JP2007289326A - X-ray computed tomography apparatus and mamma fixing tool - Google Patents

X-ray computed tomography apparatus and mamma fixing tool Download PDF

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JP2007289326A
JP2007289326A JP2006119158A JP2006119158A JP2007289326A JP 2007289326 A JP2007289326 A JP 2007289326A JP 2006119158 A JP2006119158 A JP 2006119158A JP 2006119158 A JP2006119158 A JP 2006119158A JP 2007289326 A JP2007289326 A JP 2007289326A
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breast
subject
bed
mat member
radiation
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Makoto Nakano
真 中野
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Toshiba Corp
Canon Medical Systems Corp
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Toshiba Corp
Toshiba Medical Systems Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an X-ray computed tomography apparatus capable of carrying out tomography by pulling a mamma into recesses of a fixing tool and the mamma fixing tool suitable for the tomography. <P>SOLUTION: The X-ray CT apparatus comprises a bed on which a subject is placed, a tomography unit irradiating the subject placed on the bed with a radiation ray from a radiation ray source detecting the same by a radiation ray detector, and a mamma fixing tool secured on the bed and used for carrying out the tomography on the subject. The mamma fixing tool has a mat member on which the subject lays his body on his stomach and through which the radiation ray can transmit, a pair of recesses formed in parts where the chest portions of the mat member are placed and into which the mamma of the patient can be inserted, and suction holes for sucking air in the recesses with the mamma inserted into the recesses. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、***撮影に適したＸ線ＣＴ装置及び***撮影に使用する***固定具に関するものである。   The present invention relates to an X-ray CT apparatus suitable for mammography and a breast fixture used for mammography.

従来、***を撮影して***画像を得るため、マンモグラフィと呼ばれる撮影装置が使用されている。***撮影では、テーブルに載置した***にＸ線管からＸ線を照射して撮影を行うが、***全体を撮影するため圧迫板を用いて***をテーブルに押し付けるようにしている。   Conventionally, in order to obtain a breast image by photographing a breast, an imaging device called mammography is used. In mammography, imaging is performed by irradiating a breast placed on a table with X-rays from an X-ray tube. In order to capture the entire breast, the breast is pressed against the table using a compression plate.

特許文献１には、***撮影のためのレントゲン診察装置が記載されており、レントゲン管と対物テーブルの間に圧縮プレートを配置し、圧縮プレートをスライド自在にし、圧縮プレートで乳首端部までの胸部全体を均一に圧縮可能にした例が示されている。   Patent Document 1 describes an X-ray examination apparatus for mammography, in which a compression plate is disposed between an X-ray tube and an objective table, the compression plate is slidable, and the chest to the nipple end with the compression plate is disclosed. An example is shown in which the whole can be compressed uniformly.

しかしながら、マンモグラフィでの撮影では、***圧迫による患者の痛みは不可避である。また、マンモグラフィでは***を圧迫変形させて撮影を行うために、自然***での撮影ができないため、例えばがんの診断を行う場合は、がんの位置を正確に特定することができないという欠点がある。   However, in mammography, patient pain due to breast compression is inevitable. In addition, since mammography is performed by compressing and deforming the breast, it is not possible to capture images in a natural posture. For example, when diagnosing cancer, the position of cancer cannot be accurately identified. is there.

また従来放射線画像撮影装置としてＸ線ＣＴ装置が利用されているが、Ｘ線ＣＴ装置では、その適性の低さから乳がんの検査を目的とした検査はあまり行われていなかった。昨今、Ｘ線ＣＴ装置の高解像度化に伴って、乳がん検査等を目的とした***撮影の可能性が高まっているが、寝台に仰向けに寝た通常の撮影方法では、呼吸動、心拍動の影響を大きく受けて、乳がん検査に必要な分解能を得られないという不具合があった。
特開２００２−２１９１２４号公報 Conventionally, an X-ray CT apparatus has been used as a radiographic imaging apparatus. However, in the X-ray CT apparatus, examination for the purpose of examining breast cancer has not been performed so much because of its low suitability. In recent years, with the increase in resolution of X-ray CT apparatuses, the possibility of mammography for breast cancer testing and the like has increased. There was a problem that the resolution required for breast cancer testing could not be obtained due to the influence.
JP 2002-219124 A

従来、マンモグラフィでの撮影では、***圧迫による患者の痛みは不可避であり、***を圧迫変形させて撮影を行うために、自然***での撮影ができないという欠点がある。また、Ｘ線ＣＴ装置により***撮影を行う場合、寝台に仰向けに寝た撮影方法では、呼吸動、心拍動の影響を大きく受けて、乳がん検査に必要な分解能を得られないという不具合があった。   Conventionally, in mammography imaging, patient pain due to breast compression is inevitable, and imaging is performed with the breast deformed by compression, and thus there is a disadvantage that imaging in a natural posture is not possible. In addition, when mammography is performed with an X-ray CT apparatus, the imaging method in which the patient lies on his / her back on a bed is greatly affected by respiratory motion and heartbeat and cannot obtain the resolution necessary for breast cancer examination. .

