JPH04292144A - X-ray fluoro-radiographic equipment - Google Patents
X-ray fluoro-radiographic equipmentInfo
- Publication number
- JPH04292144A JPH04292144A JP3054805A JP5480591A JPH04292144A JP H04292144 A JPH04292144 A JP H04292144A JP 3054805 A JP3054805 A JP 3054805A JP 5480591 A JP5480591 A JP 5480591A JP H04292144 A JPH04292144 A JP H04292144A
- Authority
- JP
- Japan
- Prior art keywords
- ray
- fluoroscopy
- filter section
- filter part
- imaging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002594 fluoroscopy Methods 0.000 claims abstract description 44
- 238000003384 imaging method Methods 0.000 claims description 37
- 230000005855 radiation Effects 0.000 abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 abstract description 5
- 238000012790 confirmation Methods 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000003313 weakening effect Effects 0.000 abstract 1
- 238000004846 x-ray emission Methods 0.000 description 8
- 238000002601 radiography Methods 0.000 description 5
- 230000002542 deteriorative effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 210000002438 upper gastrointestinal tract Anatomy 0.000 description 1
Landscapes
- Radiography Using Non-Light Waves (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、集団検診に有用なＸ線
透視撮影装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an X-ray fluoroscopy apparatus useful for mass medical examinations.
【０００２】0002
【従来の技術】従来、Ｘ線診断装置による消化管診断は
、Ｘ線透視撮影装置によりＸ線透視とＸ線撮影で行われ
る。すなわち、微小線量のＸ線透視で被検体の部位を確
認し、大線量のＸ線撮影でフィルム撮影を行う。ここで
、Ｘ線透視は管電圧８０ＫＶ，管電流１ｍＡ程度のＸ線
条件で、Ｘ線撮影は管電圧８０ＫＶ，管電流２００ｍＡ
，時間５０ｍｓ程度のＸ線条件で、各々行われる。2. Description of the Related Art Conventionally, gastrointestinal tract diagnosis using an X-ray diagnostic apparatus is performed using X-ray fluoroscopy and X-ray photography using an X-ray fluoroscopic imaging apparatus. That is, the part of the subject is confirmed using micro-dose X-ray fluoroscopy, and film photography is performed using high-dose X-ray photography. Here, X-ray fluoroscopy is performed under the X-ray conditions of a tube voltage of 80 KV and a tube current of approximately 1 mA, and X-ray photography is performed under the conditions of a tube voltage of 80 KV and a tube current of 200 mA.
, respectively, under X-ray conditions of approximately 50 ms.
【０００３】ところで集団検診においては、健康な人を
Ｘ線撮影することによる撮影の効果と被曝による不利益
が比較衡量され、Ｘ線撮影時のＸ線条件は管電圧８０Ｋ
Ｖ，管電流５０ｍＡ，時間４０ｍｓ程度と低く抑えられ
てきた。撮影枚数も一人当たり７枚程度に制限されるこ
とが多い。また集団検診における透視時間は１人当たり
約３分間である。By the way, in mass medical examinations, the effects of X-ray photography of healthy people and the disadvantages of radiation exposure are compared and balanced, and the X-ray conditions for X-ray photography are a tube voltage of 80K.
V, tube current of 50 mA, and time of about 40 ms, which have been kept low. The number of photos taken per person is often limited to about seven. Furthermore, the time required for fluoroscopy in group medical examinations is approximately 3 minutes per person.
【０００４】上記の例で、集団検診における一人当たり
の被曝量を計算すると、Ｘ線透視では１８０ｍＡｓ（＝
１ｍＡ×３分×６０秒）、Ｘ線撮影では１４ｍＡｓ（＝
５０ｍＡ×４０ｍｓ×７枚）となり、Ｘ線透視での被曝
量はＸ線撮影での被曝量の１２．８倍ということになる
。[0004] In the above example, when calculating the radiation exposure per person in a mass medical examination, it is 180 mAs (=
1mA x 3 minutes x 60 seconds), 14mAs for X-ray photography (=
50 mA x 40 ms x 7 images), and the amount of radiation exposure in X-ray fluoroscopy is 12.8 times that in X-ray photography.
