JP2008167976A - X-ray image diagnostic system and x-ray photographing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an X-ray image diagnostic system and X-ray image photographing method easy to write the photographing direction on image data and set up X-ray irradiation condition. <P>SOLUTION: The X-ray image diagnostic system and photographing method are provided with an X-ray generator 1 for irradiating a subject P with X rays standing up on a photographing board 5a, an X-ray detector 2 for detecting X rays from the X-ray generator 1 to produce X-ray projection data, a subject detector 51 equipped with first through fourth detectors 51a, 51b, 51c and 51d that detect the X-ray photographing direction of the subject P positioned on the photographing board 5a, and an image data production part 6 for producing image data from the X-ray projection data generated from the X-ray detector 2. The information of X-ray photographing direction of the subject P generated by the subject detector 51 is added to the image data produced by the image data producer 6. Also, both the information of the image data and its additional information of the subject's photographing direction are displayed together on a display 7. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to an X-ray image diagnostic apparatus and an X-ray imaging method, and more particularly to a standing X-ray image diagnostic apparatus and an X-ray imaging method.

An X-ray diagnostic imaging apparatus includes an X-ray generation unit that irradiates a subject with X-rays, and an X-ray detection unit that detects X-rays emitted from the X-ray generation unit and transmitted through the subject. Diagnosis is performed using image data generated from the X-ray projection data detected by the scanner. Then, an X-ray detection unit that can move up and down is set in the vicinity of an imaging region such as the head and chest of a subject in a standing position, and the X-ray generation unit is moved to a position facing the X-ray detection unit. An apparatus that performs X-ray imaging is known (for example, see Patent Document 1).

In this standing X-ray diagnostic imaging apparatus, the X-ray can be detected by the X-ray detector so that the direction (imaging direction) in which the subject is irradiated with X-rays can be seen from the image data after X-ray imaging. X-ray photography is performed by attaching a dial plate or the like made of a lead material having a photographing direction on the edge. When irradiating X-rays from the front of the subject, for example, an AP dial is attached, and when irradiating X-rays from the rear, a PA dial is attached. As a result, AP and P are displayed on the display unit together with the image data.
The letter A is displayed.

Further, the X-ray irradiation conditions are set by changing from the default values according to the physique of the subject. When the subject is obese, X-ray imaging is performed after changing the X-ray irradiation time set in advance as the default time to a time longer than the default value, and the subject is lean. In some cases, X-ray imaging is performed after changing to a time shorter than the default value.
JP 2000-201913 A

However, since the operation of attaching the dial plate indicating the imaging direction is manually performed by the operator of the X-ray image diagnostic apparatus, the AP dial plate is erroneously attached to the X-ray detection unit behind the subject. There is a risk of sticking the PA dial when irradiating X-rays. In addition, since the X-ray irradiation conditions are changed manually from the operation unit according to the physique of the subject, a place that should be set to a time shorter than the default value is set to a long time by mistake, and the subject is more than necessary. X
There is a risk of irradiation. Furthermore, since the pasting work and the change setting work are performed manually, there is a problem that the inspection takes time.

The present invention has been made to solve the above-mentioned problems, and provides an X-ray diagnostic imaging apparatus and an X-ray imaging method in which the imaging direction is displayed in the image data and the X-ray irradiation conditions can be easily set. Objective.

In order to solve the above-mentioned problem, the X-ray diagnostic imaging apparatus according to claim 1 of the present invention includes an X-ray generation unit that irradiates a subject placed in a standing position on an imaging table, X-ray detection means for detecting X-rays transmitted through the subject and generating X-ray projection data; subject detection means for detecting the imaging direction of the subject; and the X-ray detection; Image data generating means for generating image data based on the X-ray projection data generated by the means, and appending information relating to the imaging direction of the subject detected by the subject detecting means to the generated image data. It is characterized by that.

