JPH10165403A - Biopsy instrument for mammography - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a biopsy instrument for mammography which allows a patient and an operator to perform a biopsy in a natural position in that they need not pause an uncomfortable position and can reduce physical burden. SOLUTION: In a biopsy instrument for mammography which is used with a tomography instrument and holds breasts of an examined body for a tomography and a biofunction test, a lower pressure plate 11 whose height from a bed top plate 3 is adjustable and the lower pressure plate 11 is provided in approximately parallel to the bed top plate 3, and a higher pressure plate 13 whose height is adjustable, the higher pressure plate 13 is provided above the lower pressure plate 11 and is provided in approximately parallel to the bed top plate 3, and the lower pressure plate 11 and the higher pressure plate 13 hold breasts of an examined body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mammography device for fixing a breast of a subject, identifying a region of interest on a tomographic image, and guiding a biopsy needle (also called a puncture needle) for sampling a part of tissue. It relates to a biopsy device.

[0002]

2. Description of the Related Art In recent years, the proportion of cancers as a cause of death has increased with changes in lifestyles, of which breast cancer will be
It is the momentum that surpasses stomach cancer and ranks first.

For breast cancer diagnosis, palpation, mammography using an X-ray diagnostic apparatus, image diagnosis using an ultrasonic diagnostic apparatus, an MRI apparatus, and the like are performed. Among the image diagnostic apparatuses, it is reported that the MRI apparatus has high sensitivity to breast cancer, but the specificity indicating how correctly a normal person is regarded as a negative is not necessarily high. Even in the diagnosis based on modality, a definitive diagnosis is required by a biopsy in which a part of a tissue is collected and cells are directly examined.

Recently, several biopsies have been reported in which a biopsy needle is positioned by an MRI apparatus which is a highly sensitive modality.

[0005] Many of these biopsies include, for example,
As shown in FIG. 12, the patient is prone, and the breast is sandwiched and fixed between the left and right parallel plates with perforated holes (hereinafter referred to as the prone position method) (for example, Reference 1; "Prototype"). Breast Coil for MR-Guided Needle Lo
calization "Journal of Computer Assisited Tomograp
hy Vol.18, No.6, pp876-881, Nov. / Dec. 1994 Raven Pres
s Ltd., New York).

According to FIG. 12, an auxiliary bed 905 is set on a bed top 903 and a window 90 provided in the auxiliary bed 905 is provided.
7. The breast on the affected side is hung from 7 and the left and right compression plates 90
9 and 911 press and fix from left and right. As is clear from FIG. 12, in this method, a part of the breast corresponding to the thickness t of the auxiliary bed 905 cannot be accessed. This problem is not solved even if the original bed is provided with a window similar to the auxiliary bed without providing the auxiliary bed.

As a method of alleviating the burden on a patient in the prone system, one of the right and left shoulders is prone so as to be attached to a bed, and the breast is suppressed obliquely from above (hereinafter, referred to as an oblique prone position system). (Eg, reference 2; "A new breast biopsy and localizer devic").
e deesigned for MR guided interventional procedure
s, ISMRM abstract, pp1585, 1995, Reference 3; "MR-Guid
ed Biopsy of the Breast After Lumpectmy and Radiat
ion Therapy Using Tow Methods of Immobilization in
the Lateral Decubitus Position ", Journal of Magnet
ic Resonance Imaging, Vol.5, No.5, pp525-528, Sep./Oc
t.1995).

[0008]

However, the conventional prone position method has a problem in that the patient is forced to exert an unreasonable posture for a long time, and the patient suffers a great deal of pain. In addition, since the body position of the patient is unnatural, there is a problem that the body movement tends to cause a position shift before and after the position identification of the region of interest, and there is a possibility that a sample is collected from an incorrect position.

In addition, there is a problem that the operator cannot perform a biopsy unless the operator lowers his hips and takes an unnatural posture in order to access the breast below the patient's body.

