WO2011161972A1

WO2011161972A1 - Radiological imaging display method and system

Info

Publication number: WO2011161972A1
Application number: PCT/JP2011/003612
Authority: WO
Inventors: 弘毅中山
Original assignee: 富士フイルム株式会社
Priority date: 2010-06-25
Filing date: 2011-06-24
Publication date: 2011-12-29
Also published as: JP2012005665A

Abstract

Disclosed is a radiological imaging display method for suitably displaying, according to the objective, a stereoscopic image in which the entirety of a subject is capable of suitably being viewed stereoscopically, and a stereoscopic image used for designating a specific position within the body of the subject. A radiological imaging display method acquires radiation images for each imaging direction detected by a radiation image detector by way of exposure of radiation to the subject body from mutually different imaging directions and displays a stereoscopic image using the acquired radiation images for each imaging direction. In the radiological imaging display method, a radiation image of two imaging directions that form a first convergence angle for configuring a stereoscopic image for observation use of a subject is acquired and displayed; and a radiation image of two imaging directions that form a second convergence angle, which is larger than the first convergence angle, for configuring a stereoscopic image for position designation use for designating a predetermined position within the subject is acquired and displayed.

Description

Radiographic imaging display method and system

The present invention relates to a radiographic imaging display method and system for displaying a stereoscopic image using a radiographic image detected by a radiographic image detector by irradiating a subject from different directions. It is used in a stereo biopsy device that specifies a position of a lesion or the like on an image and collects a tissue piece at that position.

In a hospital examination, a tissue piece around a lesion may be collected. Recently, as a method of collecting a tissue piece without imposing a heavy burden on a patient, a hollow tissue collecting needle (hereinafter referred to as a biopsy needle) is used. A biopsy that attracts the patient and collects the tissue embedded in the needle cavity has attracted attention. A stereo biopsy device has been proposed as a device for performing such a biopsy.

This stereo biopsy device irradiates a subject with radiation from different directions, acquires a plurality of radiation images having parallax, and displays a stereoscopic image (stereo image) based on these radiation images. Yes, it is possible to specify the three-dimensional position of the lesion while observing this stereoscopic image, and to extract a tissue piece from a desired position by controlling the tip of the biopsy needle to reach the specified position It is something that can be done.

Japanese Patent Laid-Open No. 10-005206

Here, in the stereo biopsy device as described above, when displaying a stereoscopic image capable of appropriately stereoscopically viewing the entire subject, it is necessary to display a stereoscopic image with a sense of depth over the entire subject, When displaying a stereoscopic image used for designating a specific lesion position in a subject, it is necessary to display a stereoscopic image capable of designating a position with higher accuracy.

Further, the convergence angles necessary for constructing these stereoscopic images do not necessarily match, and conventionally, it has been impossible to display a stereoscopic image that satisfies these requirements.

In Patent Document 1, the distance between the observer and the monitor is measured at the stage of displaying the stereoscopic image on the monitor, and the distance between the center of the image for the right eye and the image for the left eye is measured based on the distance. It has been proposed to adjust the distance so that the difference in the shooting angle matches the difference in the viewing angle of each eye of the observer, but the stereoscopic image for observation and the stereoscopic image for position designation as described above are proposed. No proposal has been made regarding a method for displaying a visual image more appropriately.

In view of the above circumstances, the present invention appropriately displays a stereoscopic image capable of appropriately stereoscopically viewing the entire subject and a stereoscopic image used for designating a specific position in the subject according to the purpose. An object of the present invention is to provide a radiographic imaging display method and system that can be used.

The radiographic imaging display method of the present invention acquires a radiographic image for each imaging direction detected by a radiographic image detector by irradiating a subject from different imaging directions, and the acquired radiographic image for each imaging direction is acquired. In the radiographic image capturing / displaying method for displaying a stereoscopic image using, the radiographic images in the two imaging directions forming the first convergence angle are acquired and displayed as constituting a stereoscopic image for observing the subject, Acquire and display radiation images in two imaging directions having a second convergence angle larger than the first convergence angle as constituting a stereoscopic image for position designation for designating a predetermined position in the subject. It is characterized by doing.

