X-ray imaging device

Abstract

This X-ray imaging device (100) comprises a first arm (1), a second arm (2), an imaging angle setting unit (4) for setting the respective target imaging angles of a first X-ray source (1a) and a second X-ray source (2a), and a display unit (3). The display unit (3) displays a disposition screen (8) indicating the disposition corresponding to the positions of both the first X-ray source (1a) and the second X-ray source (2a) at the target imaging angles with respect to the position of an actual subject (101). The imaging angle setting unit (4) and the display unit (3) are provided in the same disposition region (103) of an X-ray imaging device body (100a).

Description

X-ray equipment

[0001] The present invention relates to an X-ray imaging apparatus, and more particularly to an X-ray imaging apparatus having two arms.

[0002] 2. Description of the Related Art Conventionally, an X-ray imaging apparatus having two arms has been known, and such an X-ray imaging apparatus is disclosed in, for example, Japanese Patent No. 5510540.

[0003] The X-ray imaging apparatus described in the above-mentioned Japanese Patent No. 5510540 includes two arms: a C-arm that supports an X-ray source and an X-ray detector facing each other vertically, and an Ω-arm that supports an X-ray source and an X-ray detector facing each other horizontally. The X-ray imaging apparatus also includes a control panel that accepts operations for moving the two arms, and a display panel that displays a target imaging angle that indicates a target imaging position to which the two arms are to be moved, which is set via the control panel. The control panel is provided on a bed for a subject.

[0004] Patent No. 5510540

[0005] Although the position of the display panel is not specified in Japanese Patent No. 5510540, the display panel is generally located at a position away from the control panel above the subject. When this configuration is applied to Japanese Patent No. 5510540, the operator must move their eyes to the display panel while checking the control panel at hand when moving the two arms, which is desirable. Furthermore, although not specified in Japanese Patent No. 5510540, the display panel generally displays the target imaging angle only numerically. When this configuration is applied to Japanese Patent No. 5510540, the operator must understand the position of the two arms (X-ray sources) relative to the subject from the numerical value indicating the target imaging angle. In this case, the X-ray imaging device of Japanese Patent No. 5510540 does not allow intuitive operation for moving the X-ray source, which is desirable.

[0006] The present invention has been made to solve the above-mentioned problems, and one object of the present invention is to provide an X-ray imaging device that allows an operation to move an X-ray source to be performed without moving the line of sight, and that allows an operation to move an X-ray source to be performed intuitively.

[0007] In order to achieve the above object, an X-ray imaging apparatus according to one aspect of the present invention includes: a first arm that supports a first X-ray source and a first X-ray detector so that they face each other; a second arm that supports a second X-ray source and a second X-ray detector so that they face each other; an imaging angle setting unit that sets a target imaging angle for each of the first X-ray source and the second X-ray source; and a display unit that displays the content set by the imaging angle setting unit, wherein the display unit is configured to display an arrangement screen that shows an arrangement corresponding to the positions of both the first X-ray source and the second X-ray source at the target imaging angle relative to the actual position of a subject, and the imaging angle setting unit and the display unit are provided in the same arrangement region of a main body of the X-ray imaging apparatus.

[0008] In the X-ray imaging device according to the above aspect, the display unit is configured to display an arrangement screen showing an arrangement corresponding to the positions of both the first X-ray source and the second X-ray source at a target imaging angle relative to the actual position of the subject. This allows the positions of both the first X-ray source and the second X-ray source relative to the subject to be understood through an image that can be visually confirmed like a map on the arrangement screen. Furthermore, the imaging angle setting unit and the display unit are provided in the same arrangement area of ​​the X-ray imaging device main body. This allows both the imaging angle setting unit and the display unit to be confirmed without moving the line of sight. As a result, operations to move the first X-ray source and the second X-ray source can be performed without moving the line of sight, and operations to move the first X-ray source and the second X-ray source can be performed intuitively.

[0009] 1 is a perspective view for explaining the configuration of an X-ray imaging apparatus according to an embodiment; FIG. 2 is a side view for explaining the configuration of an X-ray imaging apparatus according to an embodiment; FIG. 3 is a front view for explaining the configuration of an X-ray imaging apparatus according to an embodiment; FIG. 4 is a block diagram for explaining the configuration of an X-ray imaging apparatus according to an embodiment; FIG. 5 is a diagram showing a pre-arrangement setting screen of a touch panel of an X-ray imaging apparatus according to an embodiment; FIG. 6 is a diagram showing X-ray source arrangement information (information indicating the relationship between the target imaging angle of a first X-ray source and the target imaging angle of a second X-ray source) stored in a storage unit of an X-ray imaging apparatus according to an embodiment; FIG. 7 is a diagram showing an arrangement screen of a touch panel of an X-ray imaging apparatus according to an embodiment, showing a state before an imaging angle setting switch is operated; FIG. 8 is a diagram showing an arrangement screen of a touch panel of an X-ray imaging apparatus according to an embodiment, showing a state after an imaging angle setting switch is operated; and FIG. 9 is a control processing flow for moving an X-ray source executed by a control unit (display control unit) of an X-ray imaging apparatus according to an embodiment.

[0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings.

[0011] (Overall Configuration of X-Ray Imaging Apparatus) An X-ray imaging apparatus 100 according to an embodiment of the present invention will be described with reference to FIGS.

[0012] As shown in FIG. 1 , an X-ray imaging apparatus 100 is used for X-ray imaging to check, for example, the morphology of blood vessels and blood flow within the body of a subject 101. The X-ray imaging apparatus 100 of this embodiment is a so-called biplane X-ray imaging apparatus equipped with two arms, a first arm 1 and a second arm 2. The biplane X-ray imaging apparatus 100 is capable of simultaneously emitting X-rays from two directions to generate two X-ray images. The first arm 1 is configured as a so-called frontal arm that is primarily used to image the subject 101 from the body axis direction and the vertical direction. The second arm 2 is configured as a so-called lateral arm that is primarily used to image the subject 101 from the lateral side.

[0013] Here, in each figure, the up-down direction is indicated by the Z direction, the body axis direction (the direction in which the body axis extends) of the supine subject 101 is indicated by the X direction, and the left-right direction of the subject 101, which is the horizontal direction perpendicular to the X direction, is indicated by the Y direction.

[0014] As shown in FIGS. 1 to 4, the X-ray imaging device 100 includes a first X-ray source 1a, a first X-ray detector 1b, a first arm 1 that supports the first X-ray source 1a and the first X-ray detector 1b so that they face each other, a second X-ray source 2a, a second X-ray detector 2b, a second arm 2 that supports the second X-ray source 2a and the second X-ray detector 2b so that they face each other, a CPU 200, a display unit 3, an imaging angle setting unit 4, a memory unit 5a, and a control unit 5.

[0015] The display unit 3, the imaging angle setting unit 4, the storage unit 5a, and the control unit 5 are integrally configured as a touch panel 300. The touch panel 300 is detachably installed on the side of the bed 102 of the subject 101. That is, the display unit 3 and the imaging angle setting unit 4 are provided in the same arrangement area 103 of the X-ray imaging apparatus main body 100a. Therefore, the operator can visually check the display unit 3 while visually checking and operating the imaging angle setting unit 4. Therefore, the operator does not need to move his or her line of sight when visually checking both the imaging angle setting unit 4 and the display unit 3.