[0010] Furthermore, since the chest is curved in the left-right direction, there is a problem that the breast, especially the outside, cannot be pinched deeply.

In addition, there is a problem in that a portion corresponding to the thickness t of the top plate of the auxiliary bed supporting the patient cannot be accessed, and biopsy of the root portion of the breast cannot be performed.

In the conventional oblique prone position method, the posture of the patient and the operator is easier than in the prone position method, but the breast is obliquely pressed only by the upper plate, so that the patient position is lower. It is still unnatural and has a problem that the degree of freedom is small depending on the position and size of the breast.

Further, in the oblique prone position system, the X-axis or Y-axis of the holding plate is used with respect to the gantry coordinate system of the diagnostic imaging apparatus.
Since the axes are non-parallel, coordinate calculation for identifying a target position to be punctured becomes complicated, and there is a problem that a long time is required for position identification.

In view of the above problems, a main object of the present invention is to reduce the physical burden on a patient and an operator without imposing an unnatural posture, and to perform a biopsy in a natural posture. The purpose of the present invention is to provide a biopsy device.

Another object of the present invention is to provide a biopsy device for a mammy which can easily identify a target position to be punctured.

Another object of the present invention is to provide a mammary biopsy device which can sandwich the root portion of the breast more deeply.

It is another object of the present invention to provide a biopsy device for a mammature that facilitates biopsy of the armpit, which is a common site of breast cancer.

[0018]

In order to achieve the above object, the present invention has the following arrangement. That is, the invention according to claim 1 is used together with a tomographic imaging apparatus, and in a mammary biopsy apparatus that holds a breast of the subject for tomographic imaging and biopsy, a couch top on which the subject is placed A first compression plate provided so as to be adjustable in height from the couch top and substantially parallel to the couch top; and a height adjustable above the first compression plate and couch top. And a second compression plate provided substantially in parallel to the subject, and the gist of the present invention is to hold the subject's breast by sandwiching it between the first and second compression plates.

According to a second aspect of the present invention, in the biopsy device for a mammy according to the first aspect, at least one of the first compression plate and the second compression plate has a biopsy needle perpendicular to the plate surface. The gist is that a plurality of holes that can be inserted are provided.

According to a third aspect of the present invention, in the mammy biopsy device according to the first aspect, at least one of the first compression plate and the second compression plate can be inserted with a first biopsy needle. The gist is that a second window into which the third plate provided with the window is fitted is provided.

According to a fourth aspect of the present invention, in the biopsy device for a mammy according to the first aspect, at least one of the first compression plate and the second compression plate is provided with a lattice through which a biopsy needle can be inserted. The gist is that a window was provided.

According to a fifth aspect of the present invention, in the biopsy apparatus for a mammy according to any one of the first to fourth aspects, the tomographic imaging apparatus is an MRI apparatus.

According to a sixth aspect of the present invention, in the biopsy device for a mammy according to the fifth aspect, at least one of the first compression plate and the second compression plate has an MRI RF surface on or inside thereof. The gist is that a coil is provided.

According to a seventh aspect of the present invention, there is provided a mammography biopsy apparatus according to any one of the first to fourth aspects, wherein the tomographic imaging apparatus is an X-ray CT apparatus, an ultrasonic diagnostic apparatus, or a gamma camera. The gist of the present invention is that the device is one of a device and an emission CT device.

According to an eighth aspect of the present invention, in the biopsy device for a mammy according to any one of the first to seventh aspects, at least one of the first compression plate and the second compression plate is provided. The gist is that a marker for indicating the positional relationship between the plate and the region of interest on the tomographic image is provided or that the marker can be set.

[0026]

Embodiments of the present invention will now be described in detail with reference to the drawings. [First Embodiment] FIG. 1 is a perspective view showing a first embodiment of a mammary biopsy device according to the present invention.
The coordinate axes are assumed to be the same as the gantry coordinate system, with the body axis direction of the patient being the Z axis, the vertically upward direction being the Y axis, and the third axis being orthogonal to these being the X axis.