【０００５】[0005]
【発明が解決しようとする課題】上記従来技術は、集団
検診における被曝量低減について、Ｘ線撮影についてだ
け配慮し、Ｘ線透視については配慮されていなかった。
しかも検診時の被曝量の比率が、主として被検体の部位
確認のためのＸ線透視について９割以上（＝１８０／（
１８０＋１４））と極めて大きく、総被曝量も多くなる
という問題点があった。Problems to be Solved by the Invention The above-mentioned prior art takes into account only X-ray photography, but not X-ray fluoroscopy, in order to reduce the amount of radiation exposure in mass medical examinations. Furthermore, the ratio of radiation exposure during medical examinations is over 90% (=180/(
180+14)), which is extremely large, and the problem is that the total radiation exposure is also large.
【０００６】本発明の目的は、Ｘ線透視の被曝量を低減
し、フィルム撮影像の画質を劣化させることなく、検診
時の総被曝量を大幅に低減することができ、しかもその
ために何等操作上の手間を要することのないＸ線透視撮
影装置を提供することにある。An object of the present invention is to reduce the amount of radiation exposure during X-ray fluoroscopy, to significantly reduce the total amount of radiation exposure during medical examinations without deteriorating the image quality of film-captured images, and to do so without requiring any operations. It is an object of the present invention to provide an X-ray fluoroscopic imaging device that does not require the above-mentioned trouble.
【０００７】[0007]
【課題を解決するための手段】上記目的は、フィルタ部
又は無フィルタ部からなる撮影用Ｘ線フィルタ部と、こ
の撮影用Ｘ線フィルタ部よりもＸ線エネルギの減弱率の
高いフィルタ部からなる透視用Ｘ線フィルタ部と、撮影
時には前記撮影用Ｘ線フィルタ部を、透視時には前記透
視用Ｘ線フィルタ部を、被検体へのＸ線照射経路中に切
換え介在させるＸ線フィルタ部駆動装置とを備えてなる
集団検診用フィルタ装置を設けることにより達成される
。[Means for Solving the Problems] The above object consists of an X-ray filter section for imaging consisting of a filter section or a non-filter section, and a filter section having a higher attenuation rate of X-ray energy than the X-ray filter section for imaging. an X-ray filter section for fluoroscopy, and an X-ray filter section drive device that switches and interposes the X-ray filter section for radiography during imaging and the X-ray filter section for fluoroscopy during an X-ray irradiation path to a subject; This is achieved by providing a filter device for mass medical examinations comprising:
【０００８】[0008]
【作用】前記集団検診用フィルタ装置のＸ線フィルタ部
駆動装置は、撮影時には撮影用Ｘ線フィルタ部を、透視
時には撮影用Ｘ線フィルタ部よりもＸ線エネルギの減弱
率の高いフィルタ部からなる透視用Ｘ線フィルタ部を、
被検体へのＸ線照射経路中に、主としてＸ線管のＸ線放
射口を覆う位置に、切換え介在させる。[Function] The X-ray filter unit driving device of the filter device for group medical examinations comprises a radiographing X-ray filter unit during radiography, and a filter unit having a higher attenuation rate of X-ray energy than the radiographing X-ray filter unit during fluoroscopy. The X-ray filter section for fluoroscopy,
It is selectively interposed in the X-ray irradiation path to the subject at a position that mainly covers the X-ray radiation opening of the X-ray tube.
【０００９】ここで、透視用Ｘ線フィルタ部のＸ線エネ
ルギの減弱率は撮影用Ｘ線フィルタ部のそれより高けれ
ばよく、換言すれば撮影用Ｘ線フィルタ部のＸ線エネル
ギの減弱率は従前通りでよい。[0009] Here, it is sufficient that the attenuation rate of X-ray energy in the X-ray filter section for fluoroscopy is higher than that of the X-ray filter section for radiography; in other words, the attenuation rate of X-ray energy in the X-ray filter section for radiography is It's fine as usual.
