JP2005131001A - Radiographic x-ray equipment - Google Patents

Radiographic x-ray equipment Download PDF

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JP2005131001A
JP2005131001A JP2003368825A JP2003368825A JP2005131001A JP 2005131001 A JP2005131001 A JP 2005131001A JP 2003368825 A JP2003368825 A JP 2003368825A JP 2003368825 A JP2003368825 A JP 2003368825A JP 2005131001 A JP2005131001 A JP 2005131001A
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ray
imaging
type holding
holding arm
floor
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Toru Nakayama
徹 中山
Hiroshi Inoue
啓史 井上
Isao Nakada
勲 中田
Mitsuru Umeda
充 梅田
Yoshiji Akutsu
好二 阿久津
Yoshihide Magari
吉秀 鈎
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Shimadzu Corp
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Shimadzu Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide radiographic X-ray equipment capable of enlarging a rotating angle of bidirectional and simultaneous imaging using two sets of C-type retaining arms equipped with X-ray tube devices and X-ray receiving sections in the both ends. <P>SOLUTION: The rotation radius R<SB>26</SB>of a C-type retaining arm 26 is manufactured smaller than the distance H<SB>26</SB>from a floor surface, the C-type retaining arm 26 is suspended from a ceiling suspension section 26a provided in a ceiling of the height Cn, and an X-ray tube device 25 and an FPD (Flat Panel Display) 27 opposed thereto at a retaining section 27b are mounted in its both ends. On the other hand, a floor type device has a C-type retaining arm 23 supported to a support section from the floor, and an X-ray tube device 22 and an FPD 24 opposed thereto are mounted in its both ends and set inside the C-type retaining arm 26. The imaging is performed simultaneously and bidirectionally by rotating the both devices. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、Ｘ線透視撮影装置に係わり、特に、Ｘ線管装置とＸ線受像部をＣ型保持アームの両端に対向して取付けた装置を２台用いて、心臓血管及び頭腹部血管撮影などを行うバイプレーン（２方向同時撮影）システムに関する。   The present invention relates to an X-ray fluoroscopic apparatus, and in particular, by using two apparatuses in which an X-ray tube apparatus and an X-ray image receiving unit are attached to opposite ends of a C-type holding arm, cardiovascular and cranio-abdominal angiography. The present invention relates to a biplane (two-direction simultaneous photographing) system.