In FIG. 1, a biopsy device 1 for a mammoth comprises a base plate 5 which forms the base of the device 1 and is fixed to a bed top 3, and four shafts 9 erected vertically from the base plate 5. , A lower compression plate 11 and an upper compression plate 13 provided slidably with respect to the shaft 9 as main components.

The substantially rectangular base plate 5 has its four corners fixed to the couch top 3 with fixing screws 7. The couch top 3 has mounting screw holes (not shown) on both the left side and the right side of the couch top so that the couch top 3 can be applied to both the left side down position and the right side down position. Is provided.

The lower compression plate 11 and the upper compression plate 13 include
Two tab portions 15 are provided at two ends in each of the ± Z directions. The tab portion 15 is provided with a hole 15a, through which the shaft 9 is inserted. Further, each shaft 9 is threaded, and the lower compression plate 11 and the upper compression plate 13 are connected to the bed top plate 3 by a nut 17.
And at a desired height from the bed surface of the bed.

An RF coil 19 (not shown) for an MRI apparatus is provided slightly inside the outer periphery of each of the lower compression plate 11 and the upper compression plate 13. RF coil 1
9 may be provided on the surface of each of the lower compression plate 11 and the upper compression plate 13, or may be embedded therein. Further, the surfaces of the lower compression plate 11 and the upper compression plate 13 facing each other may be covered with a material having a large friction coefficient such as rubber.

The lower compression plate 11 has an end on the -Z side,
A preamplifier unit 21 for amplifying a signal received by the F coil 19 and sending the amplified signal to the MRI apparatus is provided.
The device is connected by a cable 23. Further, the RF coil 19 of the upper compression plate 13 and the preamplifier 21 are connected by a cable 25.

The lower compression plate 11 and the upper compression plate 13
Immediately inside the RF coil, marker holes 27 are arranged in a U-shape. Further, puncturing holes 29 are arranged in a matrix inside.

The marker holes 27 are provided at intervals of, for example, 10 mm, and are gadolinium-diethylenetriaminepentaacetic acid (hereinafter abbreviated as Gd-DTPA) as an MRI contrast agent.
A marker tube 31 in which an aqueous solution or the like is sealed can be inserted.

The puncturing hole 29 is formed, for example, by five in the X and Y directions.
In addition to being provided in a matrix at mm intervals, a hole is also provided at the center point of this 5 mm square lattice, and its diameter is slightly larger than the biopsy needle used, for example, 2 mm.

FIG. 2 is a three-view drawing illustrating an example of the use state of the biopsy device 1 for a mammoth, and shows a case where the left breast is fixed. As shown in the figure, the basic posture of the patient is a lateral position, and the patient is lying on the bed in a lateral position with the breast to be biopsied on the affected side facing upward. Then, the upper breast is sandwiched between two compression boards.

As described above, the standard type of breast biopsy is to insert a needle from the outside to the inside of the breast, but if the affected part is near the inside of the breast, it can be pierced from the inside. Alternatively, the breast on the affected side can be placed in a downward position, and the lower breast can be sandwiched between two compression plates (FIG. 5).

Next, the procedure of using the biopsy device for mammography according to the present invention will be described with reference to the flowchart of FIG.

In FIG. 3, the patient first lies on the couch top in such a position that the breast on the affected side is up (step S101). Next, the breast is fixed (step S10).
3). When fixing the breast, first, the lower compression plate is set at an appropriate height, and the breast is pinched from the root and placed on the lower compression plate while being pulled. Next, it is pressed and fixed with an upper pressing plate. In some cases, the breast may be pulled and then clamped on the upper compression plate. When the upper compression plate is fixed so as to be parallel to the XZ plane, subsequent target positioning becomes easy. If unavoidable, the upper compression plate may be angled to some extent.

