit 27.

  Thus, for example, when automatically transferring (supplying) projection data in a three-dimensional wide area immediately after collection from the X-ray diagnostic apparatus 2 to the image reconstruction apparatus 3 via the network 5, the acquired three-dimensional wide area is obtained. It is possible to transfer (suppli) after associating not only the projection data in this area but also the image supplementary information including the reconstruction parameter optimum for the reconstruction processing type of the implemented inspection protocol.

  The image reconstruction process in the image reconstruction device 3 in FIG. 9 will be described with reference to the flowchart in FIG. This image reconstruction process is started by obtaining projection data in a wide three-dimensional region supplied from the X-ray diagnostic apparatus 2 via the network 5 and image supplementary information associated therewith.

  In step S <b> 21, the communication control unit 111 controls the communication unit 49 to display the projection data in the three-dimensional wide area supplied from the X-ray diagnostic apparatus 2 via the network 5 and the image supplementary information associated therewith. The acquired projection data in the three-dimensional wide area and the image supplementary information associated therewith are supplied to the image reconstruction unit 112.

  In step S <b> 22, the image reconstruction unit 112 acquires projection data in a three-dimensional wide area supplied from the communication control unit 111 and image supplementary information associated therewith, and is included in the acquired image supplementary information. Reconfiguration parameters that are optimal for the type of reconfiguration processing of the implemented inspection protocol (for example, various parameters related to the processing space shape during reconfiguration processing, the processing space size during reconfiguration processing, reconfiguration space center information, etc. Etc.), image reconstruction is performed based on the acquired projection data in a wide three-dimensional region, and volume data is generated.

  The image reconstruction unit 112 sequentially supplies the generated volume data to the main storage unit 113.

  In step S23, the main storage unit 113 acquires the volume data supplied from the image reconstruction unit 112, stores the acquired volume data, and appropriately supplies the stored volume data to the communication control unit 111. .

  In step S <b> 24, the communication control unit 111 reads the volume data generated by the reconfiguration stored in the main storage unit 113 and supplies the read volume data to the workstation 4 via the communication unit 49.

  Next, the three-dimensional image display process in the workstation 4 in FIG. 10 will be described with reference to the flowchart in FIG.

  In step S31, the communication control unit 114 controls the communication unit 69 to acquire the volume data supplied from the image reconstruction device 3 via the network 5, and the acquired volume data is displayed in the display image data generation unit 115. Supply.

  In step S32, the display image data generation unit 115 acquires the volume data supplied from the communication control unit 114, and performs image processing by, for example, a volume rendering method based on the acquired volume data. Data is generated, or two-dimensional image data of an arbitrary cross section is generated by performing image processing by an MPR (Multi-Planar Reconstruction) method or the like, and the generated three-dimensional display image data or 2 of an arbitrary cross section is generated. The dimensional image data is supplied to the main storage unit 116.

  In step S <b> 33, the main storage unit 116 acquires the 3D image data supplied from the display image data generation unit 115 and the 2D image data of an arbitrary cross section, and acquires the acquired 3D image data and 2 of the arbitrary cross section. Dimensional image data is stored. The main storage unit 116 supplies the stored 3D image data and 2D image data of an arbitrary cross section to the display control unit 117 as necessary.

  In step S34, the display control unit 117 acquires the 3D image data supplied from the main storage unit 116 and the 2D image data of an arbitrary cross section, and the 3D image based on the acquired 3D image data A two-dimensional image based on the two-dimensional image data of the cross section is displayed on the output unit 67.

  In the embodiment of the present invention, image supplementary information used when image reconstruction is performed in the image reconstruction device 3 is generated based on a preset inspection protocol, and the generated image supplementary information is converted into a three-dimensional image. Since the projection data and the image supplementary information in the three-dimensional wide area stored in association with each other are stored (associated) with the projection data in the wide area, the image reconstruction apparatus 3 is supplied (transferred). It is not necessary to manage the reconstruction parameters in the image reconstruction device 3 connected to the X-ray diagnostic device 2 via the network 5, and when the image reconstruction device 3 performs the image reconstruction, the examination region and the examination content are changed. The optimum image reconstruction parameters can be used. Thereby, the reconstruction parameter can be managed in an integrated manner. Further, the operator does not need to manually switch the reconstruction parameters registered in advance in the image reconstruction device, and the operability and convenience when performing image reconstruction in the image reconstruction device 3 can be improved. In addition, a suitable display image can be provided to the operator at the workstation 4. Therefore, the performance of the X-ray diagnostic apparatus 2 and the image reconstruction apparatus 3 can be fully exhibited.