A radiographic imaging display system according to the present invention includes a radiation irradiating unit that irradiates a subject with radiation from different imaging directions, a radiation image detector that detects radiation that has been irradiated by the radiation irradiating unit and transmitted through the subject, and radiographic image detection In a radiographic imaging display system including a display device that acquires a radiographic image for each imaging direction detected by the instrument and displays a stereoscopic image using the acquired radiographic image for each imaging direction, the display device includes: A stereoscopic image for position designation for acquiring and displaying radiographic images in two imaging directions forming a first convergence angle as constituting a stereoscopic image for observing a subject and designating a predetermined position in the subject. The radiographic images in the two imaging directions forming the second convergence angle larger than the first convergence angle are acquired and displayed as the visual image. It is characterized in.

In the radiographic imaging display system of the present invention, a selection instruction receiving unit that receives a selection instruction for displaying a stereoscopic image for observing a subject or a stereoscopic image for position designation is provided. it can.

The radiation irradiating unit irradiates the subject with radiation from three imaging directions, and stores radiation images detected in advance by the radiation image detector by irradiating the subject with radiation from the three imaging directions. An image storage unit is provided, and the display device displays a stereoscopic image for observation using radiographic images in two imaging directions adjacent to each other among three radiographic images stored in the radiographic image storage unit. The position designation stereoscopic image can be displayed using the radiation images in the two imaging directions at both ends.

Also, the middle imaging direction among the above three imaging directions can be a direction perpendicular to the radiation irradiation surface of the radiation image detector.

Also, the first convergence angle can be set within the range of the second convergence angle.

Further, when a stereoscopic image for position designation is displayed on the display device, a position designation receiving unit that accepts designation of a predetermined position in the stereoscopic image for position designation can be provided.

In addition to supporting the biopsy needle, a movable needle support part and a needle position control part for controlling the position of the tip of the biopsy needle by moving the needle support part are provided. The needle support unit can be moved based on a predetermined position received by the reception unit.

Further, the second convergence angle can be set to 10 ° to 30 °.

Further, the first convergence angle can be set to 4 ° or more and 10 ° or less.

According to the radiographic image capturing and displaying method and system of the present invention, radiographic images in two imaging directions forming the first convergence angle are acquired and displayed as constituting a stereoscopic image for observing the subject, and the subject Acquiring and displaying radiographic images in two imaging directions forming a second convergence angle larger than the first convergence angle as constituting a stereoscopic image for position designation for designating a predetermined position in the image Thus, the entire subject can be appropriately stereoscopically viewed by forming a stereoscopic image using a radiographic image captured at a relatively small first convergence angle, and a relatively large second By constructing a stereoscopic image using radiographic images taken at a certain convergence angle, the shift amount in the depth direction of the radiographic image can be increased, so that the position resolution can be increased. It can be, it is possible to specify a specific position in the object with high accuracy.

Schematic configuration diagram of a stereo breast image radiographing display system using an embodiment of a radiographic image radiographing display system of the present invention The figure which looked at the arm part of the stereo breast image radiographing display system shown in FIG. 1 from the right direction of FIG. The figure which looked at the imaging stand of the stereo breast image radiographing display system shown in Drawing 1 from the upper part The block diagram which shows schematic structure inside the computer of the stereo breast image radiographing display system shown in FIG. The flowchart figure for demonstrating the effect | action of the stereo breast image radiographing display system using one Embodiment of the radiographic image radiographing display system of this invention. The figure for demonstrating the other imaging | photography method in the stereo breast image imaging | photography display system shown in FIG.

Hereinafter, a stereo breast imaging / displaying system using an embodiment of the radiation imaging / displaying system of the present invention will be described with reference to the drawings. The mammography / display system of the present embodiment is a system that also operates as a stereo biopsy device for breasts by attaching a detachable biopsy unit. First, a schematic configuration of the whole breast image capturing and displaying system according to the present embodiment will be described. FIG. 1 is a diagram showing a schematic configuration of a breast image capturing and displaying system in a state where a biopsy unit is attached.