According to a fourth aspect of the present invention, there is provided an X-ray diagnostic imaging apparatus according to the present invention, comprising: X-ray generation means for irradiating a subject placed in a standing position on an imaging table; and X-rays transmitted through the subject. X-ray detection means for detecting a line and generating X-ray projection data, subject detection means arranged on the imaging table for measuring the weight of the subject, and information on the imaging part of the subject are input An input unit; a moving unit configured to move the X-ray detection unit up and down to set in the vicinity of an imaging region input by the input unit; a position of the X-ray detection unit set by the moving unit; The physique that calculates the body length of the subject from the information of the imaging part input by the input means, and creates the physique information of the subject based on the calculated body length and the weight information measured by the subject detection means Information creation means and the physique information creation X-ray irradiation condition setting means for setting X-ray irradiation conditions in accordance with the physique information created by the above, and X-rays from the X-ray generation means based on the X-ray irradiation conditions set by the X-ray irradiation condition setting means And an image data generating means for generating image data from the X-ray projection data generated by the X-ray detecting means by irradiation.

Furthermore, in the X-ray imaging method of the present invention according to claim 5, X-rays are applied to the subject placed in a standing position on the imaging table by X-ray generation means and transmitted through the subject. X-ray projection data is generated by the X-ray detection means, is arranged on the imaging table, the imaging direction of the subject is detected by the subject detection means, and the X-ray generated by the X-ray detection means is detected. Image data is generated on the basis of the projection data, and the image data generating means accompanies information relating to the imaging direction of the object detected by the object detecting means to the generated image data.

Furthermore, in the X-ray imaging method of the present invention as set forth in claim 6, information on an imaging region of a subject to be X-rayed is input by an input means, and the object placed on the imaging table in a standing position is input. X-ray detection for measuring the body weight of the specimen by the subject detection means arranged on the imaging table and detecting X-rays from the X-ray generation means for irradiating the subject with X-rays to generate X-ray projection data The means is moved up and down, set by the moving means in the vicinity of the imaging part inputted by the input means, the position of the X-ray detection means set by the moving means and the imaging part inputted by the input means The body length of the subject is calculated from the information of the subject, and information on the physique of the subject is created by the physique information creation unit based on the calculated body length and the weight information measured by the subject detection unit, and the physique information Created by creating means The X-ray irradiation condition set by the X-ray irradiation condition setting means in accordance with physical information, based on the set X-ray irradiation condition by the X-ray irradiation condition setting means and the X
Image data is generated by the image data generation means from the X-ray projection data generated by the X-ray detection means by X-ray irradiation from the line generation means.

According to the present invention, an X-ray corresponding to the physique of the subject P can be obtained by placing the subject P in a standing position on the imaging stand and setting the X-ray detection unit as the imaging region of the subject. X-ray imaging can be performed under irradiation conditions. Further, information on the photographing direction can be stored and displayed together with the image data. As a result, the inspection time can be shortened and the inspection can be performed safely.

  Examples of the present invention will be described.

  Embodiments of the X-ray image diagnostic apparatus according to the present invention will be described below with reference to FIGS.

FIG. 1 is a block diagram showing a configuration of an X-ray image diagnostic apparatus according to an embodiment of the present invention. This X-ray diagnostic imaging apparatus 10 two-dimensionally detects an X-ray generator 1 that irradiates a subject P with X-rays, and X-rays that are irradiated from the X-ray generator 1 and transmitted through the subject P. An X-ray detection unit 2 for generating X-ray projection data, a first arm 31a for supporting the X-ray generation unit 1, a second arm 32a for supporting the X-ray detection unit 2, and first and second arms 31a, Mechanism portions 3 for driving the respective 32a;
And a high voltage generation unit 4 that generates a high voltage necessary for X-ray irradiation in the X-ray generation unit 1.

Further, an imaging table 5a on which the subject P is placed in a standing position when X-ray imaging is performed, and the imaging table 5
Image data is generated and generated from the X-ray projection data generated by the X-ray detection data generated by the X-ray detection unit 2 and the X-ray detection unit 2 which detects the imaging direction of the test object P placed on a and creates physique information. An image data generation unit 6 that stores image data, a display unit 7 that displays image data generated and stored by the image data generation unit 6, subject information such as ID, name, and age of the subject P, and imaging Part,
An operation unit 8 for setting the imaging time including the examination time, the position of the first arm 31a, the position of the second arm 32a, the X-ray irradiation conditions, the setting and selection of various conditions relating to display, the input of various commands, etc. And a system control unit 9 that controls these units in a unified manner.

