JP2002000596A - X-ray ct system loading vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an X-ray CT system loading vehicle capable of controlling an operation of a mounted X-ray CT system in response to a space condition of a CT chamber or a power source capacity. SOLUTION: In the X-ray CT system loading vehicle 100, a slide stroke of a top plate 122a of a bed 122 to a trestle 121 side and a tilting angle of a tilting mechanism of the trestle are settable in response to the space condition of the CT chamber 120. The maximum output of an X-ray tube is settable in response to the power source capacity of a power source 131. Thus, even when the X-ray CT system of a different type is installed, an interference of the trestle or the top plate with the CT chamber is prevented, and an overload of the power source is prevented as well.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an X-ray CT apparatus mounted on a self-propelled vehicle, and to a vehicle equipped with an X-ray CT apparatus for performing image diagnosis in a disaster-stricken area or a mountainous area. In particular, the present invention relates to a vehicle equipped with an X-ray CT apparatus which can control the operation of the mounted X-ray CT apparatus according to the space condition of the CT room or the power supply capacity.

[0002]

2. Description of the Related Art X-rays are emitted from the periphery of a subject, the amount of X-rays transmitted through the subject is measured, and the obtained projection data is subjected to image reconstruction processing using a computer. An X-ray CT apparatus for obtaining a tomographic image of an examiner is effective in early detection of a disease, determination of an appropriate treatment policy, and the like. In addition, by moving a so-called X-ray CT-equipped vehicle with an X-ray CT device mounted on a self-propelled vehicle such as a bus to the disaster-stricken area, image diagnosis such as the presence or absence of fractures and damage to internal organs at the site is performed. It is also used for patrol diagnosis and mass screening in depopulated areas such as mountainous areas. In particular, recently, with the advent of a helical scanning X-ray CT apparatus, a chest region can be imaged during one breath, and a helical scan is also used for mass screening for early detection of chest disease. The realization of a vehicle equipped with an X-ray CT apparatus equipped with a scanning X-ray CT apparatus has been strongly desired.

[0003] As a conventional vehicle equipped with an X-ray CT apparatus, one disclosed in Japanese Utility Model Registration No. 3027769 is known, and its outline is shown in FIG.
That is, at the center of the large bus type vehicle 1 in the length direction,
The gantry 2a and the bed 2b of the X-ray CT apparatus are mounted, and the power supply device 3 and the high-voltage generator 4 are installed in the space between the driver's seat 18 at the front of the vehicle and the gantry 2a and the bed 2b. In addition, an X-ray monitor 5 and a console 6 are provided. In addition, an entrance 12 for a subject on a stretcher or a wheelchair and a lift device 15 are provided on the rear wall surface of the vehicle 1, and an entrance 13 for a subject who can walk by himself is provided on the rear side wall surface of the vehicle 1. Things. Other vehicles equipped with an X-ray CT apparatus are disclosed in JP-A-6-154202 and JP-A-8-12.
The one disclosed in Japanese Patent No. 7282 and the like is also known.

[0004]

However, in the apparatus disclosed in Japanese Utility Model Registration No. 3027769, the power supply device 3 is installed in the same room as the gantry 2a and the bed 2b of the X-ray CT apparatus, so that the safety is improved. There is a problem that the subject is uneasy due to noise and gives the subject under examination discomfort due to noise. Further, since the apparatus disclosed in Japanese Patent Application Laid-Open No. 6-154202 performs X-ray CT imaging with the subject sitting on a chair, the X-ray C
Not suitable for T shooting. Further, Japanese Patent Application Laid-Open No.
No. 82 discloses an industrial X-ray CT apparatus mounted on a large trailer, which is used for patrol diagnosis or mass screening in a depopulated area such as a mountain area due to problems such as road conditions. It was not suitable as. In these conventional vehicles equipped with an X-ray CT apparatus, a CT room or the like is designed in accordance with the installed X-ray CT apparatus, and it is difficult to replace the X-ray CT apparatus with a different type such as updating the model. Was. The present invention has been made to solve such a conventional problem.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, a gantry and a bed for an X-ray CT apparatus formed at a substantially intermediate portion of a self-propelled vehicle having a driver's seat at the front are installed. A CT room, and the X-ray CT formed behind the CT room.
In a car equipped with an X-ray CT apparatus equipped with a console for operating a gantry and a bed and processing data and a staff room including a monitor for displaying a CT image, the bed includes the gantry side A slidable top plate and a tilt mechanism on the gantry, and a slide stroke of the top plate and a tilt angle of the tilt mechanism can be set according to a space condition of the CT room. It is a feature. This allows
Even when a different type of X-ray CT apparatus is installed in a predetermined self-propelled vehicle, it is possible to prevent the gantry or the top plate from interfering with the CT room.