As shown in FIG. 1, a breast image radiographing display system 1 of the present embodiment includes a mammography apparatus 10, a computer 8 connected to the mammography apparatus 10, a monitor 9 connected to the computer 8, and an input unit. 7.

As shown in FIG. 1, the mammography apparatus 10 includes a base 11, a rotary shaft 12 that can move in the vertical direction (Z direction) with respect to the base 11, and can rotate. The arm part 13 connected with the base 11 is provided. FIG. 2 shows the arm 13 viewed from the right direction in FIG.

The arm portion 13 has an alphabet C shape, and a radiation table 16 is attached to one end of the arm portion 13 so as to face the radiation table 14 at the other end. The rotation and vertical movement of the arm unit 13 are controlled by an arm controller 31 incorporated in the base 11.

Inside the imaging table 14 are provided a radiation image detector 15 such as a flat panel detector and a detector controller 33 that controls reading of a charge signal from the radiation image detector 15. Further, inside the imaging table 14, a charge amplifier that converts the charge signal read from the radiation image detector 15 into a voltage signal, a correlated double sampling circuit that samples the voltage signal output from the charge amplifier, A circuit board provided with an AD conversion unit for converting a voltage signal into a digital signal is also installed.

In addition, the photographing table 14 is configured to be rotatable with respect to the arm unit 13, and even when the arm unit 13 rotates with respect to the base 11, the direction of the photographing table 14 is fixed to the base 11. can do.

The radiation image detector 15 can repeatedly perform recording and reading of a radiation image, and may use a so-called direct type radiation image detector that directly receives radiation and generates charges. Alternatively, a so-called indirect radiation image detector that converts radiation once into visible light and converts the visible light into a charge signal may be used. As a radiation image signal readout method, a radiation image signal is read out by turning on / off a TFT (thin film transistor) switch, or by irradiating reading light. It is desirable to use a so-called optical readout system from which a radiation image signal is read out, but the present invention is not limited to this, and other systems may be used.

A radiation source 17 and a radiation source controller 32 are accommodated in the radiation irradiation unit 16. The radiation source controller 32 controls the timing of irradiating radiation from the radiation source 17 and the radiation generation conditions (tube current, time, tube current time product, etc.) in the radiation source 17.

Further, in the central portion of the arm portion 13, a compression plate 18 that is disposed above the imaging table 14 and presses and compresses the breast M, a support portion 20 that supports the compression plate 18, and a support portion 20 that extends in the vertical direction. A moving mechanism 19 for moving in the (Z direction) is provided. The position of the compression plate 18 and the compression pressure are controlled by the compression plate controller 34. FIG. 3 is a view of the compression plate 18 shown in FIG. 1 as viewed from above. As shown in the drawing, the compression plate 18 holds the biopsy in a state where the breast M is fixed by the imaging table 14 and the compression plate 18. An opening 5 having a size of about 10 × 10 cm square is provided.

The biopsis unit 2 is mechanically and electrically connected to the mammography display system 1 by inserting the base portion of the biopsy unit 2 into the opening of the support portion 20 of the compression plate 18 and attaching the lower end of the base portion to the arm portion 13. To be connected.

The biopsy unit 2 includes a biopsy needle 21 that is punctured into the breast M. The biopsy needle unit 22 is configured to be detachable, a needle support portion 23 that supports the biopsy needle unit 22, and a needle support portion 23. A moving mechanism 24 is provided that moves the biopsy needle unit 22 in the X, Y, and Z directions shown in FIGS. 1 to 3 by moving along the rail or by moving the needle support portion 23 in and out. The position of the tip of the biopsy needle 21 of the biopsy needle unit 22 is recognized and controlled as position coordinates (x, y, z) in a three-dimensional space by a needle position controller 35 provided in the moving mechanism 24. 1 is the X direction, the paper vertical direction in FIG. 2 is the Y direction, and the paper vertical direction in FIG. 3 is the Z direction.