  In FIG. 12 and FIG. 13, the optimum reconstruction parameter is set for each reconstruction processing type supported by one inspection protocol, and the image supplementary information is generated based on the set inspection protocol. For example, as shown in FIG. 17, an optimal reconstruction parameter may be set for each imaging program constituting the inspection protocol. Of course, with respect to the inspection protocol and imaging program set in advance in the X-ray diagnostic apparatus 2, updates such as addition, deletion, and change are appropriately executed, and thereafter, based on the updated inspection protocol such as addition and deletion. Thus, the image supplementary information is generated. As a result, even if the inspection protocol is changed or added, it is not necessary to change data in the image reconstruction device 3, and as a result, there is no troublesome operation for the operator. Can be improved.

  By the way, when the projection data in the three-dimensional wide area is exported from the X-ray diagnostic apparatus 2 and is imported into the external information processing apparatus such as the personal computer 6, for example, the projection data in the three-dimensional wide area are included. You may make it EXPPORT the image supplementary information memorize | stored linked | related. Hereinafter, the writing process in the X-ray diagnostic apparatus 2 of FIG. 8 using this method will be described.

  The writing process in the X-ray diagnostic apparatus 2 in FIG. 8 will be described with reference to the flowchart in FIG. This writing process is started when an instruction is given to start the writing process by operating the input unit 25 by the operator.

  In step S41, the operation input control unit 103 determines whether or not an instruction to start the writing process is given by the operator operating the input unit 25, and writing is performed by operating the input unit 25 by the operator. Wait until it is determined that an instruction to start processing has been issued.

  If it is determined in step S41 that the operator has operated the input unit 25 to instruct the start of the writing process, the reading unit 109 performs the auxiliary storage unit 102 in step S42 according to the control of the operation input control unit 103. The projection data in the three-dimensional wide area and the image supplementary information associated therewith are read out, and the read projection data in the three-dimensional wide area and the image supplementary information associated therewith are read out. Are supplied to the writing unit 110.

  In step S <b> 43, the writing unit 110 acquires the projection data in the three-dimensional wide area supplied from the reading unit 98 and the image supplementary information associated therewith, and the projection in the acquired three-dimensional wide area. Data and image supplementary information associated therewith are written to the external recording medium 7 such as the magnetic disk 29, the optical disk 30, the magneto-optical disk 31, or the semiconductor memory 32 via the driver 28.

  As a result, together with projection data in a three-dimensional wide area and stored in association with these in the external recording medium 7, for example, the magnetic disk 29, the optical disk 30, the magneto-optical disk 31, or the semiconductor memory 32. Information can be exported, and projection data in a wide three-dimensional area and image supplementary information associated therewith can be imported to the personal computer 6 via these external recording media 7. Accordingly, when image reconstruction is performed in the personal computer 6 which is an external information processing apparatus, not in the image reconstruction apparatus 3, it is possible to use optimal image reconstruction parameters in accordance with the examination region and examination contents. Variations in processing results such as volume data obtained by each piece of hardware that performs configuration processing can be suppressed.

  By the way, since image supplementary information is not associated with projection data over a wide range of three-dimensional areas acquired from the X-ray diagnostic apparatus 2 by the image reconstruction apparatus 3 by the conventional technique, the image reconstruction apparatus 3 performs image reconstruction. There may be cases where configuration is not possible. Therefore, the recommended reconstruction which is a reconstruction parameter recommended in advance for the image reconstruction device 3 so that the image reconstruction device 3 can perform suitable image reconstruction while ensuring compatibility with the conventional technology. Configuration parameters may be set.

  FIG. 19 shows another functional configuration that can be executed by the image reconstruction device 3 of FIG. Note that components corresponding to those in FIG. 9 are given the same reference numerals, and the description thereof will be omitted to avoid repetition.

  The auxiliary storage unit 102 includes, for example, the storage unit 24 in FIG. 3 and the like, and stores in advance an application program for generating two-dimensional image data, and also includes an examination part (examination part such as the head and abdomen) and reconfiguration An inspection protocol group corresponding to each processing type (such as 3D-DSA or 3D-DA) is stored in advance, and is supplied to each unit as necessary. The auxiliary storage unit 102 acquires the two-dimensional image data supplied from the image memory 106, the projection data in a wide three-dimensional region, and the image supplementary information associated therewith, and acquires the acquired two-dimensional image data, Projection data in a three-dimensional wide area and image supplementary information associated therewith are stored.

  The operation input control unit 118 acquires various data input by operating the input unit 46 by an operator, and supplies the acquired various data to each unit of the image reconstruction device 3.