【００１０】これにより、フィルム撮影像の画質を劣化
させることなく、被曝量の比率の極めて大きいＸ線透視
での被曝量が低減され、検診時の総被曝量が大幅に低減
される。しかも、撮影用Ｘ線フィルタ部と透視用Ｘ線フ
ィルタ部の切換えは、例えば撮影開始信号や透視撮影切
換信号などでＸ線フィルタ部駆動装置を制御することで
できるので、何等操作上の手間を要することがない。[0010] As a result, the amount of radiation exposure in X-ray fluoroscopy, which has an extremely large proportion of radiation exposure, can be reduced without deteriorating the image quality of film-captured images, and the total amount of radiation exposure during medical examinations can be significantly reduced. Moreover, switching between the X-ray filter section for imaging and the X-ray filter section for fluoroscopy can be done by controlling the X-ray filter section drive device using, for example, an imaging start signal or a fluoroscopy imaging switching signal, so there is no need for operational effort. There's nothing necessary.
【００１１】[0011]
【実施例】以下、図面を参照して本発明の実施例を説明
する。Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.
【００１２】図１は、本発明によるＸ線透視撮影装置の
一実施例を示す構成図である。この図１において、１は
Ｘ線管、２はこのＸ線管２からのＸ線が曝射される被検
体、３はこの被検体２が寝載された天板、４はＸ線像を
可視光像に変換するイメージインテンシファイア（以下
、Ｉ．Ｉ．という。）である。FIG. 1 is a block diagram showing an embodiment of an X-ray fluoroscopic imaging apparatus according to the present invention. In this figure, 1 is an X-ray tube, 2 is a subject to whom X-rays from this X-ray tube 2 are irradiated, 3 is a top plate on which this subject 2 is placed, and 4 is an X-ray image. This is an image intensifier (hereinafter referred to as I.I.) that converts it into a visible light image.
【００１３】また、５はＩ．Ｉ．４からの可視光像を分
配するディストリビュータ、６はディストリビュータ５
からの可視光像をフィルム撮影するスポットカメラ、７
はディストリビュータ５からの可視光像を撮像するテレ
ビカメラである。Further, 5 is I. I. A distributor that distributes visible light images from 4; 6 is a distributor 5;
A spot camera that captures visible light images from 7
is a television camera that captures visible light images from the distributor 5.
【００１４】更に、８は透視及び撮影時のＸ線条件など
を制御するＸ線制御回路、９はこの透視撮影制御回路８
で制御され、前記Ｘ線管１に電源を与えてＸ線を放射さ
せる高電圧発生装置である。Furthermore, 8 is an X-ray control circuit for controlling X-ray conditions during fluoroscopy and imaging, and 9 is this fluoroscopic imaging control circuit 8.
This is a high voltage generator that is controlled by the X-ray tube 1 and supplies power to the X-ray tube 1 to emit X-rays.
【００１５】以上は、従来装置と特に変わるところはな
く、本発明ではこのような構成に集団検診用フィルタ装
置１０を付加したものである。The above configuration is not particularly different from the conventional device, and the present invention adds a filter device 10 for mass medical examination to such a configuration.