The X-ray generator 1 accelerates electrons emitted from a cathode (filament) with a high voltage and collides with the anode to generate X-rays, and between the X-ray tube 11 and the subject P. And an X-ray diaphragm 12 that controls the irradiation range of X-rays emitted from the X-ray tube 11 and irradiated on the subject P.

The X-ray detection unit 2 detects X-rays transmitted through the subject P, converts the detected X-rays into electric charges, and generates an electric signal proportional to the energy. The method of converting to charge includes a-
A direct conversion system that converts X-rays directly into electric charges in a conversion layer such as Se, and an indirect system that converts the light once through a scintillator layer such as cesium iodide and then converts the converted light into electric charges using a photodiode. There is. In this embodiment, any method may be adopted. here,
A direct conversion method will be described as an example.

The X-ray detection unit 2 converts the X-rays that have passed through the subject P into charges and stores them, and a projection that reads out the charges stored in the plane detectors 21 and generates X-ray projection data. And a data generation unit 22.

The flat detector 21 is configured by two-dimensionally arranging minute detection elements. Each detection element detects an X-ray and generates a charge according to an incident X-ray dose, and the photoelectric film. And a thin film transistor for reading out the charge accumulated in the charge storage capacitor at a predetermined timing.

The projection data generation unit 22 reads a charge accumulated in the flat detector 21 and converts it into a voltage, and an A / D converter that converts the output of the charge / voltage converter into a digital signal. And a parallel / serial converter for converting the X-ray projection data read in parallel from the plane detector 21 in units of lines and converted into digital data into a time-series signal.

The mechanism unit 3 moves the first arm 31a and moves the first arm moving mechanism 31 for setting the X-ray generation unit 1 in the vicinity of the imaging region of the subject P, and the second arm 32a to move the X-ray. A second arm moving mechanism 32 for setting the detection unit 2 in the vicinity of the imaging part of the subject P, and the first and second arm moving mechanisms 31 and 32 based on a control signal supplied from the system control unit 9. And a mechanism control unit 33 for controlling.

FIG. 2 is a diagram showing the moving directions of the first and second arms 31a and 32a driven by the first and second arm moving mechanisms 31 and 32, and the X-ray generator 1 and the X-ray detector 2. . The first arm moving mechanism 31 is held on a ceiling (not shown). The second arm moving mechanism 32 is held in a support column 35 installed perpendicular to the floor.

One end of the first arm 31a is movable in the arrow L1 direction which is the vertical direction, the arrow L2 direction which is the front-rear direction with respect to the support column 35, and the arrow L3 direction which is perpendicular to the L1 direction and the L2 direction. It is held by the first arm moving mechanism 31 and supports the X-ray generator 1 at the other end. The second arm 32a has one end supported by the second arm moving mechanism 32 so as to be movable in the L1 direction, and supports the X-ray detection unit 2 at the other end.

The X-ray detection unit 2 is set in the vicinity of the imaging region of the subject P placed in a standing position on the imaging table 5a arranged in the vicinity of the support column 35 by the movement of the second arm 32a in the L1 direction. The Also,
The X-ray generator 1 is set in the vicinity of the imaging region of the subject P by the movement of the first arm 31a in the L1, L2, and L3 directions.

Returning to FIG. 1, the high voltage generation unit 4 generates a high voltage for supplying a high voltage applied between the anode and the cathode in order to accelerate the thermal electrons generated from the cathode of the X-ray tube 11 of the X-ray generation unit 1. And an X-ray controller 42 for controlling the high voltage generator 41 based on a control signal supplied from the system control unit 9.

The high voltage generator 41 supplies a high voltage and a heating voltage for generating X-rays to the X-ray tube 11 based on a control signal for X-ray irradiation conditions from the X-ray controller 42. The X-ray controller 42 is an X-ray irradiation condition included in the imaging conditions supplied from the system control unit 9.
The X-ray tube 11 is set for the irradiation time or the like.

The subject information collection unit 5 includes a subject detection unit 51 that detects an imaging direction and measures a body weight when the subject P is standing, information on the weight of the subject P measured by the subject detection unit 51, and the like. And a physique information creation unit 52 that creates physique information using the. Then, the detected shooting direction information and the created physique information are output to the system control unit 9.