循環器Ｘ線診断法は、血管に挿入したカテーテルより造影剤を注入して血管内部をＸ線撮影するもので、循環器系疾患の画像診断法としては、超音波法、ＣＴ、ＭＲＩ、及び核医学法などがあるが、Ｘ線診断法は、抹消までの血管の走行や血管内壁の状態を直接的に観察できるので最終確定診断として施行される。
循環器Ｘ線撮影システムには、心血管撮影システムと、頭・腹部下肢血管撮影システムがある。心血管撮影システムは、最も動きが激しい心臓、及び冠動脈の造影を目的とし、主に、左心室造影により収縮運動を動画観察し、または冠動脈造影により狭窄や閉塞などを観察し、デジタル画像処理装置に撮影収集する。また、頭・腹部下肢血管撮影システムは、カテーテルを頭部、腹部、下肢などの目的部位まで進め、選択的に造影してＤＡ撮影、ＤＳＡ撮影を行い、そして、ＩＶＲ手技によって治療などが行われる。
心血管および頭・腹部下肢血管撮影システムには、一回の造影剤注入で２方向からの撮影を同時に行い、造影剤の使用量を減らし検査時間を短縮して、被検者の負担を軽減する正面側面２方向同時撮影（バイプレーン撮影）システムが使われる。
２方向同時撮影（バイプレーン撮影）システムは、２組のＣ型保持アームが用いられ、床置き式のＣ型保持アームを有した装置と、天井懸垂式のＣ型保持アームを有した装置が、被検者の撮影部位を中心に異なる２方向から透視撮影できるようにセットされ、一回の造影剤注入で２方向から画像が得られる。各装置は独立に設定することができ、バイプレーンでも安全に操作できるように、コンピュータで両アームの干渉チェックや、自動操作できる機能を備えている。また、装置近傍に造影剤を注入するインジェクタ（造影剤注入器）が備えられ、撮影開始で自動的に注入される。また、造影する前に心電図や圧波形を表示するポリグラフが備えられ、造影前に心臓の各部の圧波形や血流量が測定される。また、心室細動を起こした場合に使用する除細動器が備えられる。 Cardiovascular X-ray diagnosis is a method in which a contrast medium is injected from a catheter inserted into a blood vessel and the inside of the blood vessel is X-rayed. As an image diagnosis method for a circulatory system disease, an ultrasonic method, CT, MRI, and Although there are nuclear medicine methods, the X-ray diagnostic method is implemented as a final definitive diagnosis because it can directly observe the running of the blood vessels and the state of the inner wall of the blood vessels until eradication.
The cardiovascular X-ray imaging system includes a cardiovascular imaging system and a head / abdominal leg angiography system. The cardiovascular imaging system is intended for imaging of the heart and coronary arteries with the most movement, and mainly observes the contraction movement by left ventricular imaging or observes stenosis and occlusion by coronary angiography. To shoot and collect. In addition, the head and abdomen leg angiography system advances the catheter to the target site such as the head, abdomen, and lower limbs, selectively contrasts and performs DA imaging and DSA imaging, and treatment is performed by IVR technique. .
The cardiovascular and head / abdominal leg angiography systems simultaneously perform imaging from two directions with a single injection of contrast agent, reducing the amount of contrast agent used and reducing the examination time, thereby reducing the burden on the subject. A front-side two-direction simultaneous photographing (biplane photographing) system is used.
The two-direction simultaneous imaging (biplane imaging) system uses two sets of C-type holding arms, and includes an apparatus having a floor-standing C-type holding arm and an apparatus having a ceiling-suspended C-type holding arm. These are set so that fluoroscopic imaging can be performed from two different directions with the imaging region of the subject as the center, and an image can be obtained from two directions with a single injection of contrast medium. Each device can be set independently, and equipped with a computer that can check the interference between the arms and automatically operate it so that it can be safely operated on the biplane. In addition, an injector (contrast medium injector) for injecting a contrast medium in the vicinity of the apparatus is provided, and is automatically injected at the start of imaging. In addition, a polygraph that displays an electrocardiogram and a pressure waveform before contrast is provided, and the pressure waveform and blood flow in each part of the heart are measured before contrast. In addition, a defibrillator is provided for use when ventricular fibrillation occurs.