The lower arm of the patient may be put on an arm pillow as shown in FIG. 2 or extended in the direction of the head, and another pillow may be used. The patient's upper arm is placed on the arm rest above and forward so as not to interfere with the biopsy. The posture as shown in FIG. 2 is more natural than the conventional prone position and oblique prone position, and it is extremely easy to maintain this posture for a long time.

In the biopsy of the breast, the most important point is how to fix the soft breast easily. If this is clear, the position of the affected area is determined, and a needle is inserted.
Excising tissue is no different from conventional biopsy of tissues and organs other than the breast and is outside the scope of the present invention.

However, when fixing the affected part, the compression plate on the side where the needle is inserted is parallel to at least two axes of the gantry coordinate system (that is, parallel to any of the XY plane, YZ plane, and ZX plane). It is desirable.

This is because it is necessary to perform scanning so that the plane parallel to the needle insertion direction and the plane perpendicular to the needle insertion direction are slice planes, and the slice planes are XY plane, YZ plane, and ZX plane.
If it is parallel to any of the planes, there is no need to scan additional positioning slices to determine a plane parallel or perpendicular to the compression plate and perform coordinate system transformation calculations. And even if it slices directly, the said request | requirement will be satisfy | filled, and the coordinate position and insertion distance on the plane parallel to the compression board surface for inserting a needle | hook into a target more quickly will be able to be measured.

When the fixation of the breast is completed, the position of the target is identified (step S105). The position of the target is identified by the MRI imaging step (S10).
7), a step of identifying the position of the insertion hole of the insertion compression plate (S1)
09), and 3 of the insertion depth identification step (S111)
Consists of steps.

In order to identify the position of breast cancer by MRI, Gd-DTPA imaging is performed, and
At the timing emphasized by 1, the breast is scanned as a multi-slice or 3D volume by a pulse sequence of T1W to identify a suspicious portion (S10).
7).

When it is difficult to discriminate between fat and a contrast-enhanced part,
Discrimination becomes easy when a fat suppression pulse sequence is used together.

The target needs to be identified as three-dimensional coordinates in order to select the position of the puncturing hole of the compression plate and to measure the insertion depth. In order to select the position of the puncture hole of the compression plate, a marker must be displayed on the slice plane that is parallel to the compression plate and passes through the target, and the position of the hole to be inserted is identified based on this marker. (Step S109, see FIG. 6).

Next, the depth to be inserted is measured by measuring the depth from the surface of the breast to the target on the slice plane perpendicular to the slice plane and passing through the target, and the compression plate on the side to be inserted into this value is measured. Is added to the insertion depth (step S111, see FIG. 7).

The biopsy needle is inserted from the puncture hole determined in this manner by the insertion depth (step S113). For confirmation, the slice plane including the insertion line is again inserted with the needle inserted. Scan (step S115) to check whether the tip of the needle has reached the target (step S11).
7) After being OK (step S119), suction is performed for tissue extraction (step S121).

If it is determined in step S119 that the stylus tip is off the center of the target, the process returns to step S105 for identifying the target position. When the tissue extraction is completed, the fixation of the breast is released (step S123), and the process ends.

Next, a modification of the method for identifying the marker and the target position will be described. In the first embodiment of FIG. 1, the marker tube is inserted from the upper compression plate to the lower compression plate, so that the marker is captured even when the space between the two compression plates is sliced on any slice plane parallel to the compression plate.
It is guaranteed that the marker will appear on the slice surface including the affected area.

However, setting a marker for each biopsy requires extra examination time, and when a large breast is sandwiched, the marker may become an obstacle. Therefore, as shown in FIG. 8A, there is a method in which the marker is embedded in one or both of the upper and lower compression plates, and the marker is not provided between the compression plates.

