JP4643136B2 - Medical diagnostic equipment - Google Patents

Description

  The present invention relates to a medical diagnostic apparatus such as an X-ray CT apparatus or a nuclear magnetic resonance imaging apparatus.

FIG. 10 is an explanatory diagram showing a basic configuration of a conventional CT apparatus. The CT apparatus includes an operation console 101, a bed mechanism 102, and a gantry unit 103. The operation console 101 receives instructions and information from the operator. The bed mechanism 102
The BJ is placed on the top plate 104 and moved in the body axis direction. Further, the gantry unit 103 performs scanning by irradiating the subject OBJ with X-rays in the cylindrical space. In addition, a display 105 for performing display for instructing the subject OBJ to breathe or hold the breath with a plurality of LEDs or the like is fixed to the upper part of the tapered wall surface formed at the end of the cylindrical space. Has been.

Examples of the scan method include scan methods such as S & V scan, S & S scan, and helical scan. The S & V scan is a scanning method in which scanning and image reconstruction display are alternately performed such that scanning is performed and an image obtained by the scanning is reconstructed and displayed, and then scanning is performed again. This is a scanning method used when confirming whether or not the agent has spread to a desired site. S &
The S-scan is a scan-prioritized scan method in which scans are continuously performed, and an image is reconstructed and displayed in the form of following each scan. The helical scan is performed by using the bed mechanism 102 on which the subject OBJ is placed. In this scanning method, the subject OBJ is spirally scanned by moving it at a predetermined pitch to obtain a continuous tomographic image.

Here, if the subject OBJ does not properly breathe or hold the breath during scanning, the position of the subject OBJ is not fixed, so that the image quality of the tomographic image is deteriorated or the scan time is extended by re-taking the imaging. In addition, the exposure dose of the subject OBJ is increased. Therefore, ensuring that the subject holds his / her breath is an extremely important issue, and various ideas have been made in the past.

For example, in the above-described conventional CT apparatus, the timing of breathing can be guided by using the display 105 to indicate start / release of breath holding by lighting or colors of a plurality of LEDs.

Further, in the CT apparatus disclosed in Patent Document 1, a dot matrix type display panel is provided on the outside of the gantry for displaying various information related to the progress of CT imaging. According to this CT apparatus, character information and the like can be given to the subject.

Further, in the CT apparatus disclosed in Patent Document 2, a thin image display and a support member that is deformable and that is interposed between the gantry and the thin image display and holds the shape in a deformed state are provided. . According to this CT apparatus, the operator can manually set the display device at a desired angle.
Japanese Patent Laid-Open No. 2002-165783 JP-A-10-118057

However, the conventional method described above has a problem that the display is difficult to see from the subject depending on the position of the subject and the arrangement of the apparatus. For example, the position of the subject's head relative to the gantry is different before and after introduction of the subject into the gantry. In addition, if the subject is placed on the top so that the direction from the bed mechanism installation portion to the gantry is the head direction with respect to the lower limb of the subject (head first), Conversely, the subject may be placed with the direction from the part of the bed mechanism installed on the floor to the gantry as the direction of the lower limb (foot first). The position of the subject's head relative to the gantry differs depending on which form is used for diagnosis. Further, in the helical scan described above, the position of the subject fluctuates during the scan in which the breath holding instruction is important.

In the conventional method described above, the display is fixed with respect to the gantry, so that the display becomes difficult to see from the subject depending on the position of the subject. In other words, in some device arrangements, even if the display can be seen well from the subject, it will not be easily visible in other device arrangements.

In the case of head first and foot first, the visual field of the subject with respect to the display is turned upside down. Therefore, when information is transmitted to the subject, the subject needs to read upside down characters, which makes it difficult for the subject to read information on the display.

These hinder accurate instructions to the subject. This is an important issue especially in the diagnosis of hearing impaired people who are difficult to give instructions by voice.

Further, such a defect is more remarkable when a display device having a narrow visible angle such as a liquid crystal display is used. However, the liquid crystal display is thin and has a variety of display contents.
Moreover, since the construction cost can be kept low, there is an advantage of using a liquid crystal display.

In the conventional CT apparatus as shown in Patent Document 1, since the dot matrix is used, the visible angle is somewhat wide. However, the information that can be provided to the operator who is working and the subject watching the display is limited to simple information such as a few characters, and there is no change in that the angle that can be seen is limited. After all, the display becomes difficult to see depending on the arrangement of the subject.

Further, in the CT apparatus disclosed in Patent Document 2, the support angle of the display with respect to the gantry can be changed, but it must be changed manually.

