JP2008036029A - Medical imaging apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a medical imaging apparatus capable of reducing the operation burden of an operator and improving the convenience of the operator. <P>SOLUTION: This medical imaging apparatus 1 is provided with imaging sections 3 and 4 provided movably around a bed 2 where a subject T is mounted and imaging the medical images of the subject T from imaging positions to the subject T, a moving drive section 8 moving the imaging sections 3 and 4 to the imaging positions, a detecting section 9 detecting the moving routes of the imaging sections 3 and 4 to the imaging positions, a storage section 13 storing the detected moving routes, and a control means controlling to drive the moving drive part 8 so as to move the imaging sections 3 and 4 to the imaging positions along the stored moving routes. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a medical image photographing apparatus for photographing a medical image.

  The medical imaging apparatus includes an imaging unit that captures a medical image of a subject. The imaging unit is positioned at an imaging position with respect to the subject on the bed, and the medical image of each part of the subject is captured by the imaging unit. . As this medical image photographing apparatus, for example, an X-ray fluoroscopic photographing apparatus for photographing a medical image of a blood vessel or the like of a subject can be cited.

  In such a medical image photographing apparatus, the photographing position is determined to some extent according to each part of the subject. For this reason, there has been proposed a medical image photographing apparatus having an auto-positioning function that automatically moves the photographing unit to the photographing position with respect to the subject (see, for example, Patent Document 1, Patent Document 2, and Patent Document 3). Thereby, an operator such as an operator or an assistant can move the imaging unit to a preset imaging position by one-button operation.

In addition, the medical imaging apparatus may be provided with an arm rest on which the subject's arm is placed and a protective plate that protects the operator and assistant from the X-rays generated by the imaging section. In some cases, it may be an interferer that interferes with the moving path. For this reason, a medical image photographing apparatus having an interference interlock function for stopping the movement of the photographing unit before the photographing unit comes into contact with an interference object has also been proposed.
JP-A-2005-245502 JP 2005-237678 A JP-A-8-289885

  However, in the above-described medical imaging apparatus, the imaging unit moves at the shortest distance to the imaging position. Therefore, when there is an interference such as an armrest or a protective plate, the operator's input operation or interference interlock function Therefore, it is necessary to stop the auto-positioning function and then avoid the interference by manual operation (manual operation). This manual operation is a burden on the operator, and the convenience for the operator is reduced. Even if the interfering object is configured to be movable, it may not be possible to move the interfering object depending on the content of the operation or the operator's standing position. Therefore, it becomes necessary to avoid the interference.

  The present invention has been made in view of the above, and an object of the present invention is to provide a medical image photographing apparatus that can reduce the operation burden on the operator and improve the convenience for the operator.

  A feature according to an embodiment of the present invention is that, in the medical image photographing apparatus, an imaging unit that is provided so as to be movable around a bed on which the subject is placed and that captures a medical image of the subject from an imaging position with respect to the subject A moving drive unit that moves the imaging unit to the imaging position, a detection unit that detects a moving path that the imaging unit moves to the imaging position, a storage unit that stores the detected moving path, and a stored moving path And a control unit that drives and controls the movement driving unit so as to move the imaging unit to the imaging position.

  According to the present invention, the operation burden on the operator can be reduced and the convenience for the operator can be improved.

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

  As shown in FIGS. 1 and 2, the medical imaging apparatus 1 according to the first embodiment of the present invention includes a bed 2 on which a subject T such as a patient is placed, and a subject on the bed 2. A first imaging unit 3 and a second imaging unit 4 that respectively capture a medical image of the subject T from each imaging position with respect to T, and a high voltage supplied to the first imaging unit 3 and the second imaging unit 4 are generated. A high voltage generating unit 5 to be moved, a first support unit 6 and a second support unit 7 that support the first imaging unit 3 and the second imaging unit 4 so as to be movable to the respective imaging positions, and the first imaging unit 3 and A movement drive unit 8 for moving the second imaging unit 4 to each imaging position; a detection unit 9 for detecting a moving path along which each of the first imaging unit 3 and the second imaging unit 4 moves to each imaging position; A control unit 10 that drives and controls each unit such as the bed 2, the high voltage generation unit 5, and the movement drive unit 8. An operation unit 11 that receives an input operation by an operator such as a surgeon or an assistant, a display unit 12 that displays an image such as a medical image, and a storage unit 13 that stores various data including various detected movement paths, various programs, and the like. And. An example of such a medical image photographing apparatus 1 is an X-ray fluoroscopic photographing apparatus that photographs a medical image of a blood vessel or the like of a subject T.