The image data generation unit 6 generates image data from the X-ray projection data output in line units from the X-ray detection unit 2, and information on imaging conditions and imaging directions supplied from the system control unit 9 to the generated image data Is attached. Then, the image data with information on the shooting conditions and the shooting direction is output to the display unit 7.

The display unit 7 combines the image data output from the image data generation unit 6 with the incidental information of the image data shooting direction and shooting conditions, and generates display data.
A conversion circuit that performs D / A conversion and TV format conversion on display data to generate a video signal, and a liquid crystal panel or CRT monitor that displays the video signal are provided.

The operation unit 8 is an interactive interface including an input device such as a keyboard, a trackball, a joystick, a mouse, a display panel, and various switches. The operation unit 8 sets shooting conditions, inputs various commands, and the like.

The system control unit 9 includes a CPU and a storage circuit (not shown), temporarily stores input information such as command signals and imaging conditions supplied from the operation unit 8, and then controls the entire system based on the input information. .

Further, the imaging direction information output from the subject detection unit 51 of the subject information collection unit 5 is supplied to the image data generation unit 6. Further, X-ray irradiation conditions are set based on the physique information output from the physique information creation unit 52 of the subject information collection unit 5, and information on the set X-ray irradiation conditions is set as the X-ray control unit of the high voltage generation unit 4. 42.

Next, the configuration and operation of the subject information collecting unit 5 will be described in detail with reference to FIGS. FIG. 3 is a view of the imaging table 5a as viewed from above, and shows the configuration of the subject detection unit 51 of the subject information collection unit 5. 4 and 5 are diagrams illustrating examples of calculating the body length of the subject P. FIG.

In FIG. 3, the subject detection unit 51 detects the photographing direction of the subject P and measures the body weight by pressing the foot of the subject P placed in a standing position on the photographing stand 5a, for example, a pressure sensor. The first to fourth detectors 51a, 51b, 51c, and 51d having the above are provided, and the detectors are arranged on the imaging table 5a so as to be separated from each other. And each 1st thru | or 4th detector 51a, 51b,
Information on the photographing direction corresponding to each detector is created from the signals detected by 51c and 51d and output to the system control unit 9. Further, the information on the weight measured by each detector is output to the physique information creation unit 52.

The 1st detector 51a is arrange | positioned at the X-ray detection part 2 side of the imaging stand 5a arrange | positioned freely. Then, when the X-ray detection unit 2 is in the imaging direction (AP direction) behind the subject P, the imaging table 5a is arranged so that the position pressed by the subject P becomes the first detector 51a. The

The second detector 51b is disposed on the X-ray generation unit 1 side so as to face the first detector 51a. Then, when the X-ray detector 2 is in the imaging direction (PA direction) in front of the subject P, the imaging table 5a is arranged so that the position pressed by the subject P becomes the second detector 51b. The

The third detector 51c is disposed between the first detector 51a and the second detector 51b. Then, when the X-ray detection unit 2 is in the imaging direction (RL direction) on the left side of the subject P, the imaging table 5a is arranged so that the position pressed by the subject P becomes the third detector 51c. Is done.

The fourth detector 51d is disposed between the first detector 51a and the second detector 51b so as to face the third detector 51c. Then, an imaging direction in which the X-ray detector 2 is located on the right side of the subject P (L
In the R direction), the imaging stand 5a is arranged so that the position pressed by the subject P becomes the fourth detector 51d.

A number of pressure sensors are arranged in a two-dimensional matrix on the imaging table 5a, and the imaging direction is detected by obtaining the shape of the bottom of the foot of the subject P from the detection signals output from the pressure sensors. Also good. Further, the weight of the subject P may be measured from the detection signal output from each pressure sensor.

The physique information creation unit 52 includes the second arm 3 disposed in the second arm moving mechanism 32 of the mechanism unit 3.
2a has a position sensor such as an encoder for detecting the position in the L1 direction. When the X-ray detection unit 2 is set near the imaging region of the subject P, the position information of the second arm 32 a output from the position sensor of the second arm moving mechanism 32 and the system control unit 9 are supplied. The body length of the subject P is calculated based on the information on the imaging region.

4 and 5 are diagrams showing an example of calculating the body length of the subject P. FIG. By setting the X-ray detection unit 2 in the vicinity of the chest, which is an imaging region of the subject P, as shown in FIG.
Based on the position information of the second arm 32 a output from the position sensor of the arm moving mechanism 32, the distance H <b> 1 between the floor and the center of the flat detector 21 in the X-ray detection unit 2 is obtained.