Further, another invention provides a CT room in which a gantry and a bed of an X-ray CT apparatus are installed at a substantially intermediate portion of a self-propelled vehicle having a driver's seat at the front, and the CT room and the driver's seat A power supply room in which a power supply device formed between the
Console and CT for operating a gantry and a bed of the X-ray CT apparatus formed behind the T room and for processing data
An X-ray CT apparatus equipped with a staff room in which equipment including a monitor for displaying an image is installed;
The maximum output of X-rays generated by the X-ray CT apparatus can be limited according to the capacity of a power supply device installed in the power supply room. Specifically, the limitation of the maximum output of the X-ray is performed by controlling a tube current and / or a tube voltage of the X-ray tube. As a result, it is possible to prevent the power supply from being stopped due to a shortage of capacity, causing an abnormal operation of the computer, and the occurrence of problems such as loss of collected valuable image data.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a vehicle equipped with an X-ray CT apparatus according to the present invention will be described in detail with reference to FIGS. In these drawings, the same parts are denoted by the same reference numerals. FIG. 1 is a plan view showing an overall layout for explaining an embodiment of a vehicle equipped with an X-ray CT apparatus according to the present invention, and FIG. 2 is a side view of the same. In FIG. 1, the ceiling portion of the vehicle is not shown. Now, the X-ray CT-equipped vehicle 100 according to the present invention has a CT room 120 formed substantially in the middle of a self-propelled vehicle having a driver's seat 110 at the front, such as a large bus type. Part 2 between CT room 120
A power supply room 130 having a layer structure is formed, and a staff room 140 is formed behind the CT room 120. An entrance 150 for a subject or the like is formed on the rear wall of the self-propelled vehicle so as to communicate with the staff room 140, and the staff room 140 also serves as a changing room for the subject. The CT room 120 has the largest space in the self-propelled vehicle, and the gantry 121 and the bed 122 of the X-ray CT apparatus are fixedly installed on the floor, and the air conditioner 123 and the switchboard 1
24 etc. are installed. The X-ray CT apparatus usually includes a gantry 121, a bed 122, and a console 141. The console 141 is provided in a staff room 140 as described later.

FIG. 3 shows an enlarged view of a gantry 121 and a bed 122 provided in the CT room 120. In the center of the gantry 121, a through hole 121a serving as an imaging port is provided.
Is formed, and the subject placed on the top plate 122a of the bed 122 is sent into the imaging opening 121a by sliding the top plate 122a. This top plate 1
The slide stroke of 22a toward the photographing port 121a is
Usually, the maximum is about 1800 mm, but when the space condition of the CT room 120, for example, the distance between the partition wall 120a separating the CT room 120 and the power supply room 130 and the gantry 121 cannot be sufficiently secured, For example, the slide stroke can be limited to a maximum of 1600 mm according to the distance therebetween. The setting of the limit value is performed, for example, by changing the slide limit value of the top plate 122a by the bed control firmware. However, if the medical staff erroneously instructs the slide stroke to be equal to or larger than the limit value during the imaging operation. If so, a warning is issued to reset the settings. This depends on the type of the self-propelled vehicle or the type of the X-ray CT apparatus installed in the CT room 120, etc.
It is expected that the size of CT room will be different.
This is to prevent the sliding top plate 122a from interfering with the partition wall 120a when 20 is small.