  The bed 2 is configured by a top plate 2a that is formed so as to be movable in the horizontal direction and the vertical direction, and on which the subject is placed, and a top plate movement drive unit 2b that supports the top plate 2a and moves it in the horizontal direction and the vertical direction. ing. The top board 2a is provided with an arm rest U on which the arm of the subject T can be placed. This arm rest U is used when administering an infusion or a contrast medium. Such a bed 2 moves the top plate 2a by the top plate moving drive unit 2b, and positions the subject T on the top plate 2a at a predetermined position. In addition, a protective plate P1 is provided around the bed 2 to protect the operator, assistant, and the like from X-ray exposure. The protection plate P1 is supported by a plate support member P2 attached to the ceiling surface, and is formed to be movable.

  The first imaging unit 3 is an X-ray irradiation unit 3a that irradiates the subject T on the top 2a of the bed 2 with X-rays, and an X-ray that detects the X-rays irradiated by the X-ray irradiation unit 3a. And a detector 3b. The first imaging unit 3 is provided so as to be movable around the top 2a of the bed 2 and captures a medical image of each part of the subject T on the top 2a from the imaging position. Similarly, the 2nd imaging | photography part 4 detects the X-ray irradiated by the X-ray irradiation part 4a which irradiates the X-ray with respect to the subject T on the top plate 2a of the bed 2, and the X-ray irradiation part 4a X-ray detection unit 4b. The second imaging unit 4 is also provided so as to be movable around the top 2a of the bed 2 and captures a medical image of each part of the subject T on the top 2a from the imaging position.

  The X-ray irradiation units 3a and 4a include an X-ray tube that emits X-rays, an X-ray restrictor that narrows the X-rays emitted from the X-ray tube, and the like. For example, a collimator is used as the X-ray diaphragm. Such X-ray irradiators 3a and 4a emit X-rays with an X-ray tube, squeeze the X-rays with an X-ray restrictor, and irradiate the subject T on the top plate 2a of the bed 2.

  The X-ray detection units 3b and 4b are provided to face the X-ray irradiation units 3a and 4a, and are installed so as to be movable in the contact / separation direction with respect to the opposed X-ray irradiation units 3a and 4a. As such X-ray detectors 3b and 4b, for example, an image intensifier or an X-ray flat panel detector (FPD) is used. As the X-ray detectors 3b and 4b, a direct conversion type X-ray flat panel detector that directly converts X-ray projection information into an electrical signal can be used.

  The high voltage generation unit 5 is a device that generates a high voltage to be supplied to the X-ray irradiation units 3a and 4a. The high voltage generation unit 5 boosts and rectifies the voltage supplied from the control unit 10 and supplies the voltage to the X-ray irradiation units 3a and 4a. To supply. Note that the control unit 10 controls various conditions such as a waveform of a voltage applied to the high voltage generation unit 5, that is, an amplitude and a pulse width, in order to cause the X-ray irradiation units 3a and 4a to generate desired X-rays.

  The first support unit 6 includes a support arm unit 6a that supports the X-ray irradiation unit 3a and the X-ray detection unit 3b facing each other, an arm support unit 6b that supports the support arm unit 6a so as to be slidable, and an arm thereof And a support member 6c provided to be movable on the ceiling surface while rotatably supporting the support portion 6b. The first support unit 6 supports the first imaging unit 3 so as to be movable around the subject T on the top 2a.

  The support arm portion 6a is, for example, an Ω-shaped Ω arm, and is slidably provided on the arm support portion 6b. The support arm portion 6a is formed to be slidable in the direction in which the arm extends. An X-ray irradiation unit 3a and an X-ray detection unit 3b are provided opposite to each other at both ends in the longitudinal direction of the support arm unit 6a. Moreover, the arm support part 6b is a member which supports the support arm part 6a so that a slide movement is possible, and is provided in the support member 6c so that rotation is possible. The support member 6c is a member that rotatably supports the arm support portion 6b, and is provided by being fitted to a guide member (not shown) such as a rail provided on the ceiling surface along the longitudinal direction of the top plate 2a. It has been. The support member 6c is formed to be movable in the guide direction by the guide member.