Here, the upper end of the flat detector 21 when the imaging region is the chest is located, for example, near the neck of the subject P, and the subject P is based on the head-and-body information corresponding to each age set in advance. For example, if there are six heads and bodies, the body length Hp [= {(H1 + H2−) of the subject P using the distance H2 between the center and the upper end of the flat detector 21 and the height H3 of the imaging table 5a set in advance. H3) × 6/5}]
Can be calculated.

Further, if the imaging region of the subject P is the head, for example, the center of the flat detector 21 is set to a height near the center of the head of the subject P, as shown in FIG. Based on the position information of the second arm 32a output from the position sensor of the two-arm moving mechanism 32, the distance H4 between the floor and the center of the flat detector 21 is obtained.

Here, the distance H5 between the center of the head of the subject P and the top of the head is determined from the information on the six heads and the subject P.
The distance H6 between the upper surface of the imaging table 5a and the center of the head of the subject P (= H4−).
By multiplying H3) by 12/11, the body length Hp of the subject P [= {(H4-H3) × 1
2/11}] can be calculated.

Next, the physique information creation unit 52 creates physique information based on the imaging conditions supplied from the system control unit 9, the calculated body length, and the weight information measured by the subject detection unit 51. Here, for example, three types (obesity type, middle meat type, thinness) are obtained from statistical data obtained by statistically processing the body length and weight of a large number of subjects in advance for the physique of a subject P who is older than a predetermined age. Type) and classification data that can be classified into four types of subjects P whose age is less than a predetermined age.

And it classify | categorizes into predetermined age or older and less than predetermined age based on the age information contained in imaging | photography conditions. Next, in the case of a predetermined age or older, the body length and weight information is classified into obesity type, middle meat type, and lean type, and the classified physique information is output to the system control unit 9.

The system control unit 9 sets X-ray irradiation conditions based on the physique information output from the physique information creation unit 52. Then, when the age included in the imaging conditions is a predetermined age or older and is a middle type, for example, the X-ray irradiation time of the X-ray irradiation conditions is set to the default Ts. In the case of obesity type, the X-ray irradiation time is set to a time T1 longer than the default. Further, in the case of the lean type, the X-ray irradiation time is set to a time T2 shorter than the default. Furthermore, when the age is less than a predetermined age, the X-ray irradiation time is set to a time T3 that is shorter than the time T2.

Hereinafter, an example of the operation of the X-ray image diagnostic apparatus 10 will be described with reference to FIGS. 1 to 7.
FIG. 6 is a flowchart showing the operation of the X-ray image diagnostic apparatus 10. When an operation for setting imaging conditions for X-ray imaging of, for example, the chest of the subject P from the AP direction is performed, the X-ray diagnostic imaging apparatus 1
0 starts the operation (step S1).

The imaging table 5 a is arranged at a position where the first detector 51 a of the subject detection unit 51 in the subject information collection unit 5 is pressed by the foot of the subject P. Then, the subject P stands on the imaging table 5a and A
When placed in the P direction, the subject detection unit 51 creates AP direction information from the signal detected by the first detector 51a, and outputs the created AP direction information to the system control unit 9 (step S).
2). Moreover, the information on the weight of the subject P measured by the first detector 51a is output to the physique information creation unit 52 (step S3).

When the setting operation of the X-ray detection unit 2 is performed from the operation unit 8 after the subject P is placed on the imaging table 5a, the system control unit 9 connects the second arm to the mechanism control unit 33 of the mechanism unit 3. The movement of 32a is instructed. The second arm moving mechanism 32 receives the second arm 32 in accordance with a control signal from the mechanism control unit 33.
a is moved from the home position in the L1 direction, and the X-ray detector 2 is set in the vicinity of the imaging region (step S4).

The physique information creation unit 52 is based on the position information of the second arm 32a output from the position sensor of the second arm moving mechanism 32 and the information on the imaging conditions supplied from the system control unit 9.
The body length of the subject P is calculated (step S5).

Next, physique information of the subject P is created from the calculated body length and the weight information output from the subject detection unit 51, and the created physique information is output to the system control unit 9 (step S6).