Although not shown in the frame 121, a rotating part provided with an X-ray tube and an X-ray detector is provided so as to face each other with the imaging opening 121a therebetween, and further drives the rotating part. A tilt mechanism for tilting the drive unit and the gantry 121, a high voltage generator for generating a high voltage to be supplied to the X-ray tube, a signal amplifier for amplifying a signal detected by the X-ray detector, and the like are housed. The tilt angle of the gantry 121 by this tilt mechanism is also usually in the range of +30 degrees to −30 degrees, but the space condition of the CT room 120, for example, the CT room 1
In a case where the distance between the partition wall 120a that separates the power supply room 20 and the gantry 121 or the height dimension between the floor and the ceiling of the CT room 120 cannot be sufficiently secured, the tilt angle is set to, for example, It can be set appropriately according to the space condition of the CT room 120 so as to be in the range of +20 degrees to −20 degrees. This is also the top plate 12 of the bed 122
Similarly to 2a, even if various types of gantry 121 of different types are installed in the CT room 120, the ceiling and the partition wall 12
This is to prevent interference with 0a. This setting also
For example, this is performed by changing the limit tilt angle of the tilt mechanism by tilt mechanism control firmware.
An imaging procedure performed while determining whether the slide stroke of the top panel 122a and the tilt angle of the gantry 121 are appropriate is described later. And the gantry 1
The surface of 21 is covered with a cover, and this cover is divided into a front cover 121b, a side cover 121c, an upper cover 121d, a back cover 121e, and the like, and general maintenance is shown in FIG. In this way, the front cover 121b is designed to be opened to the ceiling side of the self-propelled vehicle so that the internal devices can be accessed from the front.

The side cover 121c of the gantry 121
The handle 121f is provided so as to protrude therefrom. The handle 121f is used for fixing or releasing the fixing of the tilt mechanism. When the vehicle 100 with the X-ray CT apparatus is running, the handle 121f is fixed during running so as not to damage the tilt mechanism due to vibration or the like. When the vehicle 100 equipped with the X-ray CT apparatus is stopped at a predetermined position and the X-ray CT apparatus is operated, the fixation is released. Note that the running of the vehicle 100 equipped with the X-ray CT apparatus 100
At the start of operation of the line CT apparatus, the display 125 is provided with a wall in the CT room 120 so as to always display the operating state of the handle 121f, that is, the state of fixing / releasing the tilt mechanism, so as not to give a misunderstanding to an operator or the like. It is provided as part of safety equipment. Further, the bed 122 can be lowered to about 35 cm above the floor with the top plate 122a retracted in order to facilitate the getting on and off of the subject.
An interlock circuit is provided so that 2a cannot slide.

Next, the power supply chamber 130 will be described. The power supply room 130 is located between the driver's seat 110 and the CT room 120 and is partially formed in a two-layer structure. A power supply device 131 composed of a generator is installed in a lower part, and a power supply Air cooling equipment 132 such as a fan for cooling the device 131
Is installed. As described above, the power supply chamber 130 is formed in a two-layer structure, and a power supply device 131 which is a heavy material is provided below the power supply chamber 130.
Are arranged in a direction orthogonal to the longitudinal direction of the self-propelled vehicle, so that the space efficiency of the self-propelled vehicle is improved. Further, since the power supply room 130 is an independent room, the subject in the CT room 120 is less likely to be discomfort due to noise,
Safety is also improved. Then, from this power supply room 130, X
The necessary power is supplied to each component of the X-ray CT apparatus, but the space of the power supply room 130 is limited, and it is difficult to install a large-sized power supply device 131. Not enough power is to be supplied. Therefore, the vehicle 100 equipped with the X-ray CT apparatus according to the present invention can adjust the load according to the capacity of the power supply device 131, and the means will be described later.

Next, the staff room 140 formed behind the CT room 120 will be described. Staff room 14
Numeral 0 denotes a room mainly used by medical staff such as doctors and technicians to operate the X-ray CT apparatus and interpret the acquired CT images. The staff room 140 includes a console 141 for an X-ray CT apparatus, a monitor 142 for displaying a CT image, a computer-aided diagnosis system (lung cancer CAD) 143a for lung cancer screening, a communication system 143b, and an analyzer 143c. Various devices 1
43 are arranged along one side wall surface of the staff room 140, in other words, along one surface of the longitudinal side wall of the self-propelled vehicle. FIG. 4 is an enlarged view of a console 141 installed in the staff room 140. The console 141 includes a table 141a, a control unit 141b placed below the table 141a, a keyboard 141c placed above the table 141a, and a mouse 1
41d. The monitor 142 and monitors of other devices 143 are also placed on the table 141a. Then, various setting operations of the X-ray CT apparatus, for example, setting of a tube voltage and a tube current for setting conditions of X-rays emitted from the X-ray tube in the gantry 121, and positioning an imaging region in the imaging opening 121a. The setting of the slide stroke of the couch top 122a and the setting of the number of images to be taken are performed by medical staff inputting instructions to the control unit 141b using the keyboard 141c and the mouse 141d. At this time, the control unit 141b determines whether the load is within the range of the capacity of the power supply device 131 based on the input tube voltage and tube current, and when it is determined that the load exceeds the power supply capacity, An X-ray exposure is suspended by issuing an alarm. In this case, when the medical staff changes the setting, if it is determined that the X-ray irradiation condition is within the range of the power supply capacity, the X-ray is normally irradiated and CT data is collected.