[0016] (Configuration of First X-ray Source, First X-ray Detector, and First Arm) The first X-ray source 1a is an X-ray irradiation unit configured with an X-ray tube that irradiates X-rays when a voltage is applied. The first X-ray source 1a irradiates X-rays onto a subject 101 lying supine on a bed 102. The first X-ray source 1a irradiates X-rays toward the subject 101 mainly from the body axis direction and the vertical direction of the subject 101.

[0017] The first X-ray detector 1b detects X-rays transmitted through the subject 101. The first X-ray detector 1b then outputs a detection signal based on the detected X-rays. As an example, the first X-ray detector 1b is configured as an FPD (Flat Panel Detector). Also, as an example, the first X-ray detector 1b is configured as a wireless X-ray detector and outputs a detection signal as a wireless signal via a wireless LAN or the like to an X-ray image generation unit (not shown). The X-ray image generation unit generates an X-ray image based on the detection signal. The generated X-ray image is output to a display device (not shown) so that the operator can check it.

[0018] The first arm 1, which is configured as a so-called frontal arm, is provided with a base 10a disposed on the floor surface and a support 10b attached to the base 10a. The first arm 1 is supported by the support 10b and is installed on the floor surface via the base 10a. The support 10b is attached to the base 10a so as to be rotatable around a vertical axis.

[0019] The first arm 1 includes a C-arm portion 11 that is arc-shaped (C-shaped) when viewed from the left-right direction (Y direction), and an arm holder portion 12 that supports the C-arm portion 11 movably along the arc direction. The C-arm portion 11 supports a first X-ray source 1a at one end and a first X-ray detector 1b at the other end, thereby opposing the first X-ray source 1a and the first X-ray detector 1b so as to sandwich the subject 101 therebetween.

[0020] The first arm 1 is provided with a rotation mechanism 13 for rotating the C-arm 11 along an arc around a left-right axis (an axis perpendicular to the body axis in a horizontal plane) relative to the arm holder 12, a drive motor 14a, and a rotary encoder 14b for detecting the rotation angle of the drive motor 14a. The detection value of the rotary encoder 14b is output to the CPU 200.

[0021] The rotation mechanism 13 is housed in the arm holder portion 12. The rotation mechanism 13 includes a belt 13a attached to the C-arm portion 11, a drive roller 13b around which the belt 13a is wound and to which torque is applied by a drive motor 14a, and a guide roller 13c that guides the belt 13a to the drive roller 13b.

[0022] The first arm 1 is also provided with a drive motor 15a that rotates the arm holder 12 around the body axis relative to the support column 10b, and a rotary encoder 15b that detects the rotation angle of the drive motor 15a. The drive motor 15a rotates the arm holder 12 via a pinion gear 16a and a gear 16b that rotates together with the pinion gear 16a. The detection value of the rotary encoder 15b is output to the CPU 200.

[0023] The first arm 1 is colored in a first appearance color 6a (the color of the portion indicated by wide hatching in FIG. 1 ). As a specific example, the inner circumferential surface of the first arm 1 is colored in blue as the first appearance color 6a. The first X-ray source 1a and the first X-ray detector 1b are also colored in blue as the first appearance color 6a, the same as the first arm 1. Note that not only in FIG. 1 but also in other figures, the color of the portion indicated by wide hatching similar to that in FIG. 1 means the same color as the first appearance color 6a.

[0024] (Configuration of Second X-ray Source, Second X-ray Detector, and Second Arm) The second X-ray source 2 a and the second X-ray detector 2 b have the same configuration as the first X-ray source 1 a and the first X-ray detector 1 b described above, and therefore their description will be omitted. Note that the second X-ray source 2 a is mainly disposed to the left of the subject 101 lying supine.

[0025] The second arm 2, which is configured as a so-called lateral arm, is provided with a base 20a disposed on the ceiling surface. The second arm 2 is supported by the base 20a. The base 20a is supported by guide rails 20b extending in the body axis direction and the left-right direction, and is configured to be movable horizontally together with the second arm 2.

[0026] The second arm 2 includes a C-arm portion 21 that is arc-shaped (C-shaped) when viewed from the body axis direction, and an arm holder portion 22 that supports the C-arm portion 21 movably along the arc direction. The C-arm portion 21 supports the second X-ray source 2a at one end and the second X-ray detector 2b at the other end, so that the second X-ray source 2a and the second X-ray detector 2b face each other so as to sandwich the subject 101 therebetween.

[0027] The second arm 2 is provided with a rotation mechanism 23 and a drive motor 24 a that rotate the C-arm 21 along an arc around the body axis relative to the arm holder 22, and a rotary encoder 24 b that detects the rotation angle of the drive motor 24 a. The detection value of the rotary encoder 24 b is output to the CPU 200.

[0028] The rotation mechanism 23 is housed in the arm holder portion 22. The rotation mechanism 23 includes a belt 23a attached to the C-arm portion 21, a drive roller 23b around which the belt 23a is wound and to which torque is applied by a drive motor 24a, and a guide roller 23c that guides the belt 23a to the drive roller 23b.

[0029] The second arm 2 is provided with a rotation mechanism (not shown) that rotates the arm holder 22 about a vertical axis relative to the base 20a, a drive motor 25a, and a rotary encoder 25b that detects the rotation angle of the drive motor 25a. The detection value of the rotary encoder 25b is output to the CPU 200.

[0030] The second arm 2 is colored in a second appearance color 6b (the color of the portion indicated by narrow hatching in FIG. 1 ) that is different from the first appearance color 6a. As a specific example, the inner circumferential surface of the second arm 2 is colored in yellow as the second appearance color 6b. The second X-ray source 2a and the second X-ray detector 2b are also colored in yellow as the second appearance color 6b, the same as the second arm 2. Note that not only in FIG. 1 but also in other figures, the color of the portion indicated by narrow hatching similar to that in FIG. 1 means the same color as the second appearance color 6b.

[0031] (Configuration of CPU) The CPU 200 is configured to control the driving of the drive motors 14a, 15a, etc. while acquiring detection values ​​of the rotary encoders 14b, 15b, etc. based on a target imaging angle signal output from the touch panel 300 (controller 5), thereby controlling the driving of the drive motors 14a, 15a, etc., to drive the first arm 1 so that the first X-ray source 1a is positioned at the target imaging angle. The CPU 200 is also configured to control the driving of the drive motors 24a, 25a, etc. while acquiring detection values ​​of the rotary encoders 24b, 25b, etc. based on a target imaging angle signal output from the touch panel 300 (controller 5), thereby controlling the driving of the second arm 2 so that the second X-ray source 2a is positioned at the target imaging angle.

[0032] (Configuration of Display Unit and Imaging Angle Setting Unit) The display unit 3 is configured with a touch-operable display. As an example, the display unit 3 is a liquid crystal display. The display unit 3 is configured to display the contents set by the imaging angle setting unit 4. The imaging angle setting unit 4 is an operation unit for setting the target imaging angles of the first X-ray source 1a and the second X-ray source 2a. Specifically, the imaging angle setting unit 4 is various operation switches on the display unit 3 (touch panel 300) that are used to set the target imaging angles of the first X-ray source 1a and the second X-ray source 2a.