【００１６】この集団検診用フィルタ装置１０は、フィ
ルタ部又は無フィルタ部からなる撮影用Ｘ線フィルタ部
１０ａと、この撮影用Ｘ線フィルタ部１０ａよりもＸ線
エネルギの減弱率の高いフィルタ部からなる透視用Ｘ線
フィルタ部１０ｂと、撮影時には前記撮影用Ｘ線フィル
タ部１０ａを、透視時には前記透視用Ｘ線フィルタ部１
０ｂを、前記被検体２へのＸ線照射経路中に切換え介在
させるＸ線フィルタ部駆動装置１０ｃとを備えてなる。This filter device 10 for mass medical examination consists of an X-ray filter section 10a for imaging consisting of a filter section or a non-filter section, and a filter section having a higher attenuation rate of X-ray energy than the X-ray filter section 10a for imaging. The X-ray filter section 10b for fluoroscopy, the X-ray filter section 10a for radiography during imaging, and the X-ray filter section 1 for fluoroscopy during fluoroscopy.
and an X-ray filter unit driving device 10c that switches and interposes the X-ray filter 0b in the X-ray irradiation path to the subject 2.
【００１７】図示例では、撮影用Ｘ線フィルタ部１０ａ
は何等フィルタの存在しない無フィルタ部からなり、ま
た透視用Ｘ線フィルタ部１０ｂは低エネルギ成分（いわ
ゆる軟線）をカットする特性をもつ。なお、撮影用Ｘ線
フィルタ部１０ａをフィルタ部とするときは、得られる
画像のコントラストを上げるため上記軟線を多く通すも
のが用いられ、フィルム撮影像の画質を一定レベル以上
に維持する。In the illustrated example, the imaging X-ray filter section 10a
consists of a non-filtered section without any filter, and the fluoroscopy X-ray filter section 10b has a characteristic of cutting low energy components (so-called soft lines). When the photographing X-ray filter section 10a is used as a filter section, one that allows many of the soft lines to pass through is used in order to increase the contrast of the obtained image, thereby maintaining the image quality of the film photographed image above a certain level.
【００１８】また、これら撮影用Ｘ線フィルタ部１０ａ
と透視用Ｘ線フィルタ部１０ｂとは、Ｘ線照射経路中に
、ここではＸ線管１のＸ線放射口１ａに近接し、かつそ
のＸ線放射口１ａを覆う位置に、ベルト１０ｄを走行さ
せることにより交互に移動できるように配置されている
。そして、図示するように常時（透視時を含む。）は透
視用Ｘ線フィルタ部１０ｂが上記放射口１ａを覆う位置
にあって被曝量を低減させ、撮影時はＸ線フィルタ部駆
動装置１０ｃが作動してベルト１０ｄが図中矢印方向に
走行し、撮影用Ｘ線フィルタ部１０ａが上記放射口１ａ
を覆う位置に移動させる（透視用Ｘ線フィルタ部１０ｂ
が除去される）ように構成されている。撮影用Ｘ線フィ
ルタ部１０ａの上記放射口１ａを覆う位置への移動制御
は、前記Ｘ線制御回路８からの撮影開始信号（Ｘ線管ロ
ータアップ信号）ｓ１の立ち上がりに同期してＸ線フィ
ルタ部駆動装置１０ｃを作動させることにより行う。[0018] Furthermore, these imaging X-ray filter sections 10a
The X-ray filter section 10b for fluoroscopy is positioned on a belt 10d in the X-ray irradiation path at a position close to the X-ray emission port 1a of the X-ray tube 1 and covering the X-ray emission port 1a. They are arranged so that they can be moved alternately by As shown in the figure, at all times (including during fluoroscopy), the fluoroscopy X-ray filter section 10b is in a position covering the radiation port 1a to reduce the amount of radiation exposure, and during imaging, the X-ray filter section driving device 10c is When the belt 10d is activated, the belt 10d runs in the direction of the arrow in the figure, and the imaging X-ray filter section 10a is connected to the radiation port 1a.
(X-ray filter section 10b for fluoroscopy)
removed). The movement of the imaging X-ray filter unit 10a to the position covering the radiation port 1a is controlled in synchronization with the rise of the imaging start signal (X-ray tube rotor up signal) s1 from the X-ray control circuit 8. This is done by operating the section drive device 10c.