本発明は、上記事情に鑑みて成されたもので、***を固定其の窪みに引き付けて断層撮影を行うことを可能とするＸ線ＣＴ装置、及び撮影に適した***固定具を提供することを目的とする。   The present invention has been made in view of the above circumstances, and provides an X-ray CT apparatus capable of performing tomography by attracting a breast to a fixed recess and a breast fixture suitable for imaging. With the goal.

本発明の請求項１記載のＸ線ＣＴ装置は、被検者を載置する寝台と、放射線源及び前記放射線源に対向配置された放射線検出器を含み、前記寝台に載置された被検体に前記放射線源から放射線の照射を行い、前記放射線検出器で検出する撮影装置と；前記撮影装置の前記寝台上に取り付けられ、被検者の***撮影のために使用する***固定具と；を備え、前記***固定具は、被検者がうつ伏せ状態で寝ることができ放射線が透過可能なマット部材と、このマット部材の被検者の胸部が載る部分に形成され、被検者の***を入れることができる一対の椀状の窪みと、この窪みに***を挿入した状態で前記窪み内の空気を吸引するための吸引穴を有してなることを特徴とする。   An X-ray CT apparatus according to claim 1 of the present invention includes a bed on which a subject is placed, a radiation source and a radiation detector arranged to face the radiation source, and the subject placed on the bed An imaging device for irradiating radiation from the radiation source and detecting with the radiation detector; and a breast fixture mounted on the bed of the imaging device and used for mammography of the subject; The breast fixing tool is formed on a mat member on which a subject can sleep in a lying state and can transmit radiation, and a portion of the mat member on which the chest of the subject rests, and the breast of the subject is It is characterized by having a pair of bowl-shaped depressions that can be inserted, and suction holes for sucking air in the depressions while breasts are inserted into the depressions.

また、本発明の請求項３記載の***固定具は、被検者の***撮影のために使用するものであって、被検者がうつ伏せ状態で寝ることができる放射線が透過可能なマット部材と、前記マット部材の被検者の胸部が載る部分に形成され、被検者の***を入れることができる一対の椀状の窪みと、前記窪みに***を挿入した状態で前記窪み内の空気を吸引するための吸引穴と、を具備してなることを特徴とする。   A breast fixture according to claim 3 of the present invention is used for mammography of a subject, and a radiation-transmissive mat member that allows the subject to sleep in a prone state. The mat member is formed in a portion where the chest of the subject is placed, and a pair of bowl-shaped depressions into which the breast of the subject can be placed, and the air in the depression with the breast inserted into the depression. And a suction hole for sucking.

本発明によれば、***固定具を使用して***を固定し、呼吸動、心拍動の影響を大きく抑えて断層撮影を行うことができ、***撮影時の***の痛みを軽減して撮影を行うことができる。また、自然***に近い伏態で撮影することができるので病変位置を正確に把握することができる。   According to the present invention, the breast can be fixed using a breast fixing tool, and tomography can be performed while greatly reducing the influence of respiratory motion and heartbeat, and imaging can be performed while reducing breast pain during mammography. It can be carried out. In addition, since the image can be taken in the prone state close to the natural body position, the lesion position can be accurately grasped.

以下、この発明の一実施の形態について図面を参照して詳細に説明する。   Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

図１は、本発明のＸ線ＣＴ装置の全体構成を示す構成図である。図１においてＸ線ＣＴ装置１０は、架台１１内に放射線源としてのＸ線管、及び放射線検出器（Ｘ線検出器）を含む撮影装置を備え、Ｘ線検出器からのデータをデータ収集部で収集し、収集したデータを処理して画像診断を行うものである。  FIG. 1 is a configuration diagram showing the overall configuration of the X-ray CT apparatus of the present invention. In FIG. 1, an X-ray CT apparatus 10 includes an imaging device including an X-ray tube as a radiation source and a radiation detector (X-ray detector) in a gantry 11, and collects data from the X-ray detector as a data collection unit. The collected data is processed, and the collected data is processed to perform image diagnosis.