[0033] The display unit 3 is configured to display a screen for receiving input operations by an operator to the X-ray imaging apparatus 100. In detail, the display unit 3 is configured to be able to display two images: a pre-arrangement setting screen (direct memory setting screen) 7 and an arrangement screen 8 based on information set on the pre-arrangement setting screen 7. The arrangement screen 8 is an operation setting screen used to arrange the first X-ray source 1a and the second X-ray source 2a at predetermined positions during actual imaging. The pre-arrangement setting screen 7 is an operation setting screen (a screen for direct memory) for storing information required for displaying the arrangement screen 8 on the display unit 3 in advance in the storage unit 5a.

[0034] (Regarding Pre-arrangement Setting Screen) The pre-arrangement setting screen 7 is a screen for setting the relationship between the arrangements of the first X-ray source 1 a and the second X-ray source 2 a and setting the target imaging angles of the first X-ray source 1 a and the second X-ray source 2 a. X-ray source arrangement information that associates the arrangements of the first X-ray source 1 a and the second X-ray source 2 a with each other is stored in the storage unit 5 a.

[0035] As an example, the contents displayed on the pre-arrangement setting screen 7 include, at the top of the screen, current imaging angle information, such as the current imaging angles of the first X-ray source 1a and the second X-ray source 2a, and the positions of the first X-ray source 1a and the second X-ray source 2a relative to the subject 101 in the current planar view.

[0036] 5, in the 3×3 grid of current imaging angle information displayed on the pre-arrangement setting screen 7, the bottom left grid is displayed in blue, the same as the first appearance color 6a, and therefore it can be seen that the first X-ray source 1a is disposed on the right side, near the head, of the subject 101. In addition, the top right grid is displayed in yellow, the same as the second appearance color 6b, and therefore it can be seen that the second X-ray source 2a is disposed on the left side, near the lower limbs, of the subject 101.

[0037] The contents displayed on the pre-arrangement setting screen 7 include 3×3 (total of nine) imaging angle setting switches 70 displayed at the bottom of the screen as setting information for the target imaging angle. The 3×3 imaging angle setting switches 70 indicate the arrangement of the first X-ray source 1a and the second X-ray source 2a with respect to the subject 101 in planar view, similar to the 3×3 grid of the current imaging angle information. The highlighted imaging angle setting switch 70 at the bottom left of the screen (to the right and head side of the subject 101) among the nine switches is the switch selected by the user as the main X-ray source. Since the first X-ray source 1a is currently arranged in the grid at the bottom left of the screen (to the right and head side of the subject 101), the display in FIG. 5 is a display for setting the target imaging angle for the first X-ray source 1a.

[0038] In this state, the operator can set and register up to three combinations of target imaging angles for the first X-ray source 1a and the second X-ray source 2a. Note that, since three "●" marks are displayed within the frame of the imaging angle setting switch 70 at the bottom left of the screen, it can be understood that three combinations of target imaging angles for the first X-ray source 1a and the second X-ray source 2a have currently been set and registered as registered information.

[0039] A combination 71 of three target imaging angles that have been set and registered as registered information is displayed to the right of the 3x3 imaging angle setting switch 70. In the state of Fig. 5, the third combination of target imaging angles of the first X-ray source 1a and the second X-ray source 2a is highlighted, so that the target imaging angles of the first X-ray source 1a (frontal arm) as the main X-ray source are set to RAO 30 degrees and CRAN 30 degrees, and the target imaging angles of the second X-ray source 2a (frontal arm) as the sub X-ray source are set to LAO 45 degrees and CAUD 30 degrees. In this state, the settings are confirmed by pressing the OK switch at the bottom right of the screen.

[0040] The above RAO means rightward tilt. The above LAO means leftward tilt. The above CRAN is an abbreviation for CRANIAL, which means head-side tilt. The above CAUD is an abbreviation for CAUDAL, which means lower limb-side tilt.

[0041] Since the second X-ray source 2a is currently positioned in the square at the top right of the screen (on the left side and lower limb side of the subject 101), it is possible to switch to a setting in which the second X-ray source 2a is the main X-ray source and the first X-ray source 1a is the sub X-ray source by pressing the switch at the top right of the screen of the 3×3 imaging angle setting switch 70. In this case, the switch at the top right of the screen of the 3×3 imaging angle setting switch 70 is highlighted instead of the switch at the bottom left of the screen.

[0042] The "main X-ray source" is an X-ray source that is moved to the position of the X-ray source positioning switch (memory switch) 80 (80a to 80i) (see FIGS. 7 and 8) selected (pressed) by the user on the positioning screen 8 during actual imaging. The "sub X-ray source" is an X-ray source whose position is automatically selected when the position of the main X-ray source is selected by the user. Therefore, the position of the sub X-ray source needs to be set and registered in advance in association with the position of the main X-ray source on the pre-positioning setting screen 7. The "main X-ray source" and the "sub X-ray source" may be either the first X-ray source 1a or the second X-ray source 2a. The X-ray source positioning switch 80 is an example of an "X-ray source positioning section" in the claims.

[0043] The pre-arrangement setting is completed by setting such a combination of the target imaging angles of the first X-ray source 1a and the second X-ray source 2a for each of the nine imaging angle setting switches 70. Note that the pre-arrangement setting is not required for imaging angle setting switches 70 that are not used during imaging.

[0044] As shown in FIG. 6, a specific example of X-ray source arrangement information stored in the storage unit 5a as a result of pre-arrangement setting will be described.

[0045] First setting information is stored in the storage unit 5a, which indicates that when the first X-ray source 1a (main X-ray source) is placed at a target imaging angle of RAO 30 degrees and CRAN 30 degrees (to the right side and head side of the subject 101), the second X-ray source 2a (sub X-ray source) is placed at a target imaging angle of LAO 45 degrees and CAUD 30 degrees (to the left side and lower limb side of the subject 101). To execute this stored first setting information, the operator selects the X-ray source placement switch 80a (a switch at a position corresponding to the placement of the first X-ray source 1a, which is the main X-ray source) on the placement screen 8 during actual imaging.

[0046] Further, second setting information is stored in the storage unit 5a, which indicates that when the first X-ray source 1a is placed at a target imaging angle of RAO 30 degrees and CRAN / CAUD 0 degrees (to the right of the subject 101), the second X-ray source 2a is placed at a target imaging angle of LAO 45 degrees and CRAN / CAUD 0 degrees (to the left of the subject 101). In order to execute this stored second setting information, the operator selects the X-ray source placement switch 80b (a switch at a position corresponding to the placement of the first X-ray source 1a, which is the main X-ray source) on the placement screen 8 during actual imaging.

[0047] Furthermore, third setting information is stored in the storage unit 5a, which indicates that when the first X-ray source 1a is placed at a target imaging angle of RAO 30 degrees and CAUD 30 degrees (on the right side and toward the lower limbs of the subject 101), the second X-ray source 2a is placed at a target imaging angle of LAO 40 degrees and CRAN 20 degrees (on the left side and toward the head of the subject 101). In order to execute this stored third setting information, the operator selects the X-ray source placement switch 80c (a switch at a position corresponding to the placement of the first X-ray source 1a, which is the main X-ray source) on the placement screen 8 during actual imaging.