The computer 8 includes a central processing unit (CPU) and a storage device such as a semiconductor memory, a hard disk, and an SSD, and the control unit 8a, the radiation image storage unit 8b, and the selection as shown in FIG. An instruction receiving unit 8c is configured.

The control unit 8a outputs predetermined control signals to the various controllers 31 to 35 to control the entire system. A specific control method will be described in detail later.

The radiation image storage unit 8b stores a radiation image signal for each imaging angle acquired by the radiation image detector 15 in advance.

The selection instruction receiving unit 8c receives a selection instruction signal for displaying a breast observation stereo image (stereoscopic image) or a position designation stereo image for designating a predetermined position in the breast. It receives from the input part 7 mentioned later, and outputs that to the control part 8a.

Here, the stereo image for breast observation is a stereo image mainly used for observing the entire breast or calcification or tumor existing in the breast, and appropriate stereoscopic vision is possible over the entire stereo image. The image is taken at such a convergence angle.

On the other hand, a stereo image for position designation is a stereo image mainly used for designating the position of calcifications or tumors existing in the breast. Breast observation is performed in order to increase the position designation accuracy in the depth direction. It is taken at a larger angle of convergence than the stereo image for use.

The input unit 7 is composed of a pointing device such as a keyboard and a mouse, for example, and selects whether to display a breast observation stereo image or a position designation stereo image as described above. And at the time of displaying a stereo image for position designation, a predetermined position in the stereo image can be designated. The input unit 7 receives an input of shooting conditions and an operation instruction by the photographer.

The monitor 9 displays a stereo image using the two radiographic image signals output from the computer 8. The configuration of the monitor 9 is, for example, a radiographic image based on the two radiographic image signals using two screens. By using a half mirror or polarizing glass, one radiological image is incident on the right eye of the observer, and the other radiological image is incident on the left eye of the observer, thereby displaying a stereo image. A configuration can be employed. Or, for example, two radiographic images may be displayed in a superimposed manner while being shifted by a predetermined amount of parallax, and this may be configured to generate a stereo image by observing with a polarizing glass, or a parallax barrier method and a lenticular method As described above, a stereo image may be generated by displaying two radiation images on a stereoscopically viewable 3D liquid crystal.

Next, the operation of the breast image radiographing display system of this embodiment will be described with reference to the flowchart shown in FIG.

First, the breast M is installed on the imaging table 14, and the breast M is compressed with a predetermined pressure by the compression plate 18 (S10).

Next, in the input unit 7, various photographing conditions are input by the photographer, and a stereo image for breast observation is displayed, or for position designation for designating a predetermined position in the breast. An instruction to select whether to display a stereo image is received.

When there is a selection instruction to display an observation stereo image at the input unit 7, the observation stereo image is photographed (S12). Specifically, when there is a selection instruction to display an observation stereo image, the selection instruction signal is received by the selection instruction receiving unit 8c, and a message to that effect is output to the control unit 8a. Then, in response to the selection instruction signal for displaying the observation stereo image, the control unit 8a reads the first convergence angle θ1 for photographing the observation stereo image, and the read first convergence Information on the angle θ1 is output to the arm controller 31. In the present embodiment, it is assumed that θ1 = ± 2 ° is stored in advance as information of the first convergence angle θ1. In the present embodiment, the first convergence angle is θ1 = ± 2 °. However, the present invention is not limited to this, and any angle may be used as long as it is ± 2 ° or more and ± 5 ° or less.

Then, the arm controller 31 receives the information of the first convergence angle θ1 output from the control unit 8a, and the arm controller 31 is based on the information of the first convergence angle θ1 as shown in FIG. Then, a control signal is output so that the arm unit 13 rotates + θ1 ° with respect to a direction perpendicular to the imaging table 14. That is, in the present embodiment, a control signal is output so that the arm unit 13 is rotated + 2 ° with respect to a direction perpendicular to the imaging table 14.