  The recommended reconfiguration parameter input data acquisition unit 119 receives recommended reconfiguration parameter input data, which is input data related to the recommended reconfiguration parameter, which is input by operating the input unit 25 by the operator via the operation input control unit 118. The acquired recommended reconstruction parameter input data is supplied to the recommended reconstruction parameter setting unit 120.

  The recommended reconfiguration parameter setting unit 94 acquires the recommended reconfiguration parameter input data supplied from the recommended reconfiguration parameter input data acquisition unit 119, and sets the recommended reconfiguration parameter based on the acquired recommended reconfiguration parameter input data. The recommended reconfiguration parameter setting data, which is setting data related to the set recommended reconfiguration parameter, is supplied to the auxiliary storage unit 121.

  The auxiliary storage unit 121 includes, for example, the storage unit 48 in FIG. 5, acquires the recommended reconfiguration parameter setting data supplied from the recommended reconfiguration parameter setting unit 120, and stores the acquired recommended reconfiguration parameter setting data. .

  Next, the recommended reconstruction parameter setting process in the image reconstruction device 3 in FIG. 19 will be described with reference to the flowchart in FIG. The recommended reconstruction parameter setting process is started by, for example, an instruction to start the recommended reconstruction parameter setting process by operating the input unit 46 by the operator when the image reconstruction apparatus 3 is installed. .

  In step S51, the operation input control unit 103 determines whether or not an instruction to start the writing process is given by the operator operating the input unit 25, and writing is performed by operating the input unit 25 by the operator. Wait until it is determined that an instruction to start processing has been issued.

  If it is determined in step S51 that the operator has operated the input unit 25 to instruct the start of the writing process, the recommended reconfiguration parameter input data acquisition unit 119 receives the instruction via the operation input control unit 118 in step S52. Then, the recommended reconfiguration parameter input data, which is input data related to the recommended reconfiguration parameter input by operating the input unit 25 by the operator, is acquired, and the recommended reconfiguration parameter input data acquired is set as the recommended reconfiguration parameter To the unit 120.

  In step S53, the recommended reconstruction parameter setting unit 94 acquires the recommended reconstruction parameter input data supplied from the recommended reconstruction parameter input data acquisition unit 119, and based on the acquired recommended reconstruction parameter input data, the image A recommended reconstruction parameter used when reconstructing projection data over a wide range of three dimensions with no associated information is set.

  The recommended reconfiguration parameter setting unit 94 supplies recommended reconfiguration parameter setting data, which is setting data related to the set recommended reconfiguration parameter, to the auxiliary storage unit 121. The recommended reconstruction parameter setting data includes various data relating to recommended reconstruction parameters used when reconstructing a wide range of three-dimensional projection data not associated with image supplementary information (for example, processing during reconstruction processing). Various parameters relating to the shape of the space, the size of the processing space at the time of the reconstruction process, the reconstruction space center information, and the like).

  In step S54, the auxiliary storage unit 121 acquires the recommended reconfiguration parameter setting data supplied from the recommended reconfiguration parameter setting unit 120, and stores the acquired recommended reconfiguration parameter setting data.

  Thereby, when image reconstruction is performed by the image reconstruction device 3 based on projection data in a three-dimensional wide area not associated with image supplementary information, suitable recommended reconstruction according to the examination region and examination content Parameters can be used. Further, the operator does not need to manually switch the reconstruction parameters registered in advance in the image reconstruction device, and the operability and convenience when performing image reconstruction in the image reconstruction device 3 can be improved. . In addition, a suitable display image can be provided to the operator at the workstation 4. Therefore, the performance of the X-ray diagnostic apparatus 2 and the image reconstruction apparatus 3 can be fully exhibited.

  Note that the recommended reconfiguration parameter once set may be appropriately edited such as addition, deletion, or change.

  The recommended reconstruction parameter may be automatically uploaded from the X-ray diagnostic apparatus 2 to the image reconstruction apparatus 3 when the X-ray diagnostic apparatus 2 is activated, for example. In this case, the recommended reconstruction parameter to be uploaded may be set or changed by an operator on the X-ray diagnostic apparatus 2 side in a preset manner (for example, an examination protocol or an imaging program is selected).

  Furthermore, when performing image reconstruction of past projection data (projection data over a wide range of a three-dimensional wide area generated in the past) or faulty projection data not associated with image supplementary information in the image reconstruction device 3, It is possible to use a recommended reconstruction parameter that is set in advance or uploaded from the X-ray diagnostic apparatus 2, but it is possible to use an image reconstruction that the optimum reconstruction parameter cannot be used for the reconstruction processing type of the performed inspection protocol. You may make it display on the output part 47 of the structure apparatus 3. FIG. For example, a message dialog stating that “the optimal reconstruction parameter cannot be used for the image reconstruction process based on this projection data” is displayed.