[0048] Furthermore, fourth setting information is stored in the storage unit 5a, which indicates that when the first X-ray source 1a is placed at a target imaging angle of LAO / RAO 0 degrees and CRAN 30 degrees (toward the head of the subject 101), the second X-ray source 2a is placed at a target imaging angle of LAO 90 degrees and CRAN / CAUD 0 degrees (toward the left side of the subject 101). In order to execute this stored fourth setting information, the operator selects the X-ray source placement switch 80d (a switch at a position corresponding to the placement of the first X-ray source 1a, which is the main X-ray source) on the placement screen 8 for actual imaging.

[0049] Furthermore, fifth setting information is stored in the storage unit 5a, which indicates that when the first X-ray source 1a is placed at a target imaging angle of LAO / RAO 0 degrees and CRAN / CAUD 0 degrees (on the front or back side of the subject 101), the second X-ray source 2a is placed at a target imaging angle of LAO 90 degrees and CRAN / CAUD 0 degrees (on the left side of the subject 101). In order to execute this stored fifth setting information, the operator selects the X-ray source placement switch 80e (a switch at a position corresponding to the placement of the first X-ray source 1a, which is the main X-ray source) on the placement screen 8 during actual imaging.

[0050] Further, sixth setting information is stored in the storage unit 5a, which indicates that when the first X-ray source 1a is placed at a target imaging angle of LAO / RAO 0 degrees and CAUD 30 degrees (on the lower limb side of the subject 101), the second X-ray source 2a is placed at a target imaging angle of LAO 90 degrees and CRAN / CAUD 0 degrees (on the left side of the subject 101). In order to execute this stored sixth setting information, the operator selects the X-ray source placement switch 80f (a switch at a position corresponding to the placement of the first X-ray source 1a, which is the main X-ray source) on the placement screen 8 during actual imaging.

[0051] Furthermore, seventh setting information is stored in the storage unit 5a, which indicates that when the second X-ray source 2a is placed at a target imaging angle of LAO 45 degrees and CRAN 25 degrees (to the left side and head side of the subject 101), the first X-ray source 1a is placed at a target imaging angle of RAO 20 degrees and CRAN 20 degrees (to the right side and head side of the subject 101). In order to execute this stored seventh setting information, the operator selects the X-ray source placement switch 80g (a switch at a position corresponding to the placement of the second X-ray source 2a, which is the main X-ray source) on the placement screen 8 for actual imaging.

[0052] Furthermore, eighth setting information is stored in the storage unit 5a, which indicates that when the second X-ray source 2a is placed at a target imaging angle of LAO 60 degrees and CRAN / CAUD 0 degrees (left side of the subject 101), the first X-ray source 1a is placed at a target imaging angle of RAO 20 degrees and CRAN / CAUD 0 degrees (right side and lower limb side of the subject 101). In order to execute this stored eighth setting information, the operator selects the X-ray source placement switch 80h (a switch at a position corresponding to the placement of the second X-ray source 2a, which is the main X-ray source) on the placement screen 8 during actual imaging.

[0053] Furthermore, ninth setting information is stored in the storage unit 5a, which indicates that when the second X-ray source 2a is placed at a target imaging angle of LAO 50 degrees and CAUD 30 degrees (on the left side and lower limb side of the subject 101), the first X-ray source 1a is placed at a target imaging angle of RAO 20 degrees and CAUD 20 degrees (on the right side and lower limb side of the subject 101). In order to execute this stored ninth setting information, the operator selects the X-ray source placement switch 80i (a switch at a position corresponding to the placement of the second X-ray source 2a, which is the main X-ray source) on the placement screen 8 during actual imaging.

[0054] As described above, each piece of setting information as X-ray source arrangement information is executed by the operator selecting one of the X-ray source arrangement switches 80 (80a to 80i) on the arrangement screen 8 and then selecting the position change switch 83. When the position change switch 83 is selected, the first X-ray source 1a and the second X-ray source 2a are moved to an arrangement for a target imaging angle.

[0055] 7 and 8 , the display unit 3 is configured to display an arrangement screen (arm arrangement screen) 8 showing an arrangement corresponding to the positions of both the first X-ray source 1a and the second X-ray source 2a at a target imaging angle relative to the actual position of the subject 101. Therefore, by checking the arrangement screen 8, the operator can intuitively grasp the rough arrangement of the first X-ray source 1a and the second X-ray source 2a relative to the subject 101 during imaging.

[0056] The display unit 3 is configured to display, on an arrangement screen 8 of the display unit 3, a plurality of (nine) X-ray source arrangement switches (memory switches) 80 indicating positions at which the first X-ray source 1a and the second X-ray source 2a can be arranged with respect to the subject 101. The imaging angle setting unit 4 is configured by the plurality of X-ray source arrangement switches 80.

[0057] In detail, the multiple X-ray source arrangement switches 80 include a single central subject section 81 with a design 81a showing a supine subject 101, and multiple (eight) peripheral sections 82 arranged to surround the subject section 81 in a plan view. The design 81a of the subject section 81 is shown so that the head side faces left on the screen, the lower limbs face right on the screen, the left upper limb faces upward on the screen, and the right upper limb faces downward on the screen. The multiple X-ray source arrangement switches 80 are arranged in a 3 x 3 (3 rows and 3 columns) grid (matrix).

[0058] The display unit 3 is configured to display the left-right angle (tilt angle in the left-right direction relative to the vertical axis) and the body axis angle (tilt angle in the body axis direction relative to the vertical axis) with respect to the subject 101 as the target imaging angle. The left-right angle is displayed in each section of the X-ray source placement switch 80 by the LAO / RAO. The body axis angle is displayed in each section of the X-ray source placement switch 80 by the CRAN / CAUD.

[0059] (Configuration of Control Unit) The control unit (display control unit) 5 shown in FIG. 4 is configured to perform control such that, when one of the arrangements of the first X-ray source 1 a and the second X-ray source 2 a is selected and displayed on the arrangement screen 8 of the display unit 3 via the imaging angle setting unit 4 (X-ray source arrangement switch 80), the other arrangement of the first X-ray source 1 a and the second X-ray source 2 a is automatically selected and displayed.

[0060] In this case, the control unit 5 is configured to perform control such that the partition frame line 84 indicating the X-ray source arrangement switch 80 of one of the first X-ray source 1a and the second X-ray source 2a selected via the imaging angle setting unit 4 is displayed thicker than the partition frame line 84 indicating the other X-ray source arrangement switch 80 of the first X-ray source 1a and the second X-ray source 2a. In other words, the partition frame line 84 indicating the X-ray source arrangement switch 80 corresponding to the arrangement of the main X-ray source is thicker than the partition frame line 84 indicating the X-ray source arrangement switch 80 corresponding to the arrangement of the sub X-ray source.

[0061] 6 is stored in the storage unit 5a, the control unit 5 sets the first X-ray source 1a of the frontal arm as the main X-ray source when any of the six X-ray source arrangement switches 80a to 80f on the lower side is selected (pressed). That is, the control unit 5 sets the first X-ray source 1a to be moved to the arrangement of the X-ray source arrangement switch 80 actually selected by the operator. In this case, the second X-ray source 2a is automatically set as the sub X-ray source.