図２に、２組のＣ型保持アーム１６、１３を有するＸ線透視撮影装置を示す。（ａ）は２組のＸ線放射軸が直交するように配置された状態を示し、（ｂ）は天井懸垂式のＸ線透視撮影装置が回転した状態を示す。
一組のＸ線透視撮影装置は、高さＣｏの天井に設けられた天井懸垂部１６ａからＣ型保持アーム１６が懸垂され、その両端にはＸ線管装置１５とそれに対向して保持部１７ｂにＩ．Ｉ．１７及びＴＶカメラ１７ａが取付けられている。他の組のＸ線透視撮影装置は、床置き式の装置で床からの支持部にＣ型保持アーム１３が支持され、その両端にはＸ線管装置１２とそれに対向してＣ型保持アーム１３に設けられた保持部にＩ．Ｉ．１４及びＴＶカメラ１４ａが取付けられている。そして、両Ｘ線透視撮影装置は、それぞれが回転しても干渉する範囲が少なくなるように、床置き式の装置のＣ型保持アーム１３の回転半径を小さくし、天井懸垂式の装置のＣ型保持アーム１６の回転半径Ｒ16を大きくしている。そして、Ｘ線撮影拡大率が同じになるように、｛Ｌ14＋Ｌ12｝／Ｌ12＝｛Ｌ17＋Ｌ15｝／Ｌ15に調整される。
Ｘ線管装置１５、１２は、ＤＡ撮影時に大電流、大出力で、且つ次々と角度を変えて撮影するのでターゲットの熱容量が大きく、冷却率の高いＸ線管が使われる。そして、バイプレーンの心血管装置では、撮影時は交互にＸ線が照射される。 FIG. 2 shows an X-ray fluoroscopic apparatus having two sets of C-shaped holding arms 16 and 13. (A) shows the state arrange | positioned so that two sets of X-ray radiation axes may orthogonally cross, (b) shows the state which the ceiling suspension type X-ray fluoroscopic imaging apparatus rotated.
In a set of X-ray fluoroscopic apparatus, a C-type holding arm 16 is suspended from a ceiling suspension portion 16a provided on a ceiling having a height Co, and an X-ray tube device 15 and a holding portion 17b opposite to the X-ray tube device 15 are provided at both ends thereof. I. I. 17 and a TV camera 17a are attached. Another set of X-ray fluoroscopic apparatus is a floor-standing apparatus in which a C-type holding arm 13 is supported on a support portion from the floor, and an X-ray tube apparatus 12 is opposed to both ends of the C-type holding arm at both ends. 13 to the holding portion provided in I. 14 and a TV camera 14a are attached. Both X-ray fluoroscopic apparatuses reduce the radius of rotation of the C-type holding arm 13 of the floor-standing apparatus so that the interference range is reduced even if they rotate, and C of the ceiling-suspended apparatus. The rotation radius R 16 of the mold holding arm 16 is increased. Then, it is adjusted to {L 14 + L 12 } / L 12 = {L 17 + L 15 } / L 15 so that the X-ray imaging magnification is the same.
Since the X-ray tube apparatuses 15 and 12 perform imaging with a large current and a large output at the time of DA imaging and successively change the angle, an X-ray tube having a large heat capacity and a high cooling rate is used. In a biplane cardiovascular device, X-rays are alternately irradiated during imaging.

２組のＣ型保持アーム１３、１６を有するＸ線透視撮影装置に対し、被検者を載せたカテーテル寝台がＣ型保持アーム１３、１６の回転中心に頭部側から挿入される。そして、操作者はＣ型保持アーム１３を電動で操作し、Ｘ線管装置１２装着のＣ型保持アーム１３を有する床置き式のＸ線透視撮影装置が、被検者の頭部方向からセットされる。被検者左右方向に他の装置に干渉しないように回転することができ、また、頭足方向に深い角度付けができる。一方、操作者はＣ型保持アーム１６を電動で操作し、Ｘ線管装置１５装着のＣ型保持アーム１６を有する天井懸垂部１６ａから懸垂されたＸ線透視撮影装置が、被検者の左側または右側方向からセットされる。被検者の体軸回りに他の装置に干渉しないように回転することができ、また、被検者の頭足方向に深い角度付けができる。
心血管撮影の場合、Ｃ型保持アーム１３、１６を有する装置で多方向から撮影し、冠状動脈の重なりを避けるような角度づけを行い、双方のＸ線ビームの回転中心（アイソセンタ）に被検者の心臓位置を設定すると、アームの回転により心臓が画像中心からずれることなく撮影することができる。
頭・腹部撮影の場合、バイプレーンで撮影した画像を取り込み、２つの面の画像の逆投影によって３次元画像を容易に構成することができる。
特開平１０−２３４７１７号公報 （第４頁、第１図） For an X-ray fluoroscopic apparatus having two sets of C-type holding arms 13 and 16, a catheter bed on which a subject is placed is inserted into the center of rotation of the C-type holding arms 13 and 16 from the head side. Then, the operator operates the C-type holding arm 13 electrically, and the floor-standing X-ray fluoroscopic apparatus having the C-type holding arm 13 attached to the X-ray tube device 12 is set from the head direction of the subject. Is done. The subject can be rotated in the left-right direction so as not to interfere with other devices, and can be deeply angled in the head-and-foot direction. On the other hand, the operator operates the C-type holding arm 16 electrically, and the X-ray fluoroscopic apparatus suspended from the ceiling suspension portion 16a having the C-type holding arm 16 attached to the X-ray tube device 15 is left of the subject. Or set from the right direction. It can be rotated around the body axis of the subject so as not to interfere with other devices, and a deep angle can be formed in the direction of the head and feet of the subject.
In the case of cardiovascular imaging, images are taken from multiple directions using an apparatus with C-shaped holding arms 13 and 16, and are angled to avoid overlapping coronary arteries. When the person's heart position is set, the heart can be photographed without shifting from the center of the image due to the rotation of the arm.
In the case of head / abdomen imaging, it is possible to easily construct a three-dimensional image by capturing an image captured on a biplane and back projecting the images of the two surfaces.
Japanese Patent Laid-Open No. 10-234717 (Page 4, FIG. 1)