In this case, however, the slice surface S1 of the compression plate (for example, the upper compression plate 13) in which the marker is embedded and the slice surface Sk including the affected part are shown in FIG.
As shown in (1), an image (S1 + Sk) in which both the marker and the affected part are captured is created by combining by a method such as addition.
The insertion position is identified based on this image.

[Second Embodiment] Next, a second embodiment of the mammy biopsy device according to the present invention will be described.
In the first embodiment, a plate having a hole for puncturing is used as the upper compression plate, but an embodiment using a three-dimensional pointer instead of this is shown.

FIG. 9A is a perspective view showing a configuration of a biopsy device in which a three-dimensional pointer is mounted on an upper compression plate. In FIG. 9A, a robot arm 103 is provided on an upper compression plate 101.

The robot arm 103 includes the upper compression plate 10
1, an A-arm 107 rotatably supported in the ZX plane by a first joint 113 on the vertical post 105, an A-arm 107 and a second joint 11
B arm 10 rotatably connected in the ZX plane by 5
9 and a puncture adapter 111 supported at the tip of the B-arm 109 so as to be movable up and down (Y direction).

The upper compression plate 101 is provided with a large window, and is provided with screws 123 for attaching the holding claws 125 at positions facing four corners of the window. A marker 121 is embedded at a position facing the center of each side of the window.

A transparent acrylic plate 131 shown in FIG. 9B is fitted into the window, and is held down by holding claws 125 to be integrated with the upper compression plate 101. Acrylic plate 131
Are prepared by opening small windows 133 at various positions, and those having small windows 133 opened near the affected part are selected and used.

If the approximate position of the affected part is unknown, a transparent acrylic plate without small windows is inserted instead.
After scanning by MRI or the like to identify the position of the affected part, the affected part is replaced with an acrylic plate with small windows based on this position.

Instead of an acrylic plate with small windows, FIG.
The mesh plate 141 as shown in FIG.
If it fits in one window, it is possible to achieve both compression and fixing of the breast and stab at an arbitrary position with a very small error.

The robot arm 103 is controlled by a control device (not shown) so that the tip of a biopsy needle (not shown) attached to the puncture adapter 111 reaches a target coordinate position. The coordinate system indicating the tip position of the biopsy needle is the upper compression plate 1 identified by MRI or the like.
01 coincides with the coordinate system identified from the marker 121 provided in the image data.

For example, the coordinate system of the compression plate is defined as a line connecting the two markers in the X direction as the X axis, a line connecting the two markers in the Z direction as the Z axis, and the intersection thereof as the coordinate origin (0, 0). ,
0). If the center position of the affected part is identified by MRI or the like in this coordinate system and the coordinates are (Xt, Yt, Zt), if the tip of the biopsy needle is guided to this coordinate position, it will reach the center of the affected part, that is, the target. Can be.

The robot may be automatically controlled so as to reach the input coordinate position, or may be provided with only a position detector for numerically monitoring the coordinate position of the tip of the biopsy needle in real time. You may.

The form of the robot arm as a three-dimensional pointer is not particularly limited. FIG. 9 shows a scalar robot type, but is not limited thereto.
For example, a vertical post rotatable around an axis parallel to the Y axis and a plurality of joints rotatable in a plane perpendicular to the upper compression plate from the vertical post are connected to the upper compression plate. An arm can also be used.

[Third Embodiment] Next, a third embodiment of the mammary biopsy device according to the present invention will be described.
In the first and second embodiments, both the upper compression plate and the lower compression plate are parallel to the coordinate system of the couch top and the gantry. However, when a large breast is sandwiched, or when an axillary portion is sandwiched. A third embodiment will be described as an example in which the shaft on the breast side may be in the way and the compression plate can be rotated slightly around the Z axis in order to more smoothly fix the breast. .