[0062] Furthermore, when any of the three X-ray source arrangement switches 80g to 80i on the upper side is selected (pressed), the control unit 5 sets the second X-ray source 2a of the lateral arm as the main X-ray source. That is, the control unit 5 sets the second X-ray source 2a to be moved to a predetermined arrangement associated with the X-ray source arrangement switch 80 actually selected by the operator. In this case, the first X-ray source 1a is automatically set as the sub X-ray source.

[0063] The control unit 5 is configured to perform control to display both the selected arrangements of the first X-ray source 1a and the second X-ray source 2a in a distinguishable manner on the arrangement screen 8. In detail, when any one of the multiple X-ray source arrangement switches 80 is selected via the imaging angle setting unit 4, the control unit 5 is configured to perform control to simultaneously display the X-ray source arrangement switch 80 associated with the target imaging angle of the first X-ray source 1a and the X-ray source arrangement switch 80 associated with the target imaging angle of the second X-ray source 2a on the display unit 3 in a distinguishable manner from the other X-ray source arrangement switches 80.

[0064] As a specific example, when X-ray source arrangement information such as that shown in FIG. 6 is stored in the memory unit 5a, and the operator selects the X-ray source arrangement switch 80a at the bottom left of the arrangement screen 8 (to the right of the subject 101 and toward the head), the control unit 5 automatically selects the X-ray source arrangement switch 80i at the top right of the screen, and performs control to simultaneously display the X-ray source arrangement switches 80a and 80i on the display unit 3 in a manner that enables them to be distinguished from the other X-ray source arrangement switches 80.

[0065] That is, the control unit 5 is configured to control the display color of the X-ray source placement switch 80, which indicates the position where the selected first X-ray source 1a is to be placed, to change to a first identification color 9a (blue), and the display color of the X-ray source placement switch 80, which indicates the position where the selected second X-ray source 2a is to be placed, to a second identification color 9b (yellow) different from the first identification color 9a.

[0066] In this case, the control unit 5 is configured to control the display of the X-ray source positioning switch 80 associated with the target imaging angle of the first X-ray source 1a in a first identification color 9a (yellow) that is the same as the first appearance color 6a (yellow) of the first arm 1, and the display of the X-ray source positioning switch 80 associated with the target imaging angle of the second X-ray source 2a in a second identification color 9b (blue) that is the same as the second appearance color 6b (blue) of the second arm 2.

[0067] The control unit 5 is also configured to control the display of the left-right angle and the body axis angle relative to the subject 101 as the target imaging angle within each of the division frame lines 84 of the multiple X-ray source placement switches 80.

[0068] In this case, the control unit 5 is configured to perform control to display the target imaging angle of one of the first X-ray source 1a and the second X-ray source 2a (the angle in the left-right direction and the angle in the body axis direction with respect to the subject 101) within the division frame line 84 of each of the multiple X-ray source arrangement switches 80 before the X-ray source arrangement switch 80 is selected via the imaging angle setting unit 4. In other words, the control unit 5 performs control to display the target imaging angle of the main X-ray source within the division frame line 84 of each of the multiple X-ray source arrangement switches 80. At this point, the target imaging angle of the sub X-ray source is not displayed within the division frame line 84 at all.

[0069] When any one of the plurality of X-ray source placement switches 80 is selected and displayed via the imaging angle setting unit 4, the control unit 5 is configured to automatically select and display one of the plurality of X-ray source placement switches 80 as the X-ray source placement switch 80 for placing the other of the first X-ray source 1 a and the second X-ray source 2 a, based on the X-ray source placement information (see FIG. 6 ), and to perform control to replace the target imaging angle displayed within the partition frame line 84 of the automatically selected and displayed X-ray source placement switch 80 with the target imaging angle of the other of the first X-ray source 1 a and the second X-ray source 2 a.

[0070] 6 is stored in the storage unit 5a, when the operator selects the X-ray source arrangement switch 80a at the bottom left of the screen (to the right of the subject 101 and toward the head), the control unit 5 automatically selects and displays the X-ray source arrangement switch 80i at the top right of the screen. In this case, the X-ray source arrangement switch 80a indicates the arrangement of the first X-ray source 1a, which is the main X-ray source for the subject 101, and the X-ray source arrangement switch 80i indicates the arrangement of the second X-ray source 2a, which is the sub X-ray source for the subject 101. At this time, the control unit 5 changes the target imaging angle displayed within the partition frame 84 of the X-ray source arrangement switch 80i from "LAO 50 degrees and CAUD 30 degrees (see FIG. 7)" to "LAO 45 degrees and CAUD 30 degrees (see FIG. 8)" based on the X-ray source arrangement information.

[0071] The control unit 5 is configured to control the irradiation of X-rays from the front or back of the subject 101 in a planar view when the operator selects the centrally located subject section 81, and to control the irradiation of X-rays from the periphery of the subject 101 in a planar view when the operator selects the peripheral section 82.

[0072] (Control process flow for moving the X-ray source executed by the control unit) Next, a control process flow for moving the X-ray source executed by the control unit (display control unit) 5 will be described with reference to Fig. 9. Note that the control process flow will be described assuming that the initial state in which a predetermined operation for displaying the layout screen 8 on the display unit 3 (touch panel 300) has been performed is the start.

[0073] In the initial state, a plurality of X-ray source arrangement switches 80 are displayed in a 3 x 3 pattern on the arrangement screen 8. Also, in the initial state, the target imaging angle of the main X-ray source is displayed in each section of the plurality of X-ray source arrangement switches 80.

[0074] First, in step S1, it is determined whether or not any of the plurality of X-ray source arrangement switches 80 has been operated (pressed). If any of the plurality of X-ray source arrangement switches 80 has been operated, the process proceeds to step S2.

[0075] In step S2, the X-ray source arrangement switch 80 indicating the operated main X-ray source is displayed in the first identification color 9a (in a manner that allows it to be distinguished from other X-ray source arrangement switches 80). At this time, the division frame line 84 of the X-ray source arrangement switch 80 is displayed thicker. As an example, FIG. 8 shows a case where the X-ray source arrangement switch 80a on the right side and head side of the subject 101 has been operated. Then, the process proceeds to step S3.

[0076] In step S3, based on the X-ray arrangement information (see FIG. 6) stored in the storage unit 5a, the X-ray source arrangement switch 80 indicating the sub X-ray source is displayed in the second identification color 9b (in a manner that allows it to be distinguished from the other X-ray source arrangement switches 80). As an example, FIG. 8 shows a case where the X-ray source arrangement switch 80i on the left side and lower limb side of the subject 101 is automatically selected and displayed. Then, the process proceeds to step S4.

[0077] In step S4, the target imaging angle of the main X-ray source displayed in the section of the X-ray source arrangement switch 80 indicating the sub X-ray source is replaced with the target imaging angle of the sub X-ray source. That is, the angle shown in Fig. 7 is changed to the angle shown in Fig. 8. Then, the process proceeds to step S5.

[0078] In step S5, it is determined whether or not the position change switch 83 has been operated (depressed). If the position change switch 83 has been operated, the process proceeds to step S6.