従来のＸ線透視撮影装置は以上のように構成されているが、Ｃ型保持アーム１３、１６の両端に対向する形でＸ線管装置１２、１５と映像系（Ｉ．Ｉ．１４、１７＋ＴＶカメラ１４ａ、１７ａ）を配置したＸ線透視撮影装置を２台組み合わせるシステムでは、２台の干渉を避けるためにそれぞれ半径の異なるＣ型保持アーム１３、１５で構成されており、映像系としてＩ．Ｉ．１４、１７を用いているためＣ型保持アーム１３、１６の径が大きくなり、床から回転中心までの高さＨ16よりも大きな半径Ｒ16を持つ外側のＣ型保持アーム１６は、図２（ｂ）に示すように、０°〜９０°さらに回転するとＣ型保持アーム１６が床に支えてしまう。そして、１２０°程度までしか回転することができない。
心臓や頭部などの検査・治療を行う際には、様々な角度からの透視・撮影が必要となる。上記のような２台のＸ線透視撮影装置を組み合わせた装置では、外側のＣ型保持アーム１６の径は大きくなり、その回転角度に制限があるために検査・治療に有効である大きな角度付けができないという問題がある。 The conventional X-ray fluoroscopic imaging apparatus is configured as described above, but the X-ray tube apparatuses 12 and 15 and the video system (II.14, 17 + TV) are opposed to both ends of the C-shaped holding arms 13 and 16. In a system in which two X-ray fluoroscopic apparatuses having cameras 14a and 17a) are arranged, C-type holding arms 13 and 15 having different radii are used to avoid interference between the two X-ray fluoroscopic apparatuses. I. 14 and 17, the diameter of the C-type holding arms 13 and 16 is increased, and the outer C-type holding arm 16 having a radius R 16 larger than the height H 16 from the floor to the center of rotation is shown in FIG. As shown in (b), the C-type holding arm 16 is supported on the floor when it is further rotated by 0 ° to 90 °. And it can rotate only up to about 120 °.
When examining or treating the heart or head, it is necessary to perform fluoroscopy and imaging from various angles. In an apparatus combining two X-ray fluoroscopic apparatuses as described above, the outer C-type holding arm 16 has a large diameter, and the rotation angle is limited, so that a large angle is effective for examination and treatment. There is a problem that can not be.

本発明は、このような事情に鑑みてなされたものであって、Ｘ線管装置とＸ線受像部をＣ型保持アームの両端に対向して取付けた装置を２組使用し、バイプレーン（２方向同時撮影）撮影の回転角度を増やすことができるＸ線透視撮影装置を提供することを目的とする。   The present invention has been made in view of such circumstances, and uses two sets of devices in which an X-ray tube device and an X-ray image receiving unit are attached to opposite ends of a C-type holding arm, and a biplane ( An object of the present invention is to provide an X-ray fluoroscopic apparatus capable of increasing the rotation angle of two-directional simultaneous imaging.