【００１９】なお、撮影が終わればＸ線フィルタ部駆動
装置１０ｃが復帰動作し、撮影用Ｘ線フィルタ部１０ａ
及び透視用Ｘ線フィルタ部１０ｂは図示位置に復帰移動
する。Note that when the imaging is completed, the X-ray filter unit driving device 10c returns to its original state, and the X-ray filter unit 10a for imaging is activated.
The X-ray filter section 10b for fluoroscopy returns to the illustrated position.
【００２０】次に動作について説明する。通常の上部消
化管の集団検診においては、Ｘ線管１より放射されたＸ
線は被検体２と天板３を透過し、Ｉ．Ｉ．４に入射して
可視光に変換される。Ｉ．Ｉ．４より出射される可視光
像は、ディストリビュータ５でスポットカメラ６とテレ
ビカメラ７に分配される。Next, the operation will be explained. In normal mass examinations of the upper gastrointestinal tract, X-rays emitted from X-ray tube 1 are
The line passes through the subject 2 and the top plate 3, and the I. I. 4 and is converted into visible light. I. I. A visible light image emitted from 4 is distributed to a spot camera 6 and a television camera 7 by a distributor 5.
【００２１】これにより、スポットカメラ６による撮影
とテレビカメラ７による透視が可能になり、テレビカメ
ラ７による透視で部位の確認を行い、スポットカメラ６
によりフィルム撮影が行われる。[0021] This allows photographing by the spot camera 6 and fluoroscopy by the television camera 7.
Film photography is performed.
【００２２】ここで本発明では、Ｘ線管１のＸ線放射口
１ａを覆う位置に撮影用Ｘ線フィルタ部１０ａと透視用
Ｘ線フィルタ部１０ｂとが切換え移動可能の集団検診用
フィルタ装置１０が設けられ、撮影時と透視時とでＸ線
透過させるフィルタ部１０ａ，１０ｂを切り換えている
。いま、透視用Ｘ線フィルタ部１０ｂとして例えば厚さ
３ｍｍのアルミニューム板を用い、透視時にこれを上記
Ｘ線放射口１ａを覆う位置に置くと、これを置かないと
きに比べて低エネルギの軟線が除去できるので、被検体
２の表面被曝は５０％程度の低減が期待できる。低エネ
ルギの軟線除去で線質が堅くなると、画像のコントラス
トが低下するが透視の主目的である撮影部位の確認のた
めには充分である。Here, in the present invention, there is provided a filter device 10 for mass medical examination in which an X-ray filter section 10a for imaging and an X-ray filter section 10b for fluoroscopy can be switched and moved to a position covering the X-ray emission port 1a of the X-ray tube 1. is provided, and the filter sections 10a and 10b that transmit X-rays are switched between the time of imaging and the time of fluoroscopy. Now, if an aluminum plate with a thickness of 3 mm, for example, is used as the X-ray filter section 10b for fluoroscopy, and it is placed in a position to cover the X-ray emission port 1a during fluoroscopy, soft rays with lower energy will be produced than when this is not placed. can be removed, the surface exposure of the subject 2 can be expected to be reduced by about 50%. When the radiation quality becomes hard due to low-energy soft radiation removal, the contrast of the image decreases, but it is sufficient for confirming the area to be imaged, which is the main purpose of fluoroscopy.
【００２３】一方、撮影時は透視用Ｘ線フィルタ部１０
ｂを移動させ、すなわち上記アルミニューム板がＸ線放
射口１ａを覆う位置にない状態とし、撮影を行う。これ
により低エネルギの軟線は除去されず、コントラストの
ある画像を得ることができる。この場合、被曝量は上記
アルミニューム板がある場合に比べて多くなるが、前述
したように総被曝量の９割以上が透視によるので、全体
に占める被曝量の増分は僅かであり、その量は従来装置
による撮影時と同様である。On the other hand, during imaging, the fluoroscopy X-ray filter section 10
b is moved, that is, the aluminum plate is not in a position covering the X-ray emission port 1a, and imaging is performed. As a result, low-energy soft lines are not removed, and an image with contrast can be obtained. In this case, the amount of radiation exposure will be higher than when the aluminum plate is used, but as mentioned above, more than 90% of the total radiation exposure comes from fluoroscopy, so the increase in radiation exposure to the total is small; is the same as when photographing with a conventional device.