架台１１には環状の穴部１２が設けられ、被検者を載せた寝台天板１３を矢印ｘ方向に移動することでヘリカルスキャン等を行い、被検者の断層像を得ることができる。一方、２０は***固定具であり、寝台天板１３の上に装着可能である。  The gantry 11 is provided with an annular hole 12, and a tomographic image of the subject can be obtained by performing a helical scan or the like by moving the bed top 13 on which the subject is placed in the direction of the arrow x. On the other hand, 20 is a breast fixing tool that can be mounted on the bed top plate 13.

図２は、***固定具２０の詳細な構成を説明する斜視図である。図２に示すように***固定具２０は、例えば硬質スポンジで形成されたマット部材２１を有し、被検者はマット部材２１の上にうつ伏せ状態で寝るようにする。マット部材２１は、被検者の顔（顎部）が載る第１の部分２２と、胸部が載る第２の部分２３と、腹部以下の下半身が載る第３の部分２４からなる。第１の部分２２は、第３の部分２４よりも厚さが大きく、第２の部分２３は、第３の部分２４から第１の部分２２に向かって厚さが漸増している。これにより、被検者は固定具２０の上に自然な形でうつ伏せになることができる。  FIG. 2 is a perspective view illustrating a detailed configuration of the breast fixture 20. As shown in FIG. 2, the breast fixture 20 includes a mat member 21 formed of, for example, a hard sponge, and the subject sleeps on the mat member 21 in a lying state. The mat member 21 includes a first portion 22 on which the subject's face (jaw) is placed, a second portion 23 on which the chest is placed, and a third portion 24 on which the lower half of the abdomen is placed. The first portion 22 is thicker than the third portion 24, and the second portion 23 gradually increases in thickness from the third portion 24 toward the first portion 22. Thus, the subject can lie down on the fixture 20 in a natural manner.

また、第２の部分２３の傾斜面には、被検者がうつ伏せ状態で寝たときに***を挿入可能な一対の椀状の窪み３１を設けている。窪み３１の開口周辺部にはゴム部材３２が取付けられている。一方、第２の部分２３の側面には、窪み３１に通じる吸引用の穴３３が設けられ、穴３３にはチューブ３４の一端が挿通可能になっている。  In addition, the inclined surface of the second portion 23 is provided with a pair of bowl-shaped depressions 31 into which a breast can be inserted when the subject is lying on his / her face down. A rubber member 32 is attached to the periphery of the opening of the recess 31. On the other hand, a suction hole 33 leading to the recess 31 is provided on the side surface of the second portion 23, and one end of the tube 34 can be inserted into the hole 33.

チューブ３４の他端は吸引ポンプ（図示せず）につながり、窪み３１に***が挿入された状態で、吸引ポンプで窪み内の空気を吸引することにより、***を窪み３１の内部方向に引き付けることができる。ゴム部材３２は、吸引ポンプによる吸引時に窪み３１の開口部から空気が入るのを防ぎ、かつ***が固定具２０に当接したときの痛みを軽減する役割がある。  The other end of the tube 34 is connected to a suction pump (not shown), and the breast is attracted toward the inside of the depression 31 by sucking the air in the depression with the suction pump while the breast is inserted into the depression 31. Can do. The rubber member 32 has a role of preventing air from entering through the opening of the recess 31 during suction by the suction pump and reducing pain when the breast comes into contact with the fixture 20.

さらに***固定具２０の底面には、***固定具２０を寝台天板１３の上に固定するためのアタッチメント３５が設けられ、***固定具２０を寝台天板１３に位置決めできるようにしている。アタッチメント３５は、Ｘ線撮影に支障がない材料で形成され、***固定具２０を寝台天板１３に取付けたときに不用意に動かないようにするものであり、どのような構造であっても良い。  Further, an attachment 35 for fixing the breast fixture 20 on the bed top plate 13 is provided on the bottom surface of the breast fixture 20 so that the breast fixture 20 can be positioned on the bed top plate 13. The attachment 35 is made of a material that does not interfere with X-ray imaging, and prevents the breast fixing tool 20 from moving carelessly when it is attached to the bed top plate 13. good.