上記の目的を達成するため、本発明のＸ線透視撮影装置は、Ｘ線管装置とＸ線受像部をＣ型保持アームの両端に対向して取付け、Ｘ線管装置とＸ線受像部を結ぶＸ線軸を任意の角度に設定できるよう回転させる回転駆動部を備えたＸ線装置を２個組み合わせて設置し２方向同時撮影を行うＸ線透視撮影装置において、２個のＸ線装置におけるそれぞれのＣ型保持アームの半径を前記Ｃ型保持アームの回転中心の床間からの高さより小さく設定したものである。   In order to achieve the above object, the X-ray fluoroscopic apparatus of the present invention has an X-ray tube device and an X-ray image receiving portion attached to opposite ends of a C-type holding arm, and the X-ray tube device and the X-ray image receiving portion are attached. In an X-ray fluoroscopic apparatus that performs two-direction simultaneous imaging by installing two X-ray apparatuses that are provided with a rotation drive unit that rotates so as to set an X-ray axis to be connected to an arbitrary angle, each of the two X-ray apparatuses The radius of the C-type holding arm is set to be smaller than the height from the space between the rotation centers of the C-type holding arm.

また、本発明のＸ線透視撮影装置は、上記Ｘ線受像部を平面型検出器にて構成したものである。   In the X-ray fluoroscopic apparatus of the present invention, the X-ray image receiving unit is constituted by a flat detector.

本発明のＸ線透視撮影装置は上記のように構成されており、２台の装置ともＣ型保持アームの回転半径が床間との距離よりも小さい半径に製作され、そのＣ型保持アームの両端にＸ線管装置と平面型検出器を対向して取付け、回転駆動させる。Ｃ型保持アームを床に接触することなく大きな角度付けで必要な２方向から患部を同時撮影する。   The X-ray fluoroscopic imaging apparatus of the present invention is configured as described above, and both of the two apparatuses are manufactured so that the radius of rotation of the C-type holding arm is smaller than the distance between the floors. At both ends, an X-ray tube device and a flat detector are mounted facing each other and driven to rotate. The affected part is simultaneously photographed from two necessary directions with a large angle without contacting the C-type holding arm with the floor.

本発明のＸ線透視撮影装置は上記のように構成されており、映像系を従来の大きなイメージインテンシファイアからフラットパネルの平面型検出器に変更し、２台のＣ型保持アームの両端にそれぞれＸ線管装置と平面型検出器を対向して取付け、２台の装置ともＣ型保持アームの回転半径が床間との距離よりも小さい半径に製作されているので、Ｃ型保持アームを回転駆動しても装置が床に触れ干渉することがない。そのため、心臓や頭部などの検査・治療を行う時に、様々な角度から透視・撮影を行うことができる。   The X-ray fluoroscopic imaging apparatus of the present invention is configured as described above, and the video system is changed from a conventional large image intensifier to a flat panel flat detector, and is attached to both ends of two C-type holding arms. The X-ray tube device and the flat detector are mounted facing each other, and since the rotation radius of the C-type holding arm is smaller than the distance between the floors in both devices, the C-type holding arm is The device does not touch and interfere with the floor even if it is driven to rotate. Therefore, it is possible to perform fluoroscopy and imaging from various angles when examining and treating the heart and head.

本Ｘ線透視撮影装置は２台のＣ型保持アームを有し、バイプレーン撮影（２方向同時撮影）を行うシステムで、Ｘ線受像部にフラットな平面検出器を用い、外側に位置するＣ型保持アームの回転半径Ｒが、床から回転中心までの距離Ｈよりも短くして、回転角度が床に制限されることなく、様々な角度から心臓又は頭部を２方向同時撮影することを可能にした。また、Ｃ型保持アームが小さいため、検査室の天井の高さが低い検査室でもバイプレーン装置を設置でき２方向同時撮影を可能にした。   This X-ray fluoroscopic apparatus has two C-shaped holding arms and performs biplane imaging (simultaneous imaging in two directions). A flat planar detector is used for the X-ray image receiving unit, and C located outside. The rotational radius R of the mold holding arm is shorter than the distance H from the floor to the center of rotation, and the heart or head is simultaneously imaged in two directions from various angles without the rotational angle being limited to the floor. Made possible. In addition, since the C-type holding arm is small, a biplane device can be installed even in an inspection room where the ceiling height of the inspection room is low, and two-way simultaneous imaging is possible.