  The series of processes described in the embodiments of the present invention can be executed by software, but can also be executed by hardware.

  In the embodiment of the present invention, the steps of the flowchart show examples of processing that is performed in time series in the order described. However, even if they are not necessarily processed in time series, they are performed in parallel or individually. The process to be executed is also included.

1 is a network diagram showing the overall configuration of an image processing system according to the present invention. The external view which shows the structure of the external appearance of the X-ray diagnostic apparatus which concerns on this invention. The block diagram which shows the internal structure of the X-ray diagnostic apparatus which concerns on this invention. The block diagram which shows the other structure of the X-ray detection part at the time of using a two-dimensional X-ray detector. 1 is a block diagram showing an internal configuration of an image reconstruction device according to the present invention. The block diagram which shows the structure inside the workstation of this invention. 1 is a block diagram showing an internal configuration of a personal computer applicable to an information processing apparatus according to the present invention. The figure which shows the functional structure which the X-ray diagnostic apparatus of FIG. 3 can perform. The figure which shows the functional structure which the image reconstruction apparatus of FIG. 5 can perform. The figure which shows the functional structure which the workstation of FIG. 6 can perform. The flowchart explaining the image supplementary information supply process in the X-ray diagnostic apparatus of FIG. Explanatory drawing explaining the optimal reconstruction parameter set to the reconstruction process classification for every test | inspection protocol. Other explanatory drawing explaining the optimal reconstruction parameter set to the reconstruction process classification for every test | inspection protocol. The figure which shows the structure of the image supplementary information produced | generated by the image supplementary information production | generation process of step S7 of FIG. 10 is a flowchart for explaining image reconstruction processing in the image reconstruction device in FIG. 9. 11 is a flowchart for explaining image display processing in the workstation of FIG. 10. Other explanatory drawing explaining the optimal reconstruction parameter set to the reconstruction process classification for every test | inspection protocol. 9 is a flowchart for explaining a writing process in the X-ray diagnostic apparatus in FIG. The figure which shows the other functional structure which the image reconstruction apparatus of FIG. 5 can perform. 20 is a flowchart for explaining recommended reconstruction parameter setting processing in the image reconstruction device in FIG. 19.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Image processing system, 2 ... X-ray diagnostic apparatus, 3 ... Image reconstruction apparatus, 4 ... Workstation, 5 ... Network, 6 ... Personal computer, 7 ... External recording medium, 11 (11a and b) ... X-ray generation , 12 (12a and b) ... X-ray detector, 13 (13a and b) ... holding mechanism, 14 ... top plate, 15 ... high voltage generator, 16 ... X-ray tube, 17 ... X-ray restrictor, 18 ... X-ray I. 19 ... X-ray TV camera, 20 ... A / D converter, 21 ... high voltage control circuit, 22 ... high voltage generator, 23 ... control unit, 24 ... storage unit, 25 ... input unit, 26 ... display unit, 27: Communication unit, 28 ... Drive, 29 ... Optical disk, 30 ... Magnetic disk, 31 ... Magneto-optical disk, 32 ... Semiconductor memory, 33 ... CPU, 34 ... ROM, 35 ... RAM, 36 ... Image memory, 37 ... Bus, 38 ... Two-dimensional X-ray detector, 39 ... DAS, 41 ... CPU, 42 ... ROM, 43 ... RAM, 44 ... Bus, 45 ... I / O interface, 46 ... Input unit, 47 ... Output unit, 48 ... Storage unit, 49 ... communication unit, 50 ... drive, 51 ... optical disk, 52 ... magnetic disk, 53 ... magneto-optical disk, 54 ... semiconductor memory, 61 ... CPU, 62 ... ROM, 63 ... RAM, 64 ... bus, 65 ... input / output 66, input unit, 67 ... output unit, 68 ... storage unit, 69 ... communication unit, 70 ... drive, 71 ... optical disc, 72 ... magnetic disc, 73 ... magneto-optical disc, 74 ... semiconductor memory, 81 ... CPU, 82 ... ROM, 83 ... RAM, 84 ... bus, 85 ... input / output interface, 86 ... input unit, 87 ... output unit, 88 ... storage unit, 89 ... communication unit, 90 ... drive, 91 ... optical disc, 92 ... magnetic disc DESCRIPTION OF SYMBOLS 93 ... Magneto-optical disk 94 ... Semiconductor memory 101 ... Image processing part 102 ... Auxiliary storage part 103 ... Operation input control part 104 ... Examination protocol setting part 105 ... Image supplementary information generation part 106 ... Image memory 107: Display control unit, 108: Communication control unit, 109 ... Reading unit, 110 ... Writing unit, 111 ... Communication control unit, 112 ... Image reconstruction unit, 1 DESCRIPTION OF SYMBOLS 3 ... Main memory | storage part, 114 ... Communication control part, 115 ... Display image data generation part, 116 ... Main memory part, 117 ... Display control part, 118 ... Operation input control part, 119 ... Recommended reconstruction parameter input data acquisition part, 120: Recommended reconstruction parameter setting unit 121: Auxiliary storage unit