For these reasons, the conventional CT apparatus does not always provide sufficient guidance to the subject by information from the display.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a medical diagnostic apparatus in which a subject can accurately and easily grasp information related to imaging.

In order to achieve the above object, a CT apparatus of the present invention comprises a gantry unit for imaging a subject, a bed mechanism having a top plate on which the subject is placed and movable in the body axis direction of the subject. A display unit that is supported by the gantry unit and displays information related to the imaging, an operation console unit that performs control for causing a plurality of operations of the gantry unit and the bed mechanism to be performed in a predetermined order, and operations based on the console unit or we obtained the information regarding the order of the plurality of operation was, the image indicating the information for the to visually recognize the subject on the display device, the image showing the information for viewing the operator, the Display control means for selectively switching and displaying corresponding to a plurality of operations, and changing the arrangement of the display unit with respect to the gantry unit
Switching of the display of the at least two types of information performed by the display drive means and the display control means
Corresponding to drive control means for controlling the drive mechanism to switch the angle of the display
It is characterized in that it comprises, when.

According to the present invention, it is possible to provide a medical diagnostic apparatus in which a subject can accurately and easily grasp information related to imaging.

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

FIG. 1 is a block diagram showing an embodiment of a CT apparatus according to the present invention. The CT apparatus according to the present embodiment obtains a tomographic image of a subject by, for example, X-ray imaging, and includes a bed mechanism 10, a gantry unit 20, a display 30, and a support mechanism 40.

The bed mechanism 10 is configured to place the subject OBJ on the top plate 11 and move it in the body axis direction and the vertical direction. Furthermore, the top plate 11 has a headrest 12 for fixing the head of the subject OBJ. As a result, it is possible to prevent the head of the subject OBJ from being shaken during X-ray scanning, and to prevent image deterioration.

Moreover, the gantry part 20 has the entrance / exit 21 in the front surface and the rear surface, and the opening part of the entrance / exit 21 is expanded in the taper shape. The top plate 11 on which the subject OBJ is placed through the doorway 21
The subject OBJ is carried in and out. A slice plane SLS is installed at a position about half the thickness of the gantry section 20 from the entrance / exit 21, and the target slice portion of the subject OBJ is aligned with the slice plane SLS, and the X-ray source 22 and the detection section 23 is the gantry section 20
It is scanned by rotating the inside of the.

Further, the gantry unit 20 may be installed on the floor so as to be rotatable about a body axis of the subject OBJ and an axis orthogonal to the vertical axis. With this rotation angle (tilt angle), a multi-dimensional tomographic image of the subject OBJ can be obtained.

The display device 30 is configured using, for example, a liquid crystal display. A liquid crystal display is preferable in that it can display various images freely, has abundant information that can be given, is low in cost, and is small. A plasma display may be used in addition to the liquid crystal display. The plasma display is small and no backlight is required. In addition, a CRT may be used. CRT can reduce the construction cost of the indicator.

The indicator 30 is attached to the gantry unit 20 via a support mechanism 40. Further, the support mechanism 40 supports the display 30 so as to be rotatable. Further, depending on the site to be diagnosed, the head of the subject OBJ may be located on both the front surface and the rear surface of the gantry unit 20,
As shown in FIG. 1, the indicator 30 and the support mechanism 40 are desirably provided at two locations on the front surface and the rear surface of the gantry unit 20.

Next, the control mechanism of the CT apparatus of FIG. 1 will be described with reference to FIG. The operation console 1 includes an input device 2 for inputting instructions and information from the operator, a central processing device 3 for executing image reconstruction processing, and control for outputting control signals and the like to the bed mechanism 10 and the gantry unit 20. It has an interface 4, a data collection buffer 5 for collecting data acquired by the gantry unit 20, a monitor 6 for displaying images and the like, and a storage device 7 for storing various data and programs.

Generally, the operation console 1 is installed in an operation room provided separately from the examination room in which the gantry unit 20 and the bed mechanism 10 are installed. As a result, the operator's gantry 20
The exposure by the X-rays radiated from is prevented. The operator can grasp the state of the examination room from the glass window of the operation room.

The bed mechanism 10 includes a bed mechanism controller 13. Thus, remote control is possible by exchanging information for controlling the operation console 1 and the bed mechanism 10 via the control interface 4.