図１は、２組のＣ型保持アーム２６、２３を有するＸ線透視撮影装置を示す図である。（ａ）は２組のＸ線放射軸が直交するように配置された状態を示し、（ｂ）は天井懸垂式のＸ線透視撮影装置が回転した状態を示す。
本発明のＸ線透視撮影装置は、２組のＣ型保持アーム２６、２３と、その両端に取付けられたＸ線管装置２５、２２と、ＦＰＤ２７、２４と、それぞれのＣ型保持アーム２６、２３を保持する天井懸垂部２６ａと床置き式の支持部（図示せず）とから構成される。 FIG. 1 is a view showing an X-ray fluoroscopic apparatus having two sets of C-shaped holding arms 26 and 23. (A) shows the state arrange | positioned so that two sets of X-ray radiation axes may orthogonally cross, (b) shows the state which the ceiling suspension type X-ray fluoroscopic imaging apparatus rotated.
The X-ray fluoroscopic apparatus of the present invention includes two sets of C-type holding arms 26 and 23, X-ray tube devices 25 and 22 attached to both ends thereof, FPDs 27 and 24, and respective C-type holding arms 26, The ceiling suspension part 26a which hold | maintains 23 and the floor-standing support part (not shown) are comprised.

本Ｘ線透視撮影装置と従来の装置の異なるところは、従来の装置は図２に示すようにバイプレーンの外側に位置するＣ型保持アーム１６の回転半径Ｒ16が、装置にＩ．Ｉ．１７を使用して、床から回転中心までの距離Ｈ16よりも大きいため、回転角度に制限されるが、これに対し、本Ｘ線透視撮影装置はバイプレーンの外側に位置するＣ型保持アーム２６の回転半径Ｒ26が、装置にＦＰＤ２７を使用して、床から回転中心までの距離Ｈ26よりも小さい。そのため設定できる回転角度を床に制限されること無く大きく変更して、様々な角度から心臓又は頭部を２方向同時撮影することができる。また、Ｃ型保持アーム２６が小さいため、検査室の天井の高さＣｎが低い検査室で使用することができる。 The difference between the X-ray fluoroscopic apparatus and the conventional apparatus is that the conventional apparatus has a rotation radius R 16 of the C-type holding arm 16 positioned outside the biplane as shown in FIG. I. 17 is larger than the distance H 16 from the floor to the center of rotation, and thus the rotation angle is limited. On the other hand, the X-ray fluoroscopic apparatus is a C-type holding arm located outside the biplane. The radius of rotation R 26 of 26 is smaller than the distance H 26 from the floor to the center of rotation using the FPD 27 in the apparatus. Therefore, the rotation angle that can be set is greatly changed without being limited to the floor, and the heart or the head can be photographed simultaneously in two directions from various angles. Further, since C-type retaining arm 26 is small, it is the height C n of the ceiling of the examination room is used in lower laboratory.