  The second support unit 7 includes a support arm unit 7a that supports the X-ray irradiation unit 4a and the X-ray detection unit 4b facing each other, an arm support unit 7b that supports the support arm unit 7a so as to be slidable, and an arm thereof A support column 7c that rotatably supports the support portion 7b and a column support portion 7d that rotatably supports the support column 7c in the outer circumferential direction are provided. The second support unit 7 supports the second imaging unit 4 so as to be movable around the subject T on the top 2a.

  The support arm portion 7a is, for example, a C-shaped C-arm, and is provided on the arm support portion 7b so as to be slidable. The support arm portion 7a is formed to be slidable in the direction in which the arm extends. An X-ray irradiation unit 4a and an X-ray detection unit 4b are provided opposite to each other at both ends in the longitudinal direction of the support arm unit 7a. Moreover, the arm support part 7b is provided in the support | pillar 7c so that rotation is possible. The column 7c is provided on the column support portion 7d so as to be rotatable in the outer peripheral direction, and the column support portion 7d is provided fixed to the floor surface.

  The movement drive unit 8 includes a first drive unit 8 a that moves and rotates the first imaging unit 3 and a second drive unit 8 b that moves and rotates the second imaging unit 4. The first driving unit 8a supplies a moving mechanism for moving the first imaging unit 3, a rotating mechanism for rotating the first imaging unit 3, and a driving force for movement and rotation. It is comprised by the drive source etc. Similarly, the second drive unit 8b also has a moving mechanism for moving the second imaging unit 4, a rotating mechanism for rotating the second imaging unit 4, and a driving force for movement and rotation. It is comprised by the drive source etc. which supply

  Such a movement drive unit 8 translates the first support unit 6, that is, the support arm unit 6 a in the body axis direction of the subject T according to the drive control by the control unit 10, and moves the first support unit 6 around the subject T. The first photographing unit 3 is positioned, and the support arm unit 6a is rotated and slid to change the photographing direction and photographing angle (oblique angle) of the first photographing unit 3. Further, the movement drive unit 8 rotates and slides the second support unit 7, that is, the support arm unit 7 a, according to the drive control by the control unit 10, and the shooting direction and shooting angle (second shooting unit 4). Change the oblique angle. Here, the imaging direction is a direction in which the imaging units 3 and 4 perform imaging on the region of the subject T, and the imaging angle is an imaging angle on the region of the subject T. The angle at which to do. At this time, the top plate 2a of the bed 2 is also moved by the top plate moving drive unit 2b, and the subject T on the top plate 2a is positioned at a predetermined position.

  The detection unit 9 includes a position detection sensor such as an encoder or a position sensor. The detection unit 9 includes a horizontal movement position of the top plate 2a, a parallel movement position of the support arm unit 6a, a rotation angle of the support arm unit 6a, a slide angle of the support arm unit 6a, and a contact / separation position of the X-ray detection unit 3b. Etc. are detected. In addition, the detection unit 9 detects the rotation angle of the support column 7c, the rotation angle of the support arm unit 7a, the slide angle of the support arm unit 7a, the contact / separation position of the X-ray detection unit 4b, and the like.

  Such a detection unit 9 sequentially detects the current position (passing point) of the first imaging unit 3 that moves to the imaging position, and detects the moving path that the first imaging unit 3 moves to the imaging position. Similarly, the detection unit 9 sequentially detects the current position (passing point) of the second imaging unit 4 that moves to the imaging position, and detects the movement path that the second imaging unit 4 moves to the imaging position. Here, the imaging position of the first imaging unit 3 is a position when the X-ray irradiation unit 3a and the X-ray detection unit 3b of the first imaging unit 3 perform an imaging operation for imaging a medical image on the subject T. is there. Similarly, the imaging position of the second imaging unit 4 is a position when the X-ray irradiation unit 4a and the X-ray detection unit 4b of the second imaging unit 4 perform an imaging operation for imaging a medical image on the subject T. is there.

  The control unit 10 includes a movement control unit that drives and controls the top plate movement driving unit 2b, the movement driving unit 8, and the like, an X-ray control unit that drives and controls the high voltage generation unit 5, and the like, and controls the entire system. It functions as a control means. In particular, the control unit 10 includes a moving path storage process for storing the moving paths of the first photographing unit 3 and the second photographing unit 4, and further includes the first photographing unit 3 and the second photographing unit 4. Auto-positioning processing for automatically moving to the shooting position is executed. For example, the control unit 10 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like that control each unit centrally. The operation unit 11, the display unit 12, and the storage unit 13 are electrically connected to such a control unit 10.