The gantry unit 20 includes an X-ray controller 25 that exchanges control information for scanning X-rays with the operation console 1 and a tilt angle controller 26 that exchanges control information for tilt angle adjustment operation of the gantry unit 20. Have. As a result, the operation console 1
Remote control is possible. Data obtained by scanning with X-ray radiation from the gantry unit 20 is sent from the data collection unit 24 to the data collection buffer 5.

The display 30 can display an image or the like given from the central processing unit 3 via the display controller 31. Further, the display 30 can be rotated via the support mechanism controller 41 according to control information from the central processing unit 3.

Next, the operation of such a CT apparatus will be described with reference to FIGS. First, a preparation operation before starting X-ray scanning will be described. FIG. 3 is a flowchart showing the flow of the preparation operation of the CT apparatus in this embodiment. The rectangle in FIG. 3 represents the operation of the operator, and the parallelogram represents the operation of the display 30.

First, in step S100, the operator turns on the apparatus shown in FIG. 2 and activates the apparatus.

The X-ray source 22 built in the gantry unit 20 needs to be warmed up before the start of imaging when it is not used for a certain period of time. Therefore, in step 101, the central processing unit 3 derives the time elapsed since the previous use of the device, determines whether or not the X-ray source 22 needs to be warmed up, and if warming up is necessary, the step S102. If not necessary, the process proceeds to step S105.

In step S102, the central processing unit 3 prompts the operator to start warm-up by causing the display 30 to display a character image such as “warming up is necessary” stored in the storage device 7.

In step S103, the operator inputs to the input device 2 and starts warming up. Since X-rays are emitted from the X-ray source 22 built in the gantry unit 20 during the warm-up, it is necessary to prevent an operator from staying in the examination room. Therefore, in step S104, the indicator 30 is “warming up” or
Characters such as “radiation is occurring” are displayed to prevent the operator from being in the laboratory by mistake.

In step S105, the display 30 displays “no patient information input” or the like, and prompts the operator to input identification information of the subject OBJ to be diagnosed.

  Next, in step S106, the operator inputs identification information of the subject OBJ.

Thereafter, in step S107, a part of identification information such as the name of the subject OBJ is displayed on the display 30 based on the input information.

In step S108, the subject OBJ enters the examination room and is placed on the bed mechanism 10. At this time, since information such as the name of the subject OBJ is displayed on the display 30, the operator and the subject OBJ confirm whether the patient is confused by the displayed content. Thereafter, the subject OBJ and the gantry unit 20 are aligned. The operator adjusts the position of the bed mechanism 10 on which the subject OBJ is placed, using light emitted from a light projector provided in the gantry unit 20 as a guide.

As step S109, the display 30 displays information for guiding the operation of the bed mechanism 10 to the operator who adjusts the position of the bed mechanism 10 with the start of the position adjustment of the bed mechanism 10.

As the contents to be displayed, there are a guide for a diagnostic procedure such as “Please align the top plate”, a position coordinate of the bed, and a guide for an operation method of the input device 2 provided in the gantry unit 20.

In steps S100 to S109, the display 30 is preferably supported at an angle that is easy for the operator to visually recognize. For example, it is assumed that the liquid crystal screen of the display device 30 is in a state perpendicular to the floor surface. In this case, visual recognition from an operator located relatively far away or an operator standing in the vicinity of the apparatus is easy.

Further, in step 109, for example, as shown in FIG. 5, the support mechanism 40 is placed so that the display 30 is positioned at a preset angle that is considered to be easily seen by the subject OBJ placed on the bed mechanism 10. It may be driven to display the characters “in preparation” or other appropriate relaxing video or television image for the subject OBJ. Here, the direction of the displayed image is assumed to correspond to the head first, and the central processing unit 3 displays the image with the direction of the support mechanism 40 as the upward direction.

In step S110, the operator selects a diagnosis plan via the input device 2. The main elements included in the plan to be selected are settings such as the target site, the position of the subject, the scan mode, the imaging angle, and the imaging slice thickness. Here, the position of the subject includes head first or foot first, whether to use the headrest 12, and the like. The selection of the photographing mode is a selection of a scanning method such as S & S scan, S & V scan, helical scan or the like. Further, the tilt angle of the gantry unit 20 is determined by the selection of the shooting angle.

On the other hand, as step S111, information on a diagnosis plan based on the above plan may be displayed on the display 30 of the gantry unit 20. The display of the diagnosis plan may be displayed on a part of the screen of the display 30 in the subsequent steps, and may always indicate the progress of the plan.

Next, as step S112, the operator confirms the selected plan by visually recognizing the monitor 8 and the display 30, and confirms that the diagnosis is performed with the plan. If confirmed, the process proceeds to step S113, and if canceled, the process returns to step S110.