Then, according to the control signal output from the arm controller 31, the arm portion 13 rotates by + 2 °. Subsequently, the control unit 8a outputs a control signal to the radiation source controller 32 and the detector controller 33 so as to perform radiation irradiation and readout of the radiation image signal. In response to this control signal, radiation is emitted from the radiation source 17, a radiation image obtained by photographing the breast from the + 2 ° direction is detected by the radiation image detector 15, and a radiation image signal is read by the detector controller 33. After predetermined signal processing is performed on the radiographic image signal, the radiographic image signal is stored in the radiographic image storage unit 8 b of the computer 8.

Next, as shown in FIG. 2, the arm controller 31 once returns the arm portion to the initial position, and then outputs a control signal so as to rotate by −θ1 ° with respect to the direction perpendicular to the imaging table 14. That is, in the present embodiment, a control signal is output so that the arm unit 13 is rotated by −2 ° with respect to a direction perpendicular to the imaging table 14.

Then, according to the control signal output from the arm controller 31, the arm portion 13 rotates by -2 °. Subsequently, the control unit 8a outputs a control signal to the radiation source controller 32 and the detector controller 33 so as to perform radiation irradiation and radiation image reading. In response to this control signal, radiation is emitted from the radiation source 17, a radiation image obtained by imaging the breast from the −2 ° direction is detected by the radiation image detector 15, and a radiation image signal is read by the detector controller 33. After predetermined signal processing is performed, it is stored in the radiation image storage unit 8b of the computer 8 (S14).

The two radiographic image signals stored in the radiographic image storage unit 8 b of the computer 8 are read from the radiographic image storage unit 8 b, subjected to predetermined signal processing, and output to the monitor 9. A stereo image for breast observation is displayed (S16).

Next, when a stereo image for breast observation is displayed as described above, the observer discovers calcification or a tumor in the breast, and subsequently wants to collect those tissues by the biopsy unit 2. In the input unit 7, a selection instruction is performed so as to display a stereo image for position designation for designating the position of a target such as calcification or mass.

If there is a selection instruction to display a stereo image for position designation in the input unit 7, a stereo image for position designation is photographed (S18, YES). Specifically, when there is a selection instruction to display a stereo image for position designation, the selection instruction signal is received by the selection instruction receiving unit 8c, and that effect is output to the control unit 8a.

Then, in response to the selection instruction signal for displaying the position designation stereo image, the control unit 8a reads out the second convergence angle θ2 for photographing the position designation stereo image that has been set in advance, and the read second angle. Is output to the arm controller 31. In the present embodiment, it is assumed that θ2 = ± 5 °, which is larger than the first convergence angle θ1, is stored in advance as information on the second convergence angle θ2. In the present embodiment, the second convergence angle is θ2 = ± 5 °. However, the present invention is not limited to this, and any angle may be used as long as it is ± 5 ° or more and ± 15 ° or less.

Then, the arm controller 31 receives the information on the second convergence angle θ2 output from the control unit 8a, and the arm controller 31 detects that the arm unit 13 is based on the information on the second convergence angle θ2. A control signal is output so as to rotate + θ2 ° with respect to a direction perpendicular to 14. That is, in the present embodiment, a control signal is output so that the arm unit 13 rotates + 5 ° with respect to a direction perpendicular to the imaging table 14.

Then, according to the control signal output from the arm controller 31, the arm portion 13 rotates by + 5 °. Subsequently, the control unit 8a outputs a control signal to the radiation source controller 32 and the detector controller 33 so as to perform radiation irradiation and readout of the radiation image signal. In response to this control signal, radiation is emitted from the radiation source 17, a radiation image obtained by photographing the breast from the + 5 ° direction is detected by the radiation image detector 15, and a radiation image signal is read by the detector controller 33. After the signal processing is performed, it is stored in the radiation image storage unit 8b of the computer 8.

Next, the arm controller 31 once returns the arm portion to the initial position, and then outputs a control signal so as to rotate by −θ2 ° with respect to the direction perpendicular to the imaging table 14. That is, in the present embodiment, the control signal is output so that the arm unit 13 rotates by −5 ° with respect to the direction perpendicular to the imaging table 14.