  The operation unit 11 is an input unit that is input by an operator. As the operation unit 11, for example, a joystick, a keyboard, a mouse, or the like is used. An operator such as an operator or an assistant performs an input operation (manual operation) on the operation unit 11 to move the first imaging unit 3 and the second imaging unit 4 to desired imaging positions. The operation unit 11 includes a storage start button for starting the storage of the moving path, a storage button for turning on the storage trigger, and a storage end button for ending the storage of the moving path (all illustrated. Etc.) etc. are provided.

  The display unit 12 is a display device that displays a medical image of the subject T, a moving path selection screen, and the like. As the display unit 12, for example, a liquid crystal display, a CRT (Cathode Ray Tube) display, or the like is used. On the moving path selection screen, a plurality of path buttons and the like indicating the moving paths are also displayed.

  The storage unit 13 is a storage device that stores various programs, various data, and the like. In particular, the storage unit 13 is a storage device that stores a moving path file F1 indicating a moving path and a captured medical image as various data. For example, a magnetic disk device or a semiconductor disk device (flash memory) is used as the storage unit 13.

  As shown in FIG. 3, the movement paths A to C are stored in the movement path file F1. The movement paths A to C are position histories in which the current position of the first photographing unit 3 that moves to the photographing position and the current position of the second photographing unit 4 that moves to the photographing position are sequentially stored. The moving paths A to C are paths through which the first imaging unit 3 and the second imaging unit avoid mutual movement interference.

  Here, each current position is composed of various kinds of position information. For example, the current positions a1 to a7, b1 to b4, and c1 to c5 of the movement paths A to C are the parallel movement position of the support arm portion 6a, the rotation angle of the support arm portion 6a, the slide angle of the support arm portion 6a, and X The line detection unit 3b is configured from a contact / separation position or the like. The current positions d1 to d5, e1 to e6, and c1 to c3 of the moving paths A to C are the rotation angle of the support column 7c, the rotation angle of the support arm portion 7a, the slide angle of the support arm portion 7a, and the X-ray detection unit. It is comprised from 4b contact / separation position etc., respectively.

  A moving path selection screen is displayed on the display unit 12 based on such a moving path file F1. For example, when the moving path file F1 shown in FIG. 3 is displayed on the display unit 12, the display areas in the frame of the moving paths A to C function as path buttons, and the moving paths A to C desired by the operator are displayed. Is clicked, the moving paths A to C in the display area are selected as moving paths used for the auto-positioning process. At this time, as the names of the movement paths A to C, names such as “set by avoiding the arm rest base U” and “set by avoiding the protective plate P1” can be set on the display unit 12. is there. Thus, the operator can easily select the desired moving paths A to C.

  Next, the moving path storage process and the auto positioning process performed by the medical image photographing apparatus 1 will be described. The control unit 10 of the medical image photographing apparatus 1 executes a movement path storage process and an auto positioning process based on a program stored in the storage unit 13.

  As shown in FIG. 4, in the moving path storage process, the control unit 10 first determines whether or not the storage start button of the operation unit 11 has been pressed (step S1), and waits for the storage start button to be pressed (step S1). NO in step S1). The operator presses the storage start button when storing the movement path.

  If it is determined that the storage start button has been pressed (YES in step S1), it is determined whether or not a manual operation has been started (step S2), and the process waits for the start of the manual operation (NO in step S2). After pressing the storage start button, the operator performs an input operation on the operation unit 11 and performs a manual operation for moving the first imaging unit 3 and the second imaging unit 4 to the respective imaging positions. In response to this, the first photographing unit 3 and the second photographing unit 4 start moving in accordance with a manual operation command.

  If it is determined that the manual operation has been started (YES in step S2), it is determined whether or not the storage end button of the operation unit 11 has been pressed (step S3), and whether or not the trigger is turned on (ON). (Step S4), and waits for pressing of the storage end button or turning on the trigger (NO in step S3, NO in step S4). At this time, the timing at which the trigger is turned on may be the timing when a predetermined sampling time (for example, about 1 second) has passed (trigger for each sampling time), and the current position (passing point) desired by the operator The timing when the storage button of the operation unit 11 is pressed may be used (trigger for stopping at a stop).