Claims (8)

In an image processing system comprising an X-ray diagnostic apparatus and an image reconstruction apparatus connected to the X-ray diagnostic apparatus via a network,
The X-ray diagnostic apparatus comprises:
First acquisition means for detecting transmission X-rays from a plurality of directions generated from an X-ray generation unit and transmitted through a subject, and acquiring projection data generated based on the detected transmission X-rays;
Generating means for generating image supplementary information used when reconstructing the projection data acquired by the first acquisition means based on a preset inspection protocol;
Storage means for storing the image supplementary information generated by the generation means in association with the projection data acquired by the first acquisition means;
Supply means for supplying the image supplementary information stored by the storage means together with the projection data stored in association to an image reconstruction apparatus connected to the X-ray diagnostic apparatus via a network. ,
The image reconstruction device includes:
Second acquisition means for acquiring the image supplementary information from the X-ray diagnostic apparatus;
An image processing system comprising: generation means for performing image reconstruction using the reconstruction parameters included in the image supplementary information acquired by the second acquisition means to generate volume data. An acquisition means for detecting transmission X-rays generated from an X-ray generation unit and transmitted from a plurality of directions through the subject, and acquiring projection data generated based on the detected transmission X-rays;
Generating means for generating image supplementary information used when reconstructing the projection data acquired by the acquiring means, based on a preset inspection protocol;
Storage means for storing the image supplementary information generated by the generation means in association with the projection data acquired by the acquisition means;
Supply means for supplying the image supplementary information stored in the storage means together with the projection data stored in association with the image reconstruction apparatus connected to the X-ray diagnostic apparatus via a network X-ray diagnostic apparatus characterized by the above.   3. The X according to claim 2, wherein the image supplementary information generated by the generation unit includes a reconstruction parameter used when the projection data acquired by the acquisition unit is reconstructed. Line diagnostic equipment.   The acquisition unit detects transmission X-rays generated from an X-ray generation unit and transmitted through a subject from a plurality of directions, and acquires projection data over a three-dimensional region generated based on the detected transmission X-rays. The X-ray diagnostic apparatus according to claim 2, wherein:   The X-ray diagnostic apparatus according to claim 2, wherein at least one of the examination protocols is preset for each examination site. Reading means for reading out the projection data and the image supplementary information stored in association with the storage means;
The X-ray diagnostic apparatus according to claim 2, further comprising a writing unit that writes the projection data and the image supplementary information read by the reading unit to an external recording medium. An acquisition step of detecting transmission X-rays generated from an X-ray generation unit from a plurality of directions transmitted through the subject and acquiring projection data generated based on the detected transmission X-rays;
A generation step of generating image supplementary information used when reconstructing the projection data acquired by the processing of the acquisition step based on a preset inspection protocol;
A storage step of storing the image supplementary information generated by the processing of the generation step in association with the projection data acquired by the acquisition unit;
Supplying the image supplementary information stored by the processing of the storage step together with the projection data stored in association with the image reconstruction apparatus connected to the X-ray diagnostic apparatus via a network; An image processing program for an X-ray diagnostic apparatus characterized by causing a computer to execute. Acquisition means for acquiring image supplementary information used when reconstructing projection data over a three-dimensional region from an X-ray diagnostic apparatus connected to the image reconstruction apparatus via a network;
Using the reconstruction parameters included in the image supplementary information acquired by the acquisition means, performing image reconstruction and generating volume data ;
Obtaining means for obtaining input data related to a recommended reconstruction parameter that is a recommended reconstruction parameter among the reconstruction parameters used when reconstructing projection data over the three-dimensional region;
Setting means for setting the recommended reconfiguration parameter based on input data related to the recommended reconfiguration parameter acquired by the acquisition means;
Storage means for storing recommended reconfiguration parameter setting data which is setting data related to the recommended reconfiguration parameter set by the setting means;
An image reconstruction apparatus comprising:

Images