[0079] In step S6, the first X-ray source 1a is moved to a target imaging angle, and the second X-ray source 2a is moved to a target imaging angle.

[0080] As a specific example, if the X-ray source positioning switch 80a is operated in step S1, the first X-ray source 1a, which is the main X-ray source, is moved to a target imaging angle of RAO 30 degrees and CRAN 30 degrees (toward the right side and head of the subject 101). Also, the second X-ray source 2a, which is the sub X-ray source, is moved to a target imaging angle of LAO 45 degrees and CAUD 30 degrees (toward the left side and lower limbs of the subject 101). This completes the control process flow for moving the X-ray sources, which is executed by the control unit 5.

[0081] [Effects of this embodiment] In this embodiment, the following effects can be obtained.

[0082] In this embodiment, as described above, the display unit 3 is configured to display the arrangement screen 8 showing the arrangement corresponding to the positions of both the first X-ray source 1a and the second X-ray source 2a at the target imaging angle relative to the actual position of the subject 101. This allows the positions of both the first X-ray source 1a and the second X-ray source 2a relative to the subject 101 to be understood through an image that can be visually confirmed like a map on the arrangement screen 8. Furthermore, the imaging angle setting unit 4 and the display unit 3 are provided in the same arrangement region 103 of the X-ray imaging device main body 100a. This allows both the imaging angle setting unit 4 and the display unit 3 to be confirmed without moving the line of sight. As a result, the operation to move the first X-ray source 1a and the second X-ray source 2a can be performed without moving the line of sight, and the operation to move the first X-ray source 1a and the second X-ray source 2a can be performed intuitively.

[0083] In addition, in this embodiment, as described above, the imaging angle setting unit 4 and the display unit 3 are integrally configured as the touch panel 300. This simplifies the device configuration for displaying and operating (setting) for moving the first X-ray source 1 a and the second X-ray source 2 a using the touch panel 300.

[0084] Furthermore, in this embodiment, as described above, the control unit 5 is further provided which performs control to automatically select and display the other arrangement of the first X-ray source 1a and the second X-ray source 2a when one of the arrangements of the first X-ray source 1a and the second X-ray source 2a is selected and displayed on the arrangement screen 8 of the display unit 3 via the imaging angle setting unit 4. This eliminates the need for the operator to select the other arrangement of the first X-ray source 1a and the second X-ray source 2a, thereby reducing the operational burden.

[0085] Furthermore, in this embodiment, as described above, the control unit 5 is configured to perform control to display the selected arrangements of both the first X-ray source 1a and the second X-ray source 2a in a distinguishable manner on the arrangement screen 8. This allows the operator to visually and easily distinguish the selected arrangements of the first X-ray source 1a and the second X-ray source 2a on the arrangement screen 8. As a result, the operator can more intuitively perform the operation to move the first X-ray source 1a and the second X-ray source 2a.

[0086] Furthermore, in this embodiment, as described above, the display unit 3 is configured to display, on the arrangement screen 8 of the display unit 3, a plurality of X-ray source arrangement switches 80 (80a to 80i) indicating positions at which the first X-ray source 1a and the second X-ray source 2a can be arranged with respect to the subject 101, and the control unit 5 is configured to perform control so that, when any one of the plurality of X-ray source arrangement switches 80 is selected via the imaging angle setting unit 4, the X-ray source arrangement switch 80 associated with the target imaging angle of the first X-ray source 1a and the X-ray source arrangement switch 80 associated with the target imaging angle of the second X-ray source 2a are simultaneously displayed on the display unit 3 in a manner that allows them to be distinguished from the other X-ray source arrangement switches 80. This makes it possible to visually easily distinguish, among the plurality of X-ray source arrangement switches 80, the switch at which the first X-ray source 1a is arranged, the switch at which the second X-ray source 2a is arranged, and the other switches.

[0087] Furthermore, in this embodiment, as described above, the control unit 5 is configured to perform control to change the display color of the X-ray source arrangement switch 80, which indicates the position at which the selected first X-ray source 1a is to be arranged, to the first identification color 9a, and to change the display color of the X-ray source arrangement switch 80, which indicates the position at which the selected second X-ray source 2a is to be arranged, to the second identification color 9b, which is different from the first identification color 9a. In this way, the positions at which the selected first X-ray source 1a and second X-ray source 2a are to be arranged can be easily recognized by the display mode in which the display colors are changed.

[0088] Furthermore, in this embodiment, as described above, the first arm 1 is colored in the first appearance color 6a, and the second arm 2 is colored in the second appearance color 6b different from the first appearance color 6a. The control unit 5 is configured to perform control to display the X-ray source arrangement switch 80 associated with the target imaging angle of the first X-ray source 1a in the first identification color 9a that is the same as the first appearance color 6a of the first arm 1, and to display the X-ray source arrangement switch 80 associated with the target imaging angle of the second X-ray source 2a in the second identification color 9b that is the same as the second appearance color 6b of the second arm 2. This makes it possible to associate the first X-ray source 1a and the second X-ray source 2a arranged around the subject 101 with the X-ray source arrangement switches 80 of the first X-ray source 1a and the second X-ray source 2a, respectively, by the first identification color 9a and the second identification color 9b. As a result, it is possible to more easily recognize the positions at which the selected first X-ray source 1a and second X-ray source 2a are arranged.

[0089] Furthermore, in this embodiment, as described above, the control unit 5 is configured to perform control such that the partition frame line 84 indicating one of the X-ray source arrangement switches 80 of the first X-ray source 1a and the second X-ray source 2a selected via the imaging angle setting unit 4 is displayed thicker than the partition frame line 84 indicating the other of the X-ray source arrangement switches 80 of the first X-ray source 1a and the second X-ray source 2a. This allows the operator to visually easily distinguish between the partition frame line 84 indicating one of the X-ray source arrangement switches 80 of the first X-ray source 1a and the second X-ray source 2a selected by the operator via the imaging angle setting unit 4 and the partition frame line 84 indicating the other of the X-ray source arrangement switches 80 of the first X-ray source 1a and the second X-ray source 2a.

[0090] Furthermore, in this embodiment, as described above, the control unit 5 further includes the memory unit 5a that stores X-ray source arrangement information that associates the arrangements of the first X-ray source 1a and the second X-ray source 2a with each other. The control unit 5 is configured to perform control to display the target imaging angle of one of the first X-ray source 1a and the second X-ray source 2a within the partition frame line 84 of each of the multiple X-ray source arrangement switches 80 before the X-ray source arrangement switch 80 is selected via the imaging angle setting unit 4. When one of the multiple X-ray source arrangement switches 80 is selected and displayed via the imaging angle setting unit 4, the control unit 5 automatically selects and displays one of the multiple X-ray source arrangement switches 80 as the X-ray source arrangement switch 80 for arranging the other of the first X-ray source 1a and the second X-ray source 2a based on the X-ray source arrangement information, and replaces the target imaging angle displayed within the partition frame line 84 of the automatically selected and displayed X-ray source arrangement switch 80 with the target imaging angle of the other of the first X-ray source 1a and the second X-ray source 2a. This allows the target imaging angle displayed within the frame line 84 of the automatically selected and displayed X-ray source arrangement switch 80 to be replaced with the other target imaging angle of the first X-ray source 1 a and the second X-ray source 2 a, thereby reducing the workload of replacing the target imaging angle with the other target imaging angle of the first X-ray source 1 a and the second X-ray source 2 a. Also, the other target imaging angle of the first X-ray source 1 a and the second X-ray source 2 a can be easily confirmed.