That is, as described above, the vehicle 100 equipped with the X-ray CT apparatus has a power supply 1 such as a generator mounted thereon.
31 supplies the power of the related equipment including the X-ray CT apparatus, and its capacity is limited. For example,
When the power supply capacity of the power supply device 131 is only 75 KVA, the air conditioner 123 and other related equipment mounted on the vehicle 100 equipped with the X-ray CT device require about 15 KVA, so the capacity that can be supplied to the X-ray CT device is 60 KVA. Becomes
However, about 75 KVA is desired only for the X-ray CT device, but since it cannot be secured, the tube voltage of the X-ray tube at the time of X-ray irradiation, which requires the most power among the X-ray CT devices, or By limiting the tube current, the power supply capacity is not exceeded. This control is
When the irradiation conditions (tube voltage, tube current) of the line are set, the required electric energy is calculated from the set values, and the calculated amount of power is calculated.
This is compared with a power supply capacity of 1 (correctly, an allowable power amount obtained by subtracting electric power required for related facilities and the like). Therefore, when X-rays are irradiated under the maximum output condition of a normal X-ray CT apparatus, an overload state may occur, and if this state is repeated, it may cause a failure of the power supply device 131 or the power supply may be stopped. There is a possibility that the operation of the computer may be abnormal or the collected valuable image data may be lost. However, by performing the above-described control, such inconvenience can be solved.

FIG. 5 is a flowchart showing a shooting procedure performed while judging whether or not the above-described setting of the slide stroke of the top plate 122a and the tilt angle of the gantry 121 is appropriate. That is, when performing individual imaging operations with the X-ray CT apparatus, the medical staff uses the keyboard 1
By operating 41c or the like, first, as step 1 (ST1), a slide stroke of the top plate 122a is set according to the imaging region. Then, in ST2, it is determined whether or not the set stroke is within a predetermined setting range, and when it is determined that the stroke is beyond the setting range, the process proceeds to ST3, and a warning that resetting is necessary is required. The medical staff returns to ST1 according to this warning, and again
The slide stroke 22a is set. On the other hand, ST2
If it is determined that the current value is within the set range, the process proceeds to ST4 to drive the top panel 122a. Then, proceed to ST5,
The tilt angle of the gantry 121 is set. Then, in ST5, it is determined whether or not the set tilt angle is within a predetermined setting range, and when it is determined that the tilt angle is out of the setting range, the process proceeds to ST6 and it is necessary to reset the setting. A warning is issued, and the medical staff returns to ST5 according to the warning and sets a tilt angle again. Then, in ST7, if it is determined that it is within the setting range, the process proceeds to ST8, in which the tilt mechanism is driven, and the setting operation on the mechanism ends.

Similarly, FIG. 6 is a flowchart showing an imaging procedure performed while judging whether the setting of the X-ray irradiation conditions (tube voltage and tube current) is appropriate. The X-ray irradiation conditions are set according to the imaging site, the age of the subject, the obesity status, and the like. The conditions of the tube voltage and tube current of the X-ray tube set in step 11 (ST11) are Apparatus 1
It is determined in ST12 whether or not the power supply capacity is within the range of the power supply capacity.
Then, the medical staff issues a warning to the effect that resetting is necessary, and returns to ST11 in accordance with this warning, and sets the tube voltage and the tube current again. If it is determined in step ST12 that the power is within the power supply capacity, the process proceeds to step ST14 where the X-ray irradiation is permitted. As shown in FIG. 4, the monitor 142 is rotatable in the horizontal direction on the table 141a. In the swing part 144 fixed so that
It is fixed so as to be integrated by two bands 144a and 144b. Therefore, the monitor 142 can freely change its orientation together with the swing part 144 in the horizontal direction on the table 141a within a predetermined range. Therefore, operability during use can be improved while protecting the device from vibration and the like during traveling.