Then, the arm 13 rotates by -5 ° in accordance with the control signal output from the arm controller 31. Subsequently, the control unit 8a outputs a control signal to the radiation source controller 32 and the detector controller 33 so as to perform radiation irradiation and readout of the radiation image signal. In response to this control signal, radiation is emitted from the radiation source 17, a radiation image obtained by photographing the breast from the −5 ° direction is detected by the radiation image detector 15, and a radiation image signal is read by the detector controller 33. After the predetermined signal processing, it is stored in the radiation image storage unit 8b of the computer 8 (S20).

The two radiographic image signals stored in the radiographic image storage unit 8 b of the computer 8 are read from the radiographic image storage unit 8 b, subjected to predetermined signal processing, and output to the monitor 9. A stereo image for position designation is displayed (S22).

Next, on the stereo image for position designation displayed on the monitor 9, a target such as calcification or mass is designated by the observer (S24). The designation of the target may be performed by a pointing device such as a mouse in the input unit 7, for example. Specifically, for example, an indicator for a three-dimensional cursor is displayed in each of two radiographic images constituting a stereo image for position designation, and a three-dimensional cursor that is a stereoscopic image composed of the two indicators is displayed. The target may be specified by moving the input unit 7. In addition, the position of the index in each radiation image is assumed to have a coordinate position set according to the shooting direction when a stereo image for position specification is shot.

Then, the position information (x, y, z) of the target designated by the observer is acquired by the control unit 8a, and the control unit 8a outputs the position information to the needle position controller 35 of the biopsy unit 2.

In this state, when a predetermined operation button is pressed in the input unit 7, a control signal for moving the biopsy needle 21 is output from the control unit 8a to the needle position controller 35. The needle position controller 35 is arranged so that the tip of the biopsy needle 21 is arranged at the position indicated by the coordinates (x, y, z + α) based on the value of the position information (x, y, z) input previously. The biopsy needle 21 is moved. Here, α is set to a sufficiently large value so that the biopsy needle 21 does not pierce the breast. Thereby, the biopsy needle 21 is set above the target.

Thereafter, when a predetermined operation for instructing puncture of the biopsy needle 21 is performed by the observer in the input unit 7, the tip of the biopsy needle 21 is coordinated (x, x) under the control of the control unit 8a and the needle position controller 35. The biopsy needle 21 is moved so as to be arranged at the position indicated by y, z), the breast is punctured by the biopsy needle 21, and the tissue around the target is collected (S26).

Then, after the tissue around the target has been collected as described above, if the observer wants to display a stereo image for breast observation in order to confirm whether the tissue has been collected properly, A selection instruction is given in the input unit 7 so as to display a stereo image for breast observation again by the person (YES in S28).

Then, in the same manner as described above, the stereo image is taken again with the first convergence angle θ1, and the stereo image for breast observation is displayed on the monitor 9 again.

On the other hand, when a selection instruction is given to display a stereo image for position designation in S12 shown in FIG. 5, a stereo image is captured at the second convergence angle θ2 in the same manner as described above. A stereo image for position designation is displayed before displaying the stereo image for breast observation. The processing after the stereo image for position designation is displayed is performed in the same manner as described above.

In the description of the above embodiment, in order to capture a stereo image for breast observation, a radiographic image is captured from two imaging directions forming the first convergence angle θ1, and a stereo for position designation is used. In order to take an image, radiographic images are taken from two imaging directions forming the second convergence angle θ2, that is, radiographic images are taken from all four imaging directions. However, the present invention is not limited to this. For example, a radiographic image is taken from one imaging direction in a state where the arm unit 13 is installed in a direction perpendicular to the imaging table 14, and the above vertical direction is used. By capturing radiographic images from two imaging directions rotated by ± 5 °, radiographic image signals for all three imaging directions are stored in advance in the radiographic image storage unit 8b. It may be.