[0091] Furthermore, in this embodiment, as described above, the multiple X-ray source arrangement switches 80 include one subject section 81 with a design 81a representing the subject 101 and multiple peripheral sections 82 arranged to surround the subject section 81, and the control unit 5 is configured to perform control such that when the subject section 81 is selected, X-rays are irradiated from the front or back of the subject 101 in a planar view, and when the peripheral sections 82 are selected, X-rays are irradiated from the periphery of the subject 101 in a planar view. This makes it possible to easily understand each X-ray source arrangement switch 80 in association with the posture and orientation of the subject 101.

[0092] Furthermore, in this embodiment, as described above, the display unit 3 is configured to display the angle in the left-right direction and the angle in the body axis direction with respect to the subject 101 as the target imaging angle, and the control unit 5 is configured to perform control to display the angle in the left-right direction and the angle in the body axis direction with respect to the subject 101 as the target imaging angle within the division frame line 84 of each of the multiple X-ray source arrangement switches 80. This allows the angle in the left-right direction and the angle in the body axis direction to be displayed separately, making it easy to grasp the arrangement of the X-ray source with respect to the subject 101.

[0093] Furthermore, in this embodiment, as described above, the display unit 3 is configured to be able to display the pre-arrangement setting screen 7 on which the settings relating the mutual arrangements of the first X-ray source 1a and the second X-ray source 2a and the target imaging angles of the first X-ray source 1a and the second X-ray source 2a are made and the arrangement screen 8 based on the information set on the pre-arrangement setting screen 7. As a result, the pre-arrangement setting screen 7 and the arrangement screen 8 can easily perform both the operation of setting the target imaging angles of the first X-ray source 1a and the second X-ray source 2a and the operation of setting the arrangements of the first X-ray source 1a and the second X-ray source 2a.

[0094] [Modifications] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims, not by the description of the above-mentioned embodiments, and further includes all modifications (modifications) within the meaning and scope of the claims.

[0095] That is, in the above embodiment, an example was shown in which the X-ray imaging device was a general X-ray imaging device installed in an X-ray imaging room, but the present invention is not limited to this. For example, the X-ray imaging device may be a mobile X-ray imaging device.

[0096] In the above embodiment, the X-ray imaging apparatus is provided with a C-arm, but the present invention is not limited to this. In the present invention, the X-ray imaging apparatus may be provided with an L-arm or the like.

[0097] In addition, in the above embodiment, an example is shown in which the display unit and the shooting angle setting unit are integrally configured (configured as a touch panel), but the present invention is not limited to this. In the present invention, the display unit and the shooting angle setting unit may be separate units.

[0098] In the above embodiment, the X-ray source arrangement switches are displayed in a 3×3 grid, but the present invention is not limited to this. In the present invention, the X-ray source arrangement switches may be displayed in a 5×5 grid, for example.

[0099] In the above embodiment, an example has been shown in which when an operator selects the arrangement of the first X-ray source from the plurality of X-ray source arrangement switches, the arrangement of the second X-ray source is automatically selected from the plurality of X-ray source arrangement switches, but the present invention is not limited to this. The present invention may be configured so that an operator selects both the arrangement of the first X-ray source and the arrangement of the second X-ray source from the plurality of X-ray source arrangement switches.

[0100] In the above embodiment, the first appearance color and the first identification color are blue, but the present invention is not limited to this. In the present invention, the first appearance color and the first identification color may be a color other than blue as long as they are different from the second appearance color and the second identification color.

[0101] In the above embodiment, the second appearance color and the second identification color are yellow, but the present invention is not limited to this. In the present invention, the second appearance color and the second identification color may be a color other than yellow as long as they are different from the first appearance color and the first identification color.

[0102] It will be appreciated by those skilled in the art that the exemplary embodiments described above are examples of the following aspects.

[0103] [Aspect] (Item 1) An X-ray imaging apparatus comprising: a first arm that supports a first X-ray source and a first X-ray detector so as to face each other; a second arm that supports a second X-ray source and a second X-ray detector so as to face each other; an imaging angle setting unit that sets a target imaging angle for each of the first X-ray source and the second X-ray source; and a display unit that displays the content set by the imaging angle setting unit, wherein the display unit is configured to display an arrangement screen that shows an arrangement corresponding to the positions of both the first X-ray source and the second X-ray source at the target imaging angle relative to an actual position of a subject, and the imaging angle setting unit and the display unit are provided in the same arrangement area of ​​a main body of the X-ray imaging apparatus. (Item 2) The X-ray imaging apparatus according to Item 1, wherein the imaging angle setting unit and the display unit are integrally configured as a touch panel. (Item 3) The X-ray imaging device according to Item 1, further comprising a control unit that performs control to automatically select and display, when an arrangement of one of the first X-ray source and the second X-ray source is selected and displayed on the arrangement screen of the display unit via the imaging angle setting unit, the arrangement of the other of the first X-ray source and the second X-ray source. (Item 4) The X-ray imaging device according to Item 3, wherein the control unit is configured to perform control to display, on the arrangement screen, both of the selected arrangements of the first X-ray source and the second X-ray source in a distinguishable manner. (Item 5) The X-ray imaging device according to Item 4, wherein the display unit is configured to display, on the arrangement screen of the display unit, a plurality of X-ray source arrangement sections indicating positions where the first X-ray source and the second X-ray source can be arranged with respect to the subject, side by side, and the control unit is configured to, when any one of the plurality of X-ray source arrangement sections is selected via the imaging angle setting unit, perform control to simultaneously display on the display unit the X-ray source arrangement section associated with the target imaging angle of the first X-ray source and the X-ray source arrangement section associated with the target imaging angle of the second X-ray source in a manner that allows them to be distinguished from each other.(Item 6) The X-ray imaging device according to item 5, wherein the control unit is configured to perform control to change the display color of the X-ray source placement section indicating the position at which the selected first X-ray source is to be placed to a first identification color, and to change the display color of the X-ray source placement section indicating the position at which the selected second X-ray source is to be placed to a second identification color different from the first identification color. (Item 7) The X-ray imaging device according to item 6, wherein the first arm is colored with a first appearance color, and the second arm is colored with a second appearance color different from the first appearance color, and the control unit is configured to perform control to display the X-ray source placement section associated with the target imaging angle of the first X-ray source in the first identification color that is the same as the first appearance color of the first arm, and to display the X-ray source placement section associated with the target imaging angle of the second X-ray source in the second identification color that is the same as the second appearance color of the second arm. (Item 8) The X-ray imaging device according to Item 5, wherein the control unit is configured to perform control to display a section border line indicating an X-ray source arrangement section of one of the first X-ray source and the second X-ray source selected via the imaging angle setting unit thicker than a section border line indicating an X-ray source arrangement section of the other of the first X-ray source and the second X-ray source. (Item 9) The X-ray imaging device according to Item 5, further comprising: a storage unit that stores X-ray source arrangement information that associates arrangements of the first X-ray source and the second X-ray source with each other; and the control unit is configured to: before selecting the X-ray source arrangement section via the imaging angle setting unit, perform control to display the target imaging angle of one of the first X-ray source and the second X-ray source within a section frame line of each of the plurality of X-ray source arrangement sections; and when any one of the plurality of X-ray source arrangement sections is selected and displayed via the imaging angle setting unit, automatically select and display one of the plurality of X-ray source arrangement sections as the X-ray source arrangement section in which the other of the first X-ray source and the second X-ray source is to be arranged based on the X-ray source arrangement information, and to perform control to replace the target imaging angle displayed within the section frame line of the automatically selected and displayed X-ray source arrangement section with the target imaging angle of the other of the first X-ray source and the second X-ray source.(Item 10) The X-ray imaging apparatus according to Item 5, wherein the plurality of X-ray source arrangement sections include one subject section showing a design representing the subject and a plurality of peripheral sections arranged to surround the subject section, and the control unit is configured to perform control to irradiate X-rays from the front or back of the subject in a planar view when the subject section is selected, and to irradiate X-rays from the periphery of the subject in a planar view when the peripheral section is selected. (Item 11) The X-ray imaging apparatus according to Item 5, wherein the display unit is configured to display an angle in the left-right direction and an angle in the body axis direction with respect to the subject as the target imaging angle, and the control unit is configured to perform control to display the angle in the left-right direction and the angle in the body axis direction with respect to the subject as the target imaging angle within a section frame line of each of the plurality of X-ray source arrangement sections. (Item 12) The X-ray imaging device according to Item 1, wherein the display unit is configured to be able to display a pre-arrangement setting screen for setting a relationship between the arrangements of the first X-ray source and the second X-ray source and setting the target imaging angles of the first X-ray source and the second X-ray source, and the arrangement screen based on information set on the pre-arrangement setting screen.