次に、本Ｘ線透視撮影装置の構成各部について説明する。
Ｃ型保持アーム２６は、天井から天井懸垂部２６ａで懸垂され、両端にＸ線管装置２５と保持部２７ｂを介してＦＰＤ２７が取付けられ、回転半径Ｒ26が、回転中心から床までの距離Ｈ26よりも小さく製作され、図１（ｂ）に示すように、床に干渉することなく回転させることができ、様々な角度から撮影できる。
Ｃ型保持アーム２３は、床置き式の支持部（図示せず）で支持され、両端にＸ線管装置２２と保持部（図示せず）を介してＦＰＤ２４が取付けられ、Ｃ型保持アーム２６の内側にセットされ、干渉しないように様々な角度から撮影できる。
そして、Ｘ線撮影拡大率が同じになるように、｛Ｌ24＋Ｌ22｝／Ｌ22＝｛Ｌ27＋Ｌ25｝／Ｌ25に調整される。
Ｘ線管装置２５、２２は、ＤＡ撮影時に大電流、大出力で、且つ次々と角度を変えて撮影するのでターゲットの熱容量が大きく、冷却率の高いＸ線管が使われる。そして、バイプレーンの心血管装置では、撮影時は交互にＸ線が照射される。
ＦＰＤ２７、２４は、図２に示すＩ．Ｉ．１７、１４のように奥行きの寸法が大きくなく、フラットな平面検出器である。フラットであるためＣ型保持アーム１６の回転半径Ｒ26を小さくすることができる。
この平面検出器のＦＰＤ２７、２４は、Ｘ線照射によって電荷を発生するＸ線変換層にバイアス電圧が上部電極から供給され、Ｘ線変換層の直下のアクティブマトリックス基板に、行列状に配置された画素電極にＴＦＴのスイッチ素子が接続され、照射時に各ＴＦＴのスイッチ素子を、ゲートドライバ回路で、ＦＰＣ（柔軟性がある絶縁基板を用いたプリント配線板）を介して順次ＯＮすることにより、各画素の蓄積容量に蓄積された信号電荷が、増幅回路にＦＰＣを介して読出される。そして、増幅回路からＡ／Ｄ変換器を介して、ＴＶ回路に入力され、ＴＶ回路で信号処理が行なわれモニタにＸ線画像が表示される。 Next, components of the X-ray fluoroscopic apparatus will be described.
C-type holding arm 26 is suspended by the ceiling suspension unit 26a from the ceiling, ends FPD27 through the holding portion 27b and the X-ray tube device 25 is attached to the rotation radius R 26 is the distance from the rotation center to the floor H It is made smaller than 26, and can be rotated without interfering with the floor as shown in FIG.
The C-type holding arm 23 is supported by a floor-standing support portion (not shown), and FPDs 24 are attached to both ends via an X-ray tube device 22 and a holding portion (not shown). It can be taken from various angles to avoid interference.
Then, it is adjusted to {L 24 + L 22 } / L 22 = {L 27 + L 25 } / L 25 so that the X-ray imaging magnification is the same.
The X-ray tube devices 25 and 22 use a large current and a large output at the time of DA imaging and change the angle one after another, so that an X-ray tube having a large heat capacity and a high cooling rate is used. In a biplane cardiovascular device, X-rays are alternately irradiated during imaging.
The FPDs 27 and 24 have the I.D. I. It is a flat flat detector that does not have a large depth as in FIGS. Since it is flat, the rotation radius R 26 of the C-type holding arm 16 can be reduced.
The FPDs 27 and 24 of the flat panel detector are supplied with a bias voltage from the upper electrode to the X-ray conversion layer that generates charges by X-ray irradiation, and are arranged in a matrix on the active matrix substrate immediately below the X-ray conversion layer. A TFT switch element is connected to the pixel electrode, and each TFT switch element is sequentially turned on via an FPC (printed wiring board using a flexible insulating substrate) by a gate driver circuit during irradiation. The signal charge stored in the storage capacitor of the pixel is read out to the amplifier circuit via the FPC. Then, the signal is input from the amplifier circuit to the TV circuit via the A / D converter, signal processing is performed in the TV circuit, and an X-ray image is displayed on the monitor.

本Ｘ線透視撮影装置の操作について説明する。
２組のＣ型保持アーム１３、１６を有するＸ線透視撮影装置に対し、被検者を載せたカテーテル寝台がＣ型保持アーム２３、２６の回転中心に頭部側から挿入される。そして、操作者はＣ型保持アーム２３を電動で操作し、Ｘ線管装置２２装着のＣ型保持アーム２３を有する床置き式のＸ線透視撮影装置が、被検者の頭部方向からセットされる。被検者左右方向に大きく回転することができ、また、頭足方向に深い角度付けができる。そして、Ｃ型保持アーム２６を電動で操作し、Ｘ線管装置２５装着のＣ型保持アーム２６を有する天井懸垂部２６ａから懸垂されたＸ線透視撮影装置が、被検者の左側または右側方向からセットされる。そして、被検者の体軸回りに大きく回転することができ、また、被検者の頭足方向に深い角度付けができる。 An operation of the X-ray fluoroscopic apparatus will be described.
For an X-ray fluoroscopic apparatus having two sets of C-shaped holding arms 13 and 16, a catheter bed on which a subject is placed is inserted into the center of rotation of the C-type holding arms 23 and 26 from the head side. Then, the operator operates the C-type holding arm 23 electrically, and the floor-mounted X-ray fluoroscopic apparatus having the C-type holding arm 23 attached to the X-ray tube device 22 is set from the head direction of the subject. Is done. The subject can be greatly rotated in the left-right direction and can be deeply angled in the head-and-foot direction. Then, the X-ray fluoroscopic imaging apparatus suspended from the ceiling suspension part 26a having the C-type holding arm 26 attached to the X-ray tube device 25 is operated by electric operation of the C-type holding arm 26, and the left or right direction of the subject. Set from Then, the subject can be greatly rotated around the body axis of the subject, and a deep angle can be given in the direction of the head and feet of the subject.