【００２４】上述実施例では、撮影用Ｘ線フィルタ部１
０ａと透視用Ｘ線フィルタ部１０ｂとは、Ｘ線管１のＸ
線放射口１ａを覆う位置に、交互に移動できるように配
置したが、被検体２へのＸ線照射経路中に切換え介在可
能にすればよい。上述実施例のように、Ｘ線管１のＸ線
放射口１ａの近接した位置で切換え介在可能にした場合
には、Ｘ線フィルタ部１０ａ，１０ｂを５ｃｍ程度、移
動するだけで充分であり、それらの細かい位置制御は不
要である。（Ｘ線フィルタ部１０ａ，１０ｂをＸ線放射
口１ａから離れた位置に置く場合には、その大きさや位
置につき被検体２の視野を考慮しなければならないが、
上述実施例によればＸ線放射口１ａを単に全開又は全閉
するように設定すればよい。）また上述実施例では、撮
影用Ｘ線フィルタ部１０ａと透視用Ｘ線フィルタ部１０
ｂとをベルト１０ｄ上に設け、そのベルト１０ｄを所定
距離走行させることにより被検体２へのＸ線照射経路中
に切換え介在するようにしたが、上記フィルタ部１０ａ
，１０ｂを円板上に設け、その円板を例えば１８０度回
転させることにより上記Ｘ線照射経路中に切換え介在す
るようにしてもよい。In the above embodiment, the imaging X-ray filter section 1
0a and the X-ray filter section 10b for X-ray tube 1.
Although they are arranged so as to be able to alternately move to a position covering the radiation emitting port 1a, it may be possible to switch between them during the X-ray irradiation path to the subject 2. As in the above-mentioned embodiment, if switching is enabled at a position close to the X-ray emission port 1a of the X-ray tube 1, it is sufficient to move the X-ray filter sections 10a and 10b by about 5 cm. Their fine positional control is not necessary. (If the X-ray filter sections 10a and 10b are placed at a position away from the X-ray emission port 1a, the field of view of the subject 2 must be taken into account regarding their size and position.
According to the embodiment described above, the X-ray emission port 1a may be simply set to be fully open or fully closed. ) Furthermore, in the above embodiment, the imaging X-ray filter section 10a and the fluoroscopy X-ray filter section 10a
b is provided on the belt 10d, and by running the belt 10d for a predetermined distance, the filter part 10a is switched and interposed in the X-ray irradiation path to the subject 2.
, 10b may be provided on a disk, and the disk may be rotated, for example, by 180 degrees so as to be switched into the X-ray irradiation path.
【００２５】更に上述実施例では、上記フィルタ部１０
ａ，１０ｂを各１箇所ずつ設けたが、これのみに限定さ
れることもない。Furthermore, in the above embodiment, the filter section 10
Although one location a and one location 10b are provided, the present invention is not limited to this.
【００２６】[0026]
【発明の効果】以上説明したように本発明によれば、撮
影時には撮影用Ｘ線フィルタ部を、透視時には撮影用Ｘ
線フィルタ部よりもＸ線エネルギの減弱率の高いフィル
タ部からなる透視用Ｘ線フィルタ部を、Ｘ線フィルタ部
駆動装置により被検体へのＸ線照射経路中に切換え介在
させるようにしたので、Ｘ線透視の被曝量を低減し、フ
ィルム撮影像の画質を劣化させることなく、検診時の総
被曝量を大幅に低減することができ、しかもそのために
何等操作上の手間、例えばＸ線条件の変更操作などを要
することがないなどの効果がある。Effects of the Invention As explained above, according to the present invention, the imaging X-ray filter section is used during imaging, and the imaging X-ray filter section is used during fluoroscopy.