次に、***固定具２０の使用方法について説明する。***固定具２０は、撮影装置１０の寝台天板１３の上に固定され、被検者は、***が窪み３１に入るようにうつ伏せ状態で***固定具２０の上に寝る。このとき、被検者の顎が第１の部分２２で受け止められる。  Next, a method for using the breast fixture 20 will be described. The breast fixture 20 is fixed on the bed top 13 of the imaging apparatus 10, and the subject sleeps on the breast fixture 20 in a prone state so that the breast enters the depression 31. At this time, the subject's jaw is received by the first portion 22.

この状態で、吸引ポンプにより窪み３１内の空気を適度に吸引することにより、***は穴３３の方向に引き付けられる。そしてこの状態で撮影装置１０は断層撮影を行う。  In this state, the breast is attracted in the direction of the hole 33 by appropriately sucking the air in the depression 31 by the suction pump. In this state, the imaging apparatus 10 performs tomography.

これにより、***は窪み３１内に多少引き伸ばされ、固定された状態で撮影することができる。また、撮影時に被検者は自然***の形でうつ伏せになれるため、呼吸動、心拍動の影響を低く抑えることができる。しかも、従来のマンモグラフィのように***を強く圧迫することがないため、体への負担が小さく、正確に乳がんの位置を特定することができる。  As a result, the breast is slightly stretched in the recess 31 and can be photographed in a fixed state. In addition, since the subject can lie down in the form of a natural posture at the time of photographing, the influence of respiratory motion and heartbeat can be kept low. Moreover, since the breast is not strongly compressed unlike conventional mammography, the burden on the body is small, and the position of breast cancer can be accurately identified.

このように本発明によれば、***固定員２０を使用して、***を固定し、呼吸動、心拍動の影響を大きく抑えて断層撮影を行うことで、***撮影時の***の痛みを軽減して撮影を行うことができる。また、自然***に近い伏態での撮影となるため、自然***でのがんの位置を正確に特定することができる。   As described above, according to the present invention, the breast is fixed using the breast fixing member 20, and tomography is performed while greatly reducing the influence of respiratory motion and heartbeat, thereby reducing the pain of the breast at the time of mammography. You can take a picture. In addition, since the photographing is performed in the prone state close to the natural posture, the position of the cancer in the natural posture can be accurately identified.

尚、特許請求の範囲を逸脱しない範囲内で種々の変形が可能である。   Various modifications can be made without departing from the scope of the claims.

本発明のＸ線ＣＴ装置の全体構成を示す斜視図。The perspective view which shows the whole structure of the X-ray CT apparatus of this invention. 同実施形態に使用する***固定具の詳細な構成を示す斜視図。The perspective view which shows the detailed structure of the breast fixing tool used for the embodiment.

符号の説明Explanation of symbols

１０…Ｘ線ＣＴ装置
１１…架台
１２…穴部
１３…寝台天板
２０…***固定具
２３…第１の部分
２３…第２の部分
２４…第３の部分
３１…窪み
３２…ゴム部材
３３…吸引用の穴
３４…チューブ DESCRIPTION OF SYMBOLS 10 ... X-ray CT apparatus 11 ... Base 12 ... Hole part 13 ... Bed top plate 20 ... Breast fixture 23 ... 1st part 23 ... 2nd part 24 ... 3rd part 31 ... Depression 32 ... Rubber member 33 ... Hole 34 for suction ... Tube

Claims (7)