[0104] REFERENCE SIGNS LIST 1 First arm 1a First X-ray source 1b First X-ray detector 2 Second arm 2a Second X-ray source 2b Second X-ray detector 3 Display unit 4 Imaging angle setting unit 5 Control unit 5a Memory unit 6a First appearance color 6b Second appearance color 7 Pre-arrangement setting screen 8 Arrangement screen 9a First identification color 9b Second identification color 80, 80a to 80i X-ray source arrangement switch (X-ray source arrangement section) 81 Subject section 81a Design 82 Surrounding section 84 Section frame line 100 X-ray imaging device 100a X-ray imaging device main body 101 Subject 103 Arrangement area 300 Touch panel

Claims

1. a first arm supporting the first X-ray source and the first X-ray detector so as to face each other; a second arm supporting the second X-ray source and the second X-ray detector so as to face each other; an imaging angle setting unit that sets a target imaging angle of each of the first X-ray source and the second X-ray source; a display unit that displays an arrangement screen including a plurality of X-ray source arrangement sections that indicate positions where the first X-ray source and the second X-ray source can be arranged with respect to a subject; a control unit that performs control to simultaneously display, on the display unit, the X-ray source arrangement section associated with the target imaging angle of the first X-ray source and the X-ray source arrangement section associated with the target imaging angle of the second X-ray source in a manner that allows them to be distinguished from other X-ray source arrangement sections when any one of the plurality of X-ray source arrangement sections is selected; An X-ray imaging device comprising:

2. The X-ray imaging apparatus according to claim 1 , wherein the imaging angle setting unit and the display unit are integrally configured as a touch panel.

3. The X-ray imaging device described in claim 1, wherein the control unit performs control to automatically select and display the other arrangement of the first X-ray source and the second X-ray source when one arrangement of the first X-ray source and the second X-ray source is selected and displayed on the arrangement screen of the display unit via the shooting angle setting unit.

4. 4. The X-ray imaging device according to claim 3, wherein the control unit is configured to perform control to display, on the arrangement screen, both the selected arrangements of the first X-ray source and the second X-ray source in a distinguishable manner.

5. The control unit is changing a display color of the X-ray source arrangement section, which indicates a position where the selected first X-ray source is to be arranged, to a first identification color; 2. The X-ray imaging device according to claim 1, further comprising a control unit configured to change a display color of the X-ray source placement section, which indicates a position at which the selected second X-ray source is to be placed, to a second identification color different from the first identification color.

6. the first arm is colored with a first appearance color; the second arm is colored with a second appearance color different from the first appearance color, The control unit is displaying the X-ray source arrangement section associated with the target imaging angle of the first X-ray source in the first identification color that is the same as the first appearance color of the first arm; 6. The X-ray imaging device according to claim 5, further comprising a control unit configured to display the X-ray source arrangement section associated with the target imaging angle of the second X-ray source in the second identification color that is the same as the second appearance color of the second arm.

7. 2. The X-ray imaging device according to claim 1, wherein the control unit is configured to perform control to display a partition frame line indicating the X-ray source arrangement partition of the one of the first X-ray source and the second X-ray source selected via the imaging angle setting unit thicker than a partition frame line indicating the X-ray source arrangement partition of the other of the first X-ray source and the second X-ray source.

8. a storage unit configured to store X-ray source arrangement information that associates arrangements of the first X-ray source and the second X-ray source with each other; The control unit is performing control to display the target imaging angle of one of the first X-ray source and the second X-ray source within a partition frame line of each of the plurality of X-ray source arrangement partitions before the selection of the X-ray source arrangement partition via the imaging angle setting unit; 2. The X-ray imaging device according to claim 1, wherein, when one of the plurality of X-ray source arrangement sections is selected and displayed via the imaging angle setting unit, one of the plurality of X-ray source arrangement sections is automatically selected and displayed as the X-ray source arrangement section in which the other of the first X-ray source and the second X-ray source is arranged, based on the X-ray source arrangement information, and the target imaging angle displayed within a section frame line of the X-ray source arrangement section automatically selected and displayed is replaced with the target imaging angle of the other of the first X-ray source and the second X-ray source.

9. the plurality of X-ray source arrangement sections include one subject section having a pattern representing the subject, and a plurality of peripheral sections arranged to surround the subject section; 2. The X-ray imaging apparatus according to claim 1, wherein the control unit is configured to perform control such that, when the subject section is selected, X-rays are irradiated from the front or back of the subject in a planar view, and when the peripheral section is selected, X-rays are irradiated from the periphery of the subject in a planar view.

10. the display unit is configured to display an angle in a left-right direction and an angle in a body axis direction with respect to the subject as the target imaging angle, 2. The X-ray imaging device according to claim 1, wherein the control unit is configured to perform control to display a left-right angle and a body axis angle with respect to the subject as the target imaging angle within a partition frame line of each of the multiple X-ray source arrangement partitions.

11. 2. The X-ray imaging device according to claim 1, wherein the display unit is configured to be capable of displaying a pre-arrangement setting screen for setting a relationship between the arrangements of the first X-ray source and the second X-ray source and for setting the target imaging angles of the first X-ray source and the second X-ray source, and the arrangement screen based on information set on the pre-arrangement setting screen.

12. An X-ray imaging device as described in claim 1, wherein the imaging angle setting unit and the display unit are provided within the same arrangement area of ​​the X-ray imaging device main body.