FIG. 10 is a perspective view showing a third embodiment of a mammary biopsy device according to the present invention. In the figure, the biopsy device 201 for mammoth is
A base plate 205 which forms the base of the base plate 01 and is fixed to a bed top (not shown);
5, two main guide plates 231 erected vertically from the base plate 205, two sub guide plates 233 erected vertically from the base plate 205, a main guide plate 231 and a sub guide plate 233.
The lower compression plate 211 and the upper compression plate 213 provided slidably with respect to the main component are main components.

The substantially rectangular base plate 205 has its four corners fixed to the bed top by fixing screws 207.

The main guide plate 231 has a long hole 231a in the longitudinal direction. The sub guide plate 233 has a waveform 23 in its longitudinal direction on a surface facing the other sub guide plate.
3a are formed.

The lower compression plate 211 and the upper compression plate 213 are each provided with a cylindrical hole whose axis is oriented in the Z direction at a position facing the sub guide plate 233 at the end in the ± Z direction. Springs 219 and contacts 221 are accommodated in the holes, respectively. The spring 219 is a compressed coil spring, and urges the cylindrical contact 221 having a round top to push it out of the hole.
For this reason, the contact 221 has the waveform 23 of the sub guide plate 233.
The ends of the lower compression plate 211 and the upper compression plate 213 on the −X direction side in the ± Z direction are supported at positions where they fit into any valleys of 3a.

The lower compression plate 211 and the upper compression plate 2
13, a screw 21 is provided at the center of each end in the ± Z direction.
5 are provided. This screw 215 has a long hole 231a
The nut 217 is inserted outside the main guide plate 231.
Is fixed by Since the screw 215 can be fixed at an arbitrary position in the long hole 231a, the lower compression plate 211 and the upper compression plate 213 can be fixed to a desired height and rotated slightly around the Z axis.

In the present embodiment, a method of embedding a marker in one or both of the upper and lower compression plates as shown in FIG. 8 is effective. In addition, the method of using the mammary biopsy device according to the present embodiment is the same as that described in the first embodiment, and thus details are omitted.

[Fourth Embodiment] Next, a fourth embodiment of the mammary biopsy device according to the present invention will be described.
As in the third embodiment, the fourth embodiment is an example in which the compression plate can be slightly rotated around the Z axis.

FIG. 11 is a perspective view showing a fourth embodiment of the mammary biopsy device according to the present invention. In the figure, the biopsy device 301 for mammoth is a vertical post 3 that is screwed into a screw hole provided in the bed top 303.
05, a joint 307 that supports the arm 311 and the arm 321 so as to be rotatable about a rotation axis parallel to the Z axis, joints 313 and 323 provided at the distal ends of the arms 311 and 321, respectively. Joints 313 and 32
Arms 315 and 325 extending substantially horizontally from 3
And an upper compression plate 317 and a lower compression plate 327 fixed to the distal ends of the arms 315 and 325, respectively.

The joints 307, 313, and 323 can be freely rotated and fixed, and once the breast is positioned, the breast is moved to the upper compression plate 317 and the lower compression plate 32.
7, when pressed and fixed, each corner joint 307, 31
3 and 323 are fixed, and the upper compression plate 317 and the lower compression plate 327 are fixed.

In this embodiment, a method of embedding a marker in one or both of the upper and lower compression plates as shown in FIG. 8 is effective. The method of using the mammary biopsy device according to the present embodiment is the same as that described in the first embodiment, and thus the details are omitted.

[0075]

As described above, according to the present invention, the first compression plate provided so as to be adjustable in height from the couch top and substantially parallel to the couch top, and the first compression plate A second adjustable height above the board and substantially parallel to the couch top;
The first and second breasts of the patient in lateral position using the compression plate
The present invention provides a biopsy device for a mammoth that can perform a biopsy in a natural posture by reducing the physical burden of the patient and the operator without forcing the patient and the operator to have an unnatural posture by sandwiching and holding the compression plate. Can be.

Further, according to the present invention, it is possible to provide a mammy biopsy device which can easily identify a target position to be punctured.