A microphone 141 e for communicating between a subject who is taking a picture in the CT room 120 and a medical staff in the staff room 140 is provided on the table 14.
1a. When not in use, the mouse 141d is stored in a mouse pocket 141f fixed to the side surface of the monitor 142 as shown. Further, FIG. 4 shows a state in which the keyboard 141c is fixed by a fixing band 144c interposed between the swing part 144 and the table 141a.
This shows a state in which the vehicle 100 equipped with the X-ray CT apparatus travels, and the fixed band 144c is removed when the X-ray CT apparatus operates. The fixed band 144
c has an elasticity formed in a substantially V-shape, and the X-ray CT
When the device-equipped vehicle 100 travels, not only the keyboard 141c but also the monitor 142 can be fixed together with the swing part 144 to protect the keyboard 142c from vibration and the like during traveling. Conventionally, when the vehicle 100 equipped with the X-ray CT apparatus travels, the keyboard 141c and the mouse 141d are detached from the connectors and stored in a protective case or the like, and are connected again when the X-ray CT apparatus is operated. However, the fixation by the fixing band 144c and the storage in the mouse pocket 141f frees the user from this trouble and eliminates the need for a place for placing the protective case, so that the space can be effectively utilized. In addition, not only the illustrated monitor 142 and the keyboard 141c, but also monitors for other devices 143 are similarly attached to the swing part placed on the table 141a, and the keyboard is also fixed by a fixed band. However, these are not shown in FIG.

The control section 141b placed under the table 141a is fixed so that its bottom is fitted to two guide plates 145 fixed to the floor of the staff room 140 via rubber cushions. You. Although illustration is omitted, a roller is provided on the upper surface of the guide plate 145. When a base plate with a slope attached to the bottom of the control unit 141b is slid on the roller and moved in the direction of the arrow. , Are fitted and fixed at predetermined positions. At the time of maintenance or the like, the control unit 141
If one side of b is lifted and pulled out to the left side (opposite side of the arrow) in FIG. 4, since the casters are provided at the bottom of the control unit 141b, it can be easily moved to the left space of the table 141a. . As described above, since the guide plate 145 can fix the control unit 141b without protruding from the bottom of the control unit 141b, it can contribute to space saving in the staff room 140.

As shown in FIG. 1, a space 146 for changing clothes is formed on the side wall opposite to the surface on which various devices 143 are arranged including the console 141 in the staff room 140. ing. A movable shield such as a curtain 147 is provided so that the space 146 for dressing and the devices 143 arranged along the wall surface can be partitioned as necessary. In the space 146, a fixed chair 146a is installed.
As described above, the console 141, the monitor 142, and the various devices 143 are arranged in a line in the staff room 140 along one side wall surface, and the medical staff looks at the screens of the monitor 142 and the various devices 143 facing the wall surface side. Since the work can be performed while the work is being performed, the space in the staff room 140 can be widely used. Therefore, the staff room 140 can also be used as the dressing room 146 as needed. At this time, the changing room 146 and the monitor 14 are
2 and the various devices 143, the diagnostic image is not likely to be seen by another subject, and the privacy of the subject can be protected. In addition, the entrance 150
The rear wall of the self-propelled vehicle is formed so as to communicate with the center of the staff room 140, and the entrance 150 is provided with a step 151 that is stored in the vehicle body when not in use.