The X-ray filter section for fluoroscopy, which is composed of a filter section having a higher attenuation rate of X-ray energy than the ray filter section, is switched and interposed in the X-ray irradiation path to the subject by the X-ray filter section drive device. By reducing the amount of radiation exposure during X-ray fluoroscopy, the total amount of radiation exposure during medical examinations can be significantly reduced without deteriorating the image quality of film-captured images. This has the advantage that no change operation is required.
【図１】本発明装置の一実施例を示す構成図である。FIG. 1 is a configuration diagram showing an embodiment of the device of the present invention.
１ Ｘ線管 ２ 被検体 ３ 天板 ４ Ｉ．Ｉ． ５ ディストリビュータ ６ スポットカメラ ７ テレビカメラ ８ Ｘ線制御回路 ９ 高電圧発生装置 １０ 集団検診用フィルタ装置 １０ａ 撮影用Ｘ線フィルタ部 １０ｂ 透視用Ｘ線フィルタ部 １０ｃ Ｘ線フィルタ部駆動装置 １０ｄ ベルト 1 X-ray tube 2 Subject ３ Top plate 4 I. I. 5 Distributor 6 Spot camera 7 TV camera 8 X-ray control circuit 9 High voltage generator 10 Filter device for mass medical examination 10a Imaging X-ray filter section 10b X-ray filter section for fluoroscopy 10c X-ray filter unit drive device 10d belt
Claims (1)
撮影用Ｘ線フィルタ部と、この撮影用Ｘ線フィルタ部よ
りもＸ線エネルギの減弱率の高いフィルタ部からなる透
視用Ｘ線フィルタ部と、撮影時には前記撮影用Ｘ線フィ
ルタ部を、透視時には前記透視用Ｘ線フィルタ部を、被
検体へのＸ線照射経路中に切換え介在させるＸ線フィル
タ部駆動装置とを備えてなる集団検診用フィルタ装置を
具備することを特徴とするＸ線透視撮影装置。1. An X-ray filter section for imaging consisting of a filter section or a non-filter section; an X-ray filter section for fluoroscopy consisting of a filter section having a higher attenuation rate of X-ray energy than the X-ray filter section for imaging; A group examination filter comprising: an X-ray filter unit driving device that switches and interposes the imaging X-ray filter unit during imaging and the fluoroscopy X-ray filter unit during fluoroscopy in the X-ray irradiation path to the subject. An X-ray fluoroscopic imaging device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3054805A JPH04292144A (en) | 1991-03-19 | 1991-03-19 | X-ray fluoro-radiographic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3054805A JPH04292144A (en) | 1991-03-19 | 1991-03-19 | X-ray fluoro-radiographic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04292144A true JPH04292144A (en) | 1992-10-16 |
Family
ID=12980953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3054805A Pending JPH04292144A (en) | 1991-03-19 | 1991-03-19 | X-ray fluoro-radiographic equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04292144A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990068721A (en) * | 1999-06-14 | 1999-09-06 | 김민수 | microfilm camera(for medical diagnostic X-ray unit) |
| JP2014200306A (en) * | 2013-04-01 | 2014-10-27 | コニカミノルタ株式会社 | Radiation image capturing system |
| CN106340340A (en) * | 2015-07-07 | 2017-01-18 | 通用电气公司 | X-Ray Filtration |
-
1991
- 1991-03-19 JP JP3054805A patent/JPH04292144A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990068721A (en) * | 1999-06-14 | 1999-09-06 | 김민수 | microfilm camera(for medical diagnostic X-ray unit) |
| JP2014200306A (en) * | 2013-04-01 | 2014-10-27 | コニカミノルタ株式会社 | Radiation image capturing system |
| CN106340340A (en) * | 2015-07-07 | 2017-01-18 | 通用电气公司 | X-Ray Filtration |
| CN106340340B (en) * | 2015-07-07 | 2021-07-27 | 通用电气公司 | X-ray filtering |
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