When displaying a stereo image for breast observation, a radiographic image signal in the + 5 ° imaging direction and a radiographic image signal in the −5 ° imaging direction are read from the radiographic image storage unit 8b and displayed on the monitor 9. When displaying a stereo image for position designation, a radiographic image signal of −5 ° imaging direction and a radiographic image signal of 0 ° imaging direction, or a radiographic image signal of + 5 ° imaging direction and 0 ° imaging. You may make it display the radiographic image signal of a direction. In this way, a stereo image with a first convergence angle θ1 = ± 5 ° can be displayed as a stereo image for breast observation, and a second convergence angle θ2 = as a stereo image for position designation. A stereo image of ± 2.5 ° can be displayed.

Note that the three imaging directions are not limited to the above-described imaging directions, and other imaging directions may be employed. In this case, the radiographic image signals in the two adjacent imaging directions are used for breast observation. A stereo image may be displayed and a stereo image for position designation may be displayed using radiographic image signals in two imaging directions at both ends.

In the above description, one embodiment of the radiographic image capturing and displaying system of the present invention is applied to a stereo breast image capturing and displaying system. However, the subject of the present invention is not limited to the breast. The present invention can also be applied to a radiographic imaging display system that captures images such as.

Claims

Radiation for acquiring a radiographic image for each imaging direction detected by a radiographic image detector by irradiating a subject from different imaging directions and displaying a stereoscopic image using the acquired radiographic image for each imaging direction In the image photographing display method, the radiographic images in the two photographing directions forming the first convergence angle are acquired and displayed as constituting a stereoscopic image for observing the subject, and displayed.
The radiographic images in the two imaging directions that form a second convergence angle larger than the first convergence angle are used to form a position designation stereoscopic image for designating a predetermined position in the subject. A radiographic imaging display method characterized by acquiring and displaying.
A radiation irradiating unit that irradiates a subject with radiation from different imaging directions, a radiation image detector that detects radiation irradiated by the radiation irradiating unit and transmitted through the subject, and the imaging detected by the radiation image detector In a radiographic imaging display system including a display device that acquires a radiographic image for each direction and displays a stereoscopic image using the acquired radiographic image for each imaging direction,
The display device acquires and displays the radiographic images in the two imaging directions forming the first convergence angle as constituting a stereoscopic image for observing the subject, and designates a predetermined position in the subject. The radiographic images in the two imaging directions forming the second convergence angle larger than the first convergence angle are acquired and displayed as constituting a stereoscopic image for position designation for performing A radiographic imaging display system.
The radiographic image capturing according to claim 2, further comprising a selection instruction receiving unit that receives a selection instruction to display a stereoscopic image for observing the subject or a stereoscopic image for specifying the position. Display system.
The radiation irradiating unit irradiates the subject with the radiation from the three imaging directions;
A radiation image storage unit that stores in advance a radiation image detected by the radiation image detector by irradiating the subject with radiation from the three imaging directions;
The display device displays the stereoscopic image for observation using the radiographic images in the two imaging directions adjacent to each other among the radiographic images in the three imaging directions stored in the radiographic image storage unit. 4. The radiographic image radiographing display system according to claim 2, wherein the position designation stereoscopic image is displayed using radiographic images in two radiographing directions.
The radiographic image radiographing display system according to claim 4, wherein the middle radiographing direction of the three radiographing directions is a direction perpendicular to the radiation irradiation surface of the radiographic image detector.
The radiographic image capturing and displaying system according to any one of claims 2 to 5, wherein the first convergence angle is within a range of the second convergence angle.
The display device further comprises a position designation receiving unit that receives designation of a predetermined position in the position designation stereoscopic image when the position designation stereoscopic image is displayed. The radiographic imaging display system according to any one of 2 to 6.
While supporting the biopsy needle, a movable needle support part,
A needle position control unit that controls the position of the tip of the biopsy needle by moving the needle support unit;
The radiographic imaging display system according to claim 7, wherein the needle position control unit moves the needle support unit based on the predetermined position received by the position designation receiving unit.
The radiographic image capturing and displaying system according to any one of claims 2 to 8, wherein the second convergence angle is not less than 10 ° and not more than 30 °.
10. The radiographic imaging display system according to claim 2, wherein the first convergence angle is 4 ° or more and 10 ° or less.