When the plan input is confirmed as step S113, the central processing unit 3 obtains information such as introduction into the gantry unit 20 using the headrest 12 with the headrest 12, for example, and thereby relative to the head of the subject OBJ on the top board 11 is obtained. The correct position is calculated. Further, the central processing unit 3 acquires the position information of the top plate 11 from the bed mechanism controller 12 and calculates the position of the subject OBJ head relative to the gantry unit 20. In this way, the central processing unit 3 makes the subject OB
Know the position of J's head.

Further, the central processing unit 3 obtains the tilt angle of the gantry unit 20 from the tilt angle controller 26 and combines it with the information obtained by the above-described processing, so that the line of sight from the head of the subject OBJ to the display unit 30 is displayed on the display unit. The support angle of the display 30 that is perpendicular to the 30 liquid crystal surfaces is calculated. The calculated control information is transmitted to the support mechanism controller 41, and the support mechanism 40 is driven. Thus, the display 30 can be changed to an angle that can be easily seen from the subject OBJ.

Next, the operation at the time of X-ray scanning after the preparation operation of the CT apparatus in the present embodiment will be described. Here, for example, an operation when the imaging region is an abdomen, the scanning method is a helical scan, and the head is first introduced into the gantry unit 20 will be described. FIG. 4 is a flowchart showing the flow of the scanning operation of the CT apparatus in this embodiment.

Since the set plan is head first, the display 30 and the top plate 11 provided on the front surface of the gantry unit 20 are arranged as shown in FIG. In this case, subject O
Since the head of the BJ is located behind the gantry unit 20, the indicator display 30 provided on the rear surface of the gantry unit 20 is driven.

The central processing unit 3 determines the top and bottom of the image displayed on the display 30 according to the viewpoint of the subject OBJ, and transmits a control signal to the display controller. Here, the displayed image is displayed with the entrance 21 of the gantry unit 20 indicated by the arrow A downward.

First, in step S <b> 201, the operator causes the CT apparatus to start an operation for X-ray scanning via the input device 2. Usually, an “X-ray scan start switch” or the like is provided on the input device 2, and an X-ray scan preparation operation is started by pressing this switch.

At this time, as step S202, the display 30 displays "Preparing" as shown in FIG. 8, and at the same time, the central processing unit 3 derives the time required for completing the driving of the device to the initial state. Then, the status bar is displayed on the display 30. This status bar is a generally well-known form and represents the progress of an operation with some mark moving in the direction of the arrow. “Start” or the like is displayed near one end of the status bar, and “End” or the like is displayed at the other end.

In step S203, the CT apparatus performs a preparatory operation to drive the gantry unit 20 and the bed mechanism 10 to an initial state suitable for a desired diagnosis.

In response to this, in step S204, the central processing unit 3 acquires the position information of the top board from the bed mechanism controller 11, and calculates the position where the display 30 is easily visible from the subject OBJ.
Then, control information is transmitted to the support mechanism controller 41 to drive the support mechanism 40.

Next, if it is determined that the preparation is not completed in step S205, the process returns to step S202 if it is not completed. By repeating steps S202 to S204 until preparation for X-ray scanning is completed, the display of the preparation progress status on the display 30 and the support angle for the gantry unit 20 are updated one by one.

When the driving to the initial state is completed, in step S206, the operator examines the subject OB.
J and other surrounding conditions are confirmed, and if there is no problem, the X-ray scan start button on the input device 2 is pressed again.

In step S207, the central processing unit 3 that has received the signal displays on the display 30 an image that prompts the subject OBJ to hold his / her breath, for example, “Please hold your breath”. Subject OBJ
Recognizes the instruction from the display 30, and after an appropriate time to hold the breath, step S20
Move to 8.

In step S208, the central processing unit 3 calculates the time until the X-ray scan is completed, and displays a status bar as described above on the display unit 30 together with a message such as “Now taking a picture. By displaying as shown in FIG. 9, the progress of the scan is transmitted to the subject OBJ. Next, as step S209, the CT apparatus performs a scanning operation.
Since the helical scan is performed here, the movement of the top plate 11 and the X-ray emission are performed simultaneously. Accordingly, in step S210, the central processing unit 3 drives the support mechanism 40 in conjunction with the movement of the top board 11 so that the display 30 can be easily seen from the subject OBJ.