  If it is determined that the storage end button has not been pressed (NO in step S3) and it is determined that the trigger has been turned on (YES in step S4), each of the first imaging unit 3 and the second imaging unit 4 is currently The position is stored in the storage unit 13 in association with the name of the moving path (for example, a number or a part name) (step S5), and the process returns to step S3. Thereafter, if it is determined that the storage end button has been pressed (YES in step S3), the process ends. Note that when the movement of the first photographing unit 3 and the second photographing unit 4 is completed, the operator presses the storage end button.

  By such a moving path storage process, the current positions, that is, the passing points of the first photographing unit 3 and the second photographing unit 4 until the first photographing unit 3 and the second photographing unit 4 reach the respective photographing positions. Are sequentially stored in the storage unit 13, and finally, the movement paths of the first imaging unit 3 and the second imaging unit 4 are stored in the storage unit 13 (see FIG. 3). The display unit 12 updates the movement path selection screen in accordance with the change of the movement path file F1 in the storage unit 13.

  As shown in FIG. 5, in the auto-positioning process, the control unit 10 first determines whether or not a moving path has been selected (step S11), and waits for a moving path to be selected (NO in step S11). ). At this time, a plurality of path buttons and the like indicating the moving paths are displayed on the moving path selection screen of the display unit 12. The operator selects a desired moving path by clicking these path buttons.

  If it is determined that the moving path has been selected (YES in step S11), the first photographing unit 3 and the second photographing unit 4 are moved to the respective photographing positions along the selected moving path (step S12). That is, the control unit 10 drives and controls the movement driving unit 8 so as to move the first imaging unit 3 and the second imaging unit 4 to the respective imaging positions along the stored movement path.

  Next, it is determined whether or not the first photographing unit 3 and the second photographing unit 4 have reached the respective photographing positions (step S13), and the first photographing unit 3 and the second photographing unit 4 have reached the respective photographing positions. It waits to do (NO of step S13). Thereafter, when it is determined that the first photographing unit 3 and the second photographing unit 4 have reached the respective photographing positions (YES in step S13), the process is terminated.

  By such auto-positioning processing, the first photographing unit 3 and the second photographing unit 4 are automatically moved to respective photographing positions along the movement path stored in advance. At this time, even if there is an interfering object such as the arm rest U or the protective plate P1, the first photographing unit 3 and the second photographing unit 4 automatically interfere by selecting a moving path that avoids the interfering object. Since it moves to each photographing position while avoiding an object, it is not necessary to cancel the auto-positioning function and avoid an interference object by manual operation (manual operation). As a result, manual operation is omitted, and it is possible to prevent a decrease in convenience for the operator.

  After the auto-positioning process, the medical imaging apparatus 1 irradiates the subject T on the top 2a with the X-ray beam by the X-ray irradiation unit 3a of the first imaging unit 3, and transmits the X-ray beam that has passed through the subject. Is detected by the X-ray detector 3b, and a medical image of a predetermined part of the subject is taken. In addition, the medical imaging apparatus 1 irradiates the subject T on the top 2a with the X-ray beam by the X-ray irradiation unit 4a of the second imaging unit 4, and transmits the X-ray beam transmitted through the subject to the X-ray. The detection is performed by the line detection unit 4b, and a medical image of a predetermined part of the subject is captured. Thereafter, the medical image photographing apparatus 1 performs image processing on the photographed medical image by the control unit 10, displays the medical image on the display unit 12, and further stores the medical image in the storage unit 13.

  As described above, according to the first embodiment, the detection unit 9 that detects the movement path on which the imaging units 3 and 4 move to the imaging position, the storage unit 13 that stores the detected movement path, and the storage By providing the control unit 10 that drives and controls the movement driving unit 8 so as to move the imaging units 3 and 4 to the imaging position along the moving path, there are interferences such as the arm rest U and the protective plate P1. Even if the shooting path is selected to avoid the interference, the photographing units 3 and 4 automatically move to the shooting position while avoiding the interference. Therefore, the auto positioning function is canceled and the interference is detected manually. There is no need to avoid. Thereby, since manual operation is omitted, the operation burden on the operator can be reduced and the convenience for the operator can be improved.