The system control unit 9 stores the AP direction information output from the subject detection unit 51 in an internal storage circuit. Further, based on the physique information output from the physique information creation unit 52, the X-ray irradiation conditions included in the imaging conditions are changed and set to conditions according to the physique information (step S7).

When the setting operation of the X-ray generation unit 1 is performed from the operation unit 8, the system control unit 9 instructs the mechanism control unit 33 to move the first arm 31 a. The first arm moving mechanism 31 moves the first arm 31a from the home position in the L1, L2, and L3 directions by the control signal of the mechanism control unit 33, and sets the X-ray generation unit 1 in the vicinity of the imaging region. To do.

When an X imaging operation is performed from the operation unit 8, the system control unit 9 supplies information on imaging conditions to the X-ray controller 42 and the image data generation unit 6 of the high voltage generation unit 4. In addition, AP direction information, which is the imaging direction of the subject P, is supplied to the image data generation unit 6.

The high voltage generator 41 of the high voltage generator 4 supplies the high voltage for imaging to the X-ray tube 11 of the X-ray generator 1 in accordance with a control signal from the X-ray controller 42 based on the imaging conditions from the system controller 9. To supply. The X-ray tube 11 irradiates the subject P with X-rays corresponding to the high voltage supplied from the high voltage generator 41. The X-ray detection unit 2 detects X-rays transmitted through the subject P, generates X-ray projection data,
The generated X-ray projection data is output to the image data generation unit 6.

The image data generation unit 6 generates image data from the X-ray projection data output from the X-ray detection unit 2, and attaches the imaging condition and AP direction information supplied from the system control unit 9 to the generated image data. And is displayed on the display unit 7 (step S8).

FIG. 7 is a diagram showing an example of image data displayed on the screen of the display unit 7 and accompanying information of the image data. On this screen 71, chest image data 72 of the subject P, “AP” which is an imaging direction, and “130 kV” which is a tube voltage of an X-ray irradiation condition included in the imaging conditions,
The tube current “100 mA” and the X-ray irradiation time “0.57 s” are displayed. In this way, the imaging direction and X-ray irradiation conditions of the subject P can be displayed on the display unit 7 together with the image data.

Next, when image data to be used for diagnosis or treatment of the subject P is obtained, when the operation end operation is performed from the operation unit 8, the system control unit 9 includes the X-ray generation unit 1 and the X-ray detection unit 2. , Mechanism part 3
The operation is instructed to each unit of the high voltage generation unit 4, the subject information collection unit 5, and the image data generation unit 6. When the operation of each unit stops, the X-ray diagnostic imaging apparatus 10 ends the operation (step S9 in FIG. 6).

After the inspection is completed, the image data 72 stored in the image data generation unit 6, “AP”, “130 kV
”,“ 100 mA ”, and“ 0.57 s ”are displayed for diagnosis or treatment by a doctor. In this way, information on the shooting direction and shooting conditions together with the stored image data 72 is displayed on the display unit 7.
Can be displayed.

According to the embodiment of the present invention described above, the subject P is set by setting the X-ray detection unit 2 in the vicinity of the imaging part of the subject P placed in the imaging direction while standing on the imaging table 5a. Measure the weight of
The physique information of the subject P can be created based on the measured weight information and the position information of the X-ray detection unit 2. In addition, information on the imaging direction of the subject P can be created.

Then, based on the created physique information, X-ray irradiation conditions corresponding to the physique of the subject P can be set, and X-ray imaging can be performed under the set X-ray irradiation conditions. Further, information on the photographing direction can be stored and displayed together with the image data. As a result, the inspection time can be shortened and the inspection can be performed safely.

1 is a block diagram showing a configuration of an X-ray image diagnostic apparatus according to an embodiment of the present invention. The figure which shows operation | movement of the 1st and 2nd arm which concerns on the Example of this invention. The figure which looked at the imaging stand which concerns on the Example of this invention from the top. The figure which shows the example which calculates the body length of the subject which concerns on the Example of this invention. The figure which shows the example which calculates the body length of the subject which concerns on the Example of this invention. The flowchart which shows operation | movement of the X-ray image diagnostic apparatus which concerns on the Example of this invention. The figure which shows an example of the image data displayed on the screen of the display part which concerns on the Example of this invention, and incidental information.