Here, the mode of interlocking of the support mechanism 40 is not limited to one. For example, while the top plate 11 is moving,
The support mechanism 40 may perform continuous interlocking corresponding thereto, or may perform stepwise interlocking such that the angle of the support mechanism 40 changes when the top plate 11 moves to some extent. Although the viewing angle of the liquid crystal display is narrower than that of a CRT monitor or the like, it is possible to view in a certain range, and therefore it is not always necessary that the line of sight of the subject OBJ and the screen of the display device 30 are directly perpendicular.

If it is determined that the X-ray scan is completed in step S211, the process returns to step S208 if it is not completed. By repeating steps S208 to S210 until the X-ray scan is completed, the display 30 displays the X-ray scan progress and the gantry unit 2
The support angle for 0 is updated one by one.

When the X-ray scanning is completed, an image representing the release of breath holding such as a character “please breathe” is displayed on the display 30 in step S212.

Here, the case of the head first is taken as an example. However, for example, in the case of introduction to the gantry unit 20 by foot first as shown in FIG. 7, only the display provided on the front surface of the gantry unit 20 is supported. Is possible. In this case, the vertical direction of the displayed image is the support mechanism 40.
Display direction as down.

In the operation example described above, an example of the display mode for the display 30 has been specifically described, but the present invention is not limited to this. Since the display 30 uses a liquid crystal display, various other information can be displayed in various modes. For example, when an instruction such as “Please hold your breath” is displayed on the subject OBJ, the blinking display or the scrolling display can prompt the subject OBJ to pay attention. Further, by displaying symbols and various forms together with the character information, there is a possibility that the subject OBJ can easily understand the instructions sensuously.

Further, depending on the arrangement of the apparatus and the subject, that is, the position, orientation, angle, or posture, the subject O
The distance between the head of BJ and the display 30 is different. Therefore, the central processing unit 3 may calculate the distance between the display 30 and the subject OBJ, and may control the size of characters and symbols displayed on the display 30 according to the distance. For example, in the case of foot first, the head of the subject OBJ is relatively far from the display device 30, so that the characters displayed on the display device are relatively large characters,
In the case of head first, it is conceivable to increase the amount of information that can be displayed using relatively small characters.

This further improves the visibility of the display 30 and the amount of information that can be transmitted to the subject OBJ. Furthermore, if the instruction to hold the breath is given by voice and an image for relaxing the subject is displayed on the display unit 30 as appropriate, there is a possibility that the subject OBJ is effective when it is a young person. is there.

In order to display such a relaxed video, a mechanism that can be connected to an external video device (such as a video deck or a DVD player) may be provided in the control interface 4 or the like. By displaying the video signal from the connected video equipment on the display 30, more diverse information can be easily displayed.

When the subject OBJ is punctured, the indication display 30 displays a real-time CT.
An image may be displayed so that the angle supported by the instruction display 30 can be easily seen by an operator near the gantry unit 20.

Thus, according to the above-described embodiment, the display 30 can be rotated to change the angle of the display surface, and the displayed image can be inverted upside down. According to the configuration shown in FIG. 1, the display 30 can be rotated by 180 ° from a vertical position, and the subject OBJ is always in a state in which a variety of image information by using the liquid crystal screen is always easy to see. Visual observation is possible. As a result, the subject OBJ is accurately held and the operator's erroneous operation can be avoided. Therefore, it is possible to prevent X-ray exposure of the subject due to failed imaging and re-scanning, a decrease in diagnostic efficiency, and exhaustion of the apparatus.

Further, in the above embodiment, the angle of the instruction display 30 can be automatically changed from the inputted examination plan and the position information of the bed mechanism 10. Therefore, the operator does not need to perform any special operation as compared with the conventional case, and the operation of the apparatus in the present embodiment does not impose any burden on the operator as compared with the conventional case.

For these reasons, according to the present embodiment, the subject can accurately and easily grasp information related to imaging.

Moreover, in the said Example, although the indicator 30 described only the function which outputs information, it is not restricted to this. For example, the liquid crystal screen of the display device 30 may be a touch panel type or the like, and may be a means for inputting information. In this case, the operator or the subject OBJ can appropriately operate each part of the apparatus or transmit information to others from the display device.

Moreover, in the said Example, although the indicator 30 changes the angle with respect to the gantry part 20 by the drive of the support mechanism 40, it is not restricted to this. For example, the display device 30 may be moved using a support mechanism having a mechanism that can expand and contract or slide in the vertical direction and the front-back direction with respect to the gantry unit 20.