Next, a pit as a laying means such as a cable for connecting the console 141 and the gantry 121 and the bed 122 of the X-ray CT apparatus and a power supply cable will be described. FIG. 7 is a layout diagram of pits installed below the floor of the CT room 120 and the staff room 140, and the hatched portion is the pit 160. The pit 160 is formed from the power supply room 130 to the CT room 120, under the partition wall 120a, along the partition wall 120a, and bends under the gantry 121 to set the rear wheel position of the self-propelled vehicle. The vehicle goes straight along the bed 122 so as to avoid it, and further bends to reach the installation position of the switchboard 124. Further, the CT room 12
It is formed so as to bend under the partition wall 120b between the zero and the staff room 140, bend, and reach the console 141 along the partition wall 120b on the staff room 140 side. The pit 160 is partitioned into a signal cable and a power cable, and the pedestal 121, the bed 122,
A signal cable for transmitting and receiving signals between the consoles 141 is housed on the signal cable side in the pit 160. The power cable from the power supply 131 is once passed through the power cable side in the pit 160 to the switchboard 124.
Then, power is supplied from the switchboard 124 to the gantry 121, the bed 122, the air conditioner 123, the console 141, various devices 143, and the like again through the power cable side of the pit 160. As described above, the pit is installed under the floor of the self-propelled vehicle, and the signal cable and the power supply cable are housed in the pit, and the components constituting the X-ray CT apparatus are interconnected with each other. Since it is possible to eliminate the portion protruding from the front end, it is possible to improve workability, livability, operability, serviceability, and the like. Therefore, as in the case of the conventional X-ray CT apparatus-equipped vehicle 1, the wiring pits are protrudingly mounted on the floor or the wall, thereby restricting the spatial spread and hindering the work of the medical staff, and various devices. The problem of restricting the installation of the device can be eliminated.

[0020]

As described above in detail, according to the present invention, the slide stroke of the top plate and the tilt angle of the tilt mechanism of the gantry can be set according to the space condition of the CT room. Even if an X-ray CT apparatus of a different type is installed in an existing self-propelled vehicle due to a model update of the X-ray CT apparatus, it is possible to prevent the gantry or the top plate from interfering with the CT room. In addition, since the maximum output of X-rays generated by the X-ray CT apparatus can be limited according to the capacity of the power supply device installed in the power supply room, the power supply is stopped due to insufficient capacity and the operation of the computer is stopped. There is provided a vehicle equipped with an X-ray CT apparatus which can prevent occurrence of a problem that causes an abnormality or loss of collected valuable image data.

[Brief description of the drawings]

FIG. 1 is a plan view showing an overall layout for describing an embodiment of a vehicle equipped with an X-ray CT apparatus to which the present invention is applied.

FIG. 2 is a side view of the same.

FIG. 3 is an enlarged perspective view showing a part of a gantry and a bed provided in a CT room of a vehicle equipped with an X-ray CT apparatus.

FIG. 4 is an enlarged perspective view of a console portion installed in a staff room of a vehicle equipped with an X-ray CT apparatus.

FIG. 5 is a flowchart illustrating a shooting procedure performed while determining whether a slide stroke of a top board and a setting of a tilt angle of a gantry are appropriate.

FIG. 6 is a flowchart illustrating an imaging procedure performed while determining whether setting of an X-ray exposure condition is appropriate.

FIG. 7 is a layout view of pits installed below the floor of a vehicle equipped with an X-ray CT apparatus.

FIG. 8 is a plan view for explaining a conventional vehicle equipped with an X-ray CT apparatus.

[Explanation of symbols]

 Reference Signs List 100 Car equipped with X-ray CT apparatus 110 Driver's seat 120 CT room 121 Cradle 122 Sleeper 122a Top plate 130 Power supply room 131 Power supply device 140 Staff room 141 Console 142 Monitor 160 Pit

Claims (3)

[Claims] 1. A CT room in which a gantry and a bed of an X-ray CT apparatus are installed at a substantially intermediate portion of a self-propelled vehicle having a driver's seat at the front, and the X-ray CT formed behind the CT room.
In a car equipped with an X-ray CT apparatus equipped with a console for operating a gantry and a bed and processing data and a staff room including a monitor for displaying a CT image, the bed includes the gantry side A slidable top plate and a tilt mechanism on the gantry, and a slide stroke of the top plate and a tilt angle of the tilt mechanism can be set according to a space condition of the CT room. Features A car equipped with an X-ray CT device. 2. A CT room in which a gantry and a bed of an X-ray CT apparatus are installed substantially in the middle of a self-propelled vehicle having a driver's seat at the front, and a CT room is formed between the CT room and the driver's seat. A power supply room in which a power supply device is installed, and a console for operating a gantry and a bed of the X-ray CT device formed behind the CT room and processing data, and a device including a monitor for displaying a CT image are installed. The maximum output of X-rays generated by the X-ray CT device can be limited according to the capacity of the power supply device installed in the power supply room. Features A car equipped with an X-ray CT device. 3. The vehicle equipped with an X-ray CT apparatus according to claim 2, wherein the maximum output of the X-ray is controlled by controlling a tube current and / or a tube voltage of an X-ray tube.