被検者を載置する寝台と、放射線源及び前記放射線源に対向配置された放射線検出器を含み、前記寝台に載置された被検体に前記放射線源から放射線の照射を行い、前記放射線検出器で検出する撮影装置と、
前記撮影装置の前記寝台上に取り付けられ、被検者の***撮影のために使用する***固定具とを備え、
前記***固定具は、被検者がうつ伏せ状態で寝ることができ放射線が透過可能なマット部材と、このマット部材の被検者の胸部が載る部分に形成され、被検者の***を入れることができる一対の椀状の窪みと、この窪みに***を挿入した状態で前記窪み内の空気を吸引するための吸引穴を有してなることを特徴とするＸ線ＣＴ装置。 A radiation table disposed on the bed, and a radiation detector disposed on the bed, the radiation detector including a radiation table disposed on the bed, a radiation source and a radiation detector disposed opposite to the radiation source; An imaging device to detect with the instrument,
A breast fixture mounted on the bed of the imaging device and used for mammography of the subject;
The breast fixing device is formed on a portion of the mat member on which the subject can sleep while lying down and can transmit radiation, and the chest of the subject is placed on the mat member, and puts the breast of the subject. An X-ray CT apparatus comprising: a pair of bowl-shaped depressions capable of forming a suction hole for sucking air in the depression with a breast inserted into the depression. 前記マット部材の底面に、前記***固定具を前記寝台に固定するためのアタッチメントを設けたことを特徴とする請求項１記載のＸ線ＣＴ装置。  The X-ray CT apparatus according to claim 1, wherein an attachment for fixing the breast fixing tool to the bed is provided on the bottom surface of the mat member. 被検者の***撮影のために使用する***固定具であって、
被検者がうつ伏せ状態で寝ることができる放射線が透過可能なマット部材と、
前記マット部材の被検者の胸部が載る部分に形成され、被検者の***を入れることができる一対の椀状の窪みと、
前記窪みに***を挿入した状態で前記窪み内の空気を吸引するための吸引穴と、を具備してなる***固定具。 A breast fixture used for mammography of a subject,
A mat member capable of transmitting radiation that allows the subject to sleep in a prone state,
A pair of bowl-shaped depressions formed on a portion of the mat member on which the chest of the subject is placed and into which the breast of the subject can be placed;
A breast fixture comprising: a suction hole for sucking air in the depression with the breast inserted into the depression. 前記マット部材は、硬質スポンジで形成されたことを特徴とする請求項３に記載の***固定具。  The breast fixing tool according to claim 3, wherein the mat member is formed of a hard sponge. 前記マット部材は、被検者の顔の部分が載る第１の部分と、胸部が載る第２の部分と、腹部以下の下半身が載る第３の部分からなり、
前記第１の部分の厚さが前記第３の部分の厚さよりも大きく、前記第２の部分は、前記第３の部分から第１の部分に向かって厚さが漸増し、前記第２の部分の傾斜面に前記椀状の窪みを形成したことを特徴とする請求項３に記載の***固定具。 The mat member is composed of a first part on which the face portion of the subject is placed, a second part on which the chest is placed, and a third part on which the lower body below the abdomen is placed,
The thickness of the first portion is greater than the thickness of the third portion, and the second portion gradually increases in thickness from the third portion toward the first portion, and the second portion The breast fixture according to claim 3, wherein the bowl-shaped depression is formed on the inclined surface of the portion. 前記吸引穴にチューブを挿通し、前記窪みに***を挿入した状態で前記チューブを介して吸引ポンブにより前記窪み内の空気を吸引可能にしたことを特徴とする請求項３に記載の***固定具。  The breast fixture according to claim 3, wherein a tube is inserted into the suction hole, and air in the recess can be sucked by a suction pump through the tube in a state where a breast is inserted into the recess. . 前記椀状の窪みの開口部周辺にゴム部材を取付けたことを特徴とする請求項３に記載の***固定具。  The breast fixture according to claim 3, wherein a rubber member is attached around the opening of the bowl-shaped depression.
JP2006119158A 2006-04-24 2006-04-24 X-ray computed tomography apparatus and mamma fixing tool Pending JP2007289326A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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JP2008220638A (en) * 2007-03-13 2008-09-25 General Electric Co <Ge> Mamma immobilization apparatus and mammography
JP4598791B2 (en) * 2007-03-13 2010-12-15 ゼネラル・エレクトリック・カンパニイ Breast immobilization device and breast imaging method
JP2013022040A (en) * 2011-07-15 2013-02-04 Shimadzu Corp Radiographic apparatus for breast examination
JP5637315B2 (en) * 2011-07-28 2014-12-10 株式会社島津製作所 Nuclear medicine diagnostic equipment
CN109513122A (en) * 2019-01-14 2019-03-26 西安交通大学医学院第附属医院 The medical radiotherapy positioner of adjustable type
CN109513122B (en) * 2019-01-14 2021-06-18 西安交通大学医学院第一附属医院 Adjustable medical radiotherapy positioner
KR102145875B1 (en) * 2019-08-22 2020-08-19 (주)한국원자력 엔지니어링 Breast Cancer Diagnostic Apparatus
DE102022115564A1 (en) 2022-06-22 2023-12-28 Hochschule Hamm-Lippstadt, Körperschaft des öffentlichen Rechts Radiation therapy positioning system for positioning a patient in the prone position
DE102022115564B4 (en) 2022-06-22 2024-05-08 Hochschule Hamm-Lippstadt, Körperschaft des öffentlichen Rechts Positioning system for radiotherapy for positioning a patient in a prone position

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