Further, when a monitor having a relatively wide viewing angle such as a CRT monitor is used as the display 30, the display 30 is not rotated, and the display 3 is considered in consideration of the line of sight of the subject OBJ and the angle of the monitor screen.
It is also conceivable to change the display mode on 0. For example, the line of sight of the subject OBJ and the display 3
It is conceivable that the display image on the display 30 is expanded and displayed in the body axis direction of the subject OBJ as the angle formed with the screen of 0 is away from 90 °. In this way, depending on the angle of the display device 30, it can be prevented that the subject OBJ is difficult to acquire information due to the impression that the displayed characters are crushed.

In the above embodiment, an example of application to an X-ray CT apparatus has been described, but the present invention is not limited to this. In addition, it goes without saying that any medical diagnostic apparatus having a gantry unit and a movable bed mechanism for introducing a subject into the gantry unit can be applied. Examples of the medical diagnostic apparatus having such a configuration include an MRI (magnetic resonance imaging apparatus) that detects a magnetic resonance of a subject due to a magnetic field and obtains a tomographic image of the subject.

The block diagram which shows the Example of CT apparatus based on this invention. 1 is a block diagram showing an example of a control mechanism of the CT apparatus of FIG. The flowchart which shows the flow of preparation operation | movement of CT apparatus. The flowchart which shows the flow of the scanning operation | movement of CT apparatus. The figure which shows the relationship of the test object in the head first, and the indicator of the front surface of a gantry part. The figure which shows the relationship of the test object in the head first, and the indicator of the front surface of a gantry part. The figure which shows the relationship between the test object and indicator in foot first. The figure which shows an example of the image displayed on a display device during the scan preparation operation. The figure which shows an example of the image displayed on a display device during a scan of X-rays. The block diagram which shows the conventional CT apparatus.

Explanation of symbols

1 Operation console 2 Input device 3 Central processing unit 4 Control interface 5 Image data collection buffer 6 Monitor 7 Storage device 10 Bed mechanism 11 Top plate 12 Headrest 13 Bed mechanism controller 20 Gantry unit 21 Entrance / exit 22 X-ray source 23 Detection unit 24 Data collection Unit 25 X-ray system controller 26 Tilt angle controller 30 Display unit 31 Display controller 40 Support mechanism 41 Support mechanism controller

Claims (5)

A gantry for imaging the subject,
A bed mechanism having a top plate on which the subject is placed and movable in the body axis direction of the subject;
A display for displaying an image that is supported by the gantry unit and indicates information related to the photographing;
An operation console unit for performing control for causing a plurality of operations of the gantry unit and the bed mechanism to be performed in a predetermined order;
Based on the operation console unit or we obtained the information regarding the order of the plurality of operation was, the image indicating the information for the to visually recognize the subject on the display device, the image showing the information for viewing the operator, Display control means for selectively switching and displaying corresponding to the plurality of operations;
A drive mechanism for changing the arrangement of the display unit with respect to the gantry unit;
Corresponding to the display switching of the at least two types of information performed by the display control means,
Drive control means for controlling the drive mechanism to switch the angle of the display;
A medical diagnostic apparatus comprising: The operation console unit further has a function of acquiring information regarding the arrangement of the subject specified by the operator with respect to the top plate ,
When displaying information to be visually recognized by the subject on the display, the drive mechanism is controlled in response to information on the placement of the subject with respect to the top plate acquired from the operation console unit. Drive control means;
The medical diagnostic apparatus according to claim 1, further comprising: The operation console unit further has a function of acquiring information related to the arrangement of the subject specified by the operator with respect to the top plate,
The display control means corresponds to the information related to the arrangement of the subject with respect to the top plate obtained from the operation console unit when displaying information for causing the subject to visually recognize on the display. The medical diagnostic apparatus according to claim 1, wherein the vertical direction of the information displayed on the screen is changed. The information related to the arrangement of the subject with respect to the top plate is information about whether the subject is introduced into the gantry unit by head first or foot first. The medical diagnostic apparatus according to 2 or 3 . The display is provided on the front surface that is the surface facing the bed mechanism in the gantry and the rear surface that is the opposite surface.
The display control means includes
When the subject is introduced into the gantry unit by head first, the function of switching the vertical direction of the information form displayed on the display provided on the front surface of the gantry unit in the reverse direction;
And when the subject is introduced into the gantry unit by foot first, at least one of the functions of switching the vertical direction of the information displayed on the display provided on the rear surface of the gantry unit in the reverse direction is provided. The medical diagnostic apparatus according to claim 3 , further comprising:

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