  In addition, even an operator who is not familiar with manual operation only needs to perform an operation of selecting a moving path, so that the medical image photographing apparatus 1 can be operated safely and easily. Positioning time can be shortened. In addition, it is possible to reproduce the movement path desired by the operator with a one-touch input operation, and it is possible to automatically reproduce complicated operations such as manual operations, thereby improving the convenience of the operator. It can be improved further. In addition, it is possible to suppress the complexity of manual operation, for example, moving the photographing units 3 and 4 at a low speed or moving too much from a specified position.

  In addition, since the detection unit 9 sequentially detects the current position of the photographing units 3 and 4 that move to the photographing position as the movement path, it is possible to obtain an accurate movement path, and thus a highly accurate auto-positioning function. Can be realized.

(Other embodiments)
The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.

  For example, in the above-described embodiment, only the moving paths of each of the first photographing unit 3 and the second photographing unit 4 are stored in the storage unit 13, but the present invention is not limited to this. Information may be stored in association with each other. Examples of the related information include a stop time at the current position, a moving speed (change in moving speed) between the current positions, and the like.

  In this case, the detection unit 9 measures the stop time of the photographing units 3 and 4 at the current position, and the storage unit 13 also stores the stop time in association with the current position. Thereby, in addition to an accurate moving path, it is possible to obtain a stop time associated therewith, so that an accurate auto-positioning function that takes the stop time into account can be realized. The detecting unit 9 sequentially detects the moving speed of the photographing units 3 and 4, and the storage unit 13 also stores the moving speed in association with the moving path. Thereby, in addition to an accurate moving path, it is possible to obtain a change in the moving speed related thereto, so that an accurate auto-positioning function taking the moving speed into consideration can be realized. In particular, when the movement speed of the photographing units 3 and 4 is increased, the movement speed can be increased between movements that do not cause a problem in terms of safety or machine operation. Compared to, it is possible to shorten the travel time to the shooting position.

  In addition, in the above-described embodiment, the movement path is stored in response to pressing of the storage start button. However, the present invention is not limited to this, and for example, manual operation is performed without pressing the storage start button. In some cases, the travel route may always be stored.

  In the above-described embodiment, the storage start button, the storage button, and the storage end button are provided on the operation unit 11. However, the present invention is not limited to this. For example, the storage start button, the storage button, and the storage end button are provided. The information may be displayed on the display unit 12, and the storage start button, the storage button, and the storage end button may be pressed by an input operation on the operation unit 11.

  In the above-described embodiment, a plurality of route buttons are displayed on the display unit 12 and these route buttons are pressed by an input operation on the operation unit 11. However, the present invention is not limited to this. A path button may be provided on the operation unit 11.

  Finally, in the above-described embodiment, the control unit 10 that drives and controls the movement drive unit 8 based on a program that is software is used as the control unit. However, the present invention is not limited to this. The control means may be configured only by this.

It is a mimetic diagram showing a schematic structure of a medical image photographing device concerning one embodiment of the present invention. It is an external appearance perspective view which shows schematic structure of the medical image imaging device shown in FIG. It is explanatory drawing for demonstrating the movement path | route file stored in the memory | storage part with which the medical image imaging device shown in FIG. 1 is provided. It is a flowchart which shows the flow of the movement path | route storage process which the medical imaging device shown in FIG. 1 performs. It is a flowchart which shows the flow of the auto positioning process which the medical image imaging device shown in FIG. 1 performs.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Medical imaging device 2 Sleeper 3, 4 Imaging part 8 Movement drive part 9 Detection part 10 Control means (control part)
13 storage unit T subject

Claims (4)

An imaging unit that is provided so as to be movable around a bed on which the subject is placed, and that captures a medical image of the subject from an imaging position with respect to the subject;
A movement drive unit for moving the imaging unit to the imaging position;
A detection unit that detects a moving path along which the imaging unit moves to the imaging position;
A storage unit for storing the detected moving path;
Control means for driving and controlling the movement drive unit so as to move the imaging unit to the imaging position along the stored movement path;
A medical image photographing apparatus comprising:   The medical image photographing apparatus according to claim 1, wherein the detection unit sequentially detects a current position of the photographing unit that moves to the photographing position as the moving path. The detection unit measures a stop time of the imaging unit at the current position;
The medical image capturing apparatus according to claim 2, wherein the storage unit also stores the stop time in association with the current position. The detection unit sequentially detects the moving speed of the photographing unit,
The medical image photographing apparatus according to claim 1, wherein the storage unit also stores a change in the moving speed in association with the moving path.

Images