本発明のＸ線透視撮影装置の実施方法を示した説明図である。（実施例１）It is explanatory drawing which showed the implementation method of the X-ray fluoroscope of this invention. (Example 1) 従来のバイプレーン型のＸ線透視撮影装置を示す図である。It is a figure which shows the conventional biplane type X-ray fluoroscopic imaging apparatus.

符号の説明Explanation of symbols

１２、１５、２２、２５ Ｘ線管装置
１４、１７ Ｉ．Ｉ．
１４ａ、１７ａ ＴＶカメラ
１３、１６、２３、２６ Ｃ型保持アーム
１６ａ、２６ａ 天井懸垂部
１７ｂ、２７ｂ 保持部
２４、２７ ＦＰＤ 12, 15, 22, 25 X-ray tube apparatus 14, 17 I.
14a, 17a TV camera 13, 16, 23, 26 C-type holding arm 16a, 26a Ceiling suspension part 17b, 27b Holding part 24, 27 FPD

Claims (2)

Ｘ線管装置とＸ線受像部をＣ型保持アームの両端に対向して取付け、Ｘ線管装置とＸ線受像部を結ぶＸ線軸を任意の角度に設定できるよう回転させる回転駆動部を備えたＸ線装置を２個組み合わせて設置し２方向同時撮影を行うＸ線透視撮影装置において、２個のＸ線装置におけるそれぞれのＣ型保持アームの半径を前記Ｃ型保持アームの回転中心の床間からの高さより小さく設定したことを特徴とするＸ線透視撮影装置。   The X-ray tube device and the X-ray image receiving unit are mounted opposite to both ends of the C-type holding arm, and a rotation driving unit is provided to rotate the X-ray axis connecting the X-ray tube device and the X-ray image receiving unit to an arbitrary angle. In the X-ray fluoroscopic apparatus that is installed in combination with two X-ray apparatuses and performs two-direction simultaneous imaging, the radius of each C-type holding arm in the two X-ray apparatuses is set to the floor at the rotation center of the C-type holding arm. An X-ray fluoroscopic apparatus characterized by being set to be smaller than the height from between. 前記Ｘ線受像部を平面型検出器にて構成したことを特徴とする請求項１記載のＸ線透視撮影装置。   The X-ray fluoroscopic apparatus according to claim 1, wherein the X-ray image receiving unit is configured by a planar detector.
JP2003368825A 2003-10-29 2003-10-29 Radiographic x-ray equipment Pending JP2005131001A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100864433B1 (en) 2008-03-03 2008-10-20 케이엠에이치 주식회사 Apparatus for inspecting using x-ray
JP2009050379A (en) * 2007-08-24 2009-03-12 Shimadzu Corp X-ray diagnostic apparatus
US11937961B2 (en) 2021-11-24 2024-03-26 GE Precision Healthcare LLC Universal positioning system for X-ray imaging system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009050379A (en) * 2007-08-24 2009-03-12 Shimadzu Corp X-ray diagnostic apparatus
KR100864433B1 (en) 2008-03-03 2008-10-20 케이엠에이치 주식회사 Apparatus for inspecting using x-ray
US11937961B2 (en) 2021-11-24 2024-03-26 GE Precision Healthcare LLC Universal positioning system for X-ray imaging system

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