Further, according to the present invention, it is possible to provide a mammary biopsy device which can sandwich the root portion of the breast more deeply.

Further, according to the present invention, it is possible to provide a biopsy device for a mammoth in which biopsy can be easily performed on an armpit portion, which is a site where breast cancer is frequently caused.

[Brief description of the drawings]

FIG. 1 is a first view of a mammy biopsy device according to the present invention.
It is a perspective view which shows embodiment.

FIG. 2 is a three-view drawing showing a use state of the mammary biopsy device according to the present invention.

FIG. 3 is a flowchart showing a procedure for using the biopsy device for mammography according to the present invention.

FIG. 4 is a perspective plan view showing a method for fixing an axillary portion using a mammary biopsy device according to the present invention.

FIG. 5 is a view showing a method of fixing a lower part of the breast using a mammary biopsy device according to the present invention.

FIG. 6 is an MRI sagittal sectional view illustrating a method of identifying a hole position into which a biopsy needle is inserted.

FIG. 7 is a diagram illustrating a method of identifying a depth at which a biopsy needle is inserted.
It is a RI axial sectional view.

8A is a perspective view illustrating a modification of a marker (marker), and FIGS. 8B and 8C are diagrams illustrating a method of identifying a target position.

FIG. 9 is a perspective view showing a modification of the upper compression plate.

FIG. 10 is a perspective view showing a second embodiment of a mammary biopsy device according to the present invention.

FIG. 11 is a perspective view showing a third embodiment of a mammary biopsy device according to the present invention.

12A and 12B are a front view (a) and a side view (b) illustrating a conventional prone biopsy device for a mammoth.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Biopsy apparatus for mammo, 3 ... Couch top plate, 5 ... Base plate, 7 ... Fixing screw, 9 ... Shaft, 11 ... Lower compression plate, 13 ... Upper compression plate, 15 ... Part, 17 ... Fixing screw, 19 ... RF coil, 21 ... Preamplifier part, 2
3, 25: cable, 27: marker hole, 29: puncture hole, 31: marker (marker).

Claims (8)

[Claims] 1. A mammary biopsy device which is used together with a tomographic imaging apparatus and holds a breast of a subject for tomographic imaging and biopsy, comprising: a couch top on which a subject is placed; A first compression plate provided to be adjustable in height from and substantially parallel to the couch top; and a height adjustable above the first compression plate and provided substantially parallel to the couch top. And a second compression plate, wherein the breast of the subject is sandwiched and held between the first and second compression plates. 2. The apparatus according to claim 1, wherein at least one of the first compression plate and the second compression plate has a plurality of holes through which a biopsy needle can be inserted perpendicularly to the plate surface. A biopsy device for mammoth according to claim 1. 3. A second window in which a third plate provided with a first window through which a biopsy needle can be inserted is provided on at least one of the first compression plate and the second compression plate. The biopsy device for mammoth according to claim 1, characterized in that: 4. The biopsy for mammoth according to claim 1, wherein at least one of the first compression plate and the second compression plate has a window provided with a lattice through which a biopsy needle can be inserted. apparatus. 5. The mammography biopsy apparatus according to claim 1, wherein the tomographic imaging apparatus is an MRI apparatus. 6. At least one of the first compression plate and the second compression plate has an MRI R on its surface or inside.
The biopsy device for mammoth according to claim 5, wherein an F coil is provided. 7. An X-ray CT apparatus, wherein:
Ultrasound diagnostic equipment, gamma camera equipment, emission CT
The biopsy device for mammoth according to any one of claims 1 to 4, wherein the device is any one of devices. 8. At least one of the first compression plate and the second compression plate is provided with or provided with a marker for indicating a positional relationship between the plate and a region of interest on a tomographic image. The biopsy device for a mammy according to any one of claims 1 to 7, wherein the biopsy device can be set.