Explanation of symbols

P Subject 1 X-ray generation unit 2 X-ray detection unit 3 Mechanism unit 4 High voltage generation unit 5 Subject information collection unit 5a Imaging table 6 Image data generation unit 7 Display unit 8 Operation unit 9 System control unit 10 X-ray image diagnosis Device 11 X-ray tube 12 X-ray restrictor 21 Planar detector 22 Projection data generating unit 31 First arm moving mechanism 31a First arm 32 Second arm moving mechanism 32a Second arm 33 Mechanism control unit 41 High voltage generator 42 X Line controller 51 Object detection unit 52 physique information creation unit

Claims (6)

X-ray generation means for irradiating a subject placed in a standing position on an imaging table with X-rays;
X-ray detection means for detecting X-rays transmitted through the subject and generating X-ray projection data;
An object detection means disposed on the imaging table for detecting the imaging direction of the object;
Image data generation that generates image data based on the X-ray projection data generated by the X-ray detection unit, and adds information on the imaging direction of the subject detected by the subject detection unit to the generated image data And an X-ray diagnostic imaging apparatus. 2. The X-ray diagnostic imaging apparatus according to claim 1, further comprising display means for displaying information on an imaging direction attached to the image data together with the image data from the image data generating means. The analyte detection means includes
First detection means for detecting the subject when the X-ray detection means is located behind the subject P in the imaging direction;
A second detection means for detecting the subject when the X-ray detection means is in an imaging direction in front of the subject P;
Third detection means for detecting the subject when the X-ray detection means is in the imaging direction located on the left side of the subject P;
2. The X-ray according to claim 1, further comprising: a fourth detection unit configured to detect the subject when the X-ray detection unit is positioned in the imaging direction on the right side of the subject P. 3. Diagnostic imaging device. X-ray generation means for irradiating a subject placed in a standing position on an imaging table with X-rays;
X-ray detection means for detecting X-rays transmitted through the subject and generating X-ray projection data;
A subject detection means disposed on the imaging table for measuring the weight of the subject;
Input means for inputting information of the imaging region of the subject;
Moving means for moving the X-ray detection means up and down and setting it in the vicinity of the imaging region inputted by the input means;
The body length of the subject is calculated from the position of the X-ray detection means set by the moving means and the information of the imaging part input by the input means, and the calculated body length and the weight measured by the subject detection means Physique information creating means for creating physique information of the subject based on the information of
X-ray irradiation condition setting means for setting X-ray irradiation conditions according to the physique information created by the physique information creating means;
Image data for generating image data from the X-ray projection data generated by the X-ray detection means by X-ray irradiation from the X-ray generation means based on the X-ray irradiation conditions set by the X-ray irradiation condition setting means An X-ray diagnostic imaging apparatus comprising: a generation unit. X-rays are irradiated to the subject placed in a standing position on the imaging table by X-ray generation means,
Detecting X-rays transmitted through the subject and generating X-ray projection data by X-ray detection means;
It is arranged on the imaging table, the imaging direction of the subject is detected by the subject detection means,
Image data is generated based on the X-ray projection data generated by the X-ray detection means, and information regarding the imaging direction of the subject detected by the subject detection means is added to the generated image data by the image data generation means. An X-ray imaging method characterized by being attached. Input the information of the imaging part of the subject to be X-rayed by the input means,
Measure the weight of the subject placed in a standing position on the imaging table by the object detection means arranged on the imaging table,
The X-ray detection means for generating X-ray projection data by detecting X-rays from the X-ray generation means for irradiating the subject with X-rays is moved up and down, and in the vicinity of the imaging region input by the input means Set by moving means,
The body length of the subject is calculated from the position of the X-ray detection means set by the moving means and the information of the imaging part input by the input means, and the calculated body length and the weight measured by the subject detection means Based on the information of the subject, the information on the physique of the subject is created by the physique information creating means,
According to the physique information created by the physique information creation means, X-ray irradiation conditions are set by the X-ray irradiation condition setting means,
Image data generation means from the X-ray projection data generated by the X-ray detection means by X-ray irradiation from the X-ray generation means based on the X-ray irradiation conditions set by the X-ray irradiation condition setting means An X-ray diagnostic imaging apparatus characterized by being generated by:

Images