JPH078479A - X-ray diagnostic device - Google Patents
X-ray diagnostic deviceInfo
- Publication number
- JPH078479A JPH078479A JP5144786A JP14478693A JPH078479A JP H078479 A JPH078479 A JP H078479A JP 5144786 A JP5144786 A JP 5144786A JP 14478693 A JP14478693 A JP 14478693A JP H078479 A JPH078479 A JP H078479A
- Authority
- JP
- Japan
- Prior art keywords
- patient
- sensor
- processor
- ray
- detecting
- 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
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 17
- 230000000241 respiratory effect Effects 0.000 claims description 23
- 238000003384 imaging method Methods 0.000 claims description 11
- 239000000470 constituent Substances 0.000 claims description 8
- 230000001678 irradiating effect Effects 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 3
- 239000002872 contrast media Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、患者の胸部等のＤＳＡ
撮影を行うＸ線診断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 a DSA of a patient's chest or the like.
The present invention relates to an X-ray diagnostic apparatus that performs imaging.
【０００２】[0002]
【従来の技術】従来より、胸部等のＤＳＡ撮影法とし
て、呼吸波形を検出し、その波形に同期させてＸ線撮影
影行う方法がある。この方法により、呼吸の影響をなく
することができるので、造影剤の注入前後のＸ線撮影
を、必要最低限の回数におさえることができ、患者に対
する負担を軽減することが可能となる。そして、呼吸波
形同期撮影を行うことにより、Ｘ線曝射量が減る。呼吸
波形を得る方法としては、従来では、患者の胸部を圧迫
させて、圧力センサにより患者の肋骨の動き等を検出し
て呼吸波形を得ていた。2. Description of the Related Art Conventionally, as a DSA imaging method for the chest and the like, there is a method for detecting a respiratory waveform and performing an X-ray imaging shadow in synchronization with the waveform. By this method, the influence of respiration can be eliminated, so that X-ray imaging before and after the injection of the contrast agent can be suppressed to the necessary minimum number, and the burden on the patient can be reduced. Then, the X-ray exposure dose is reduced by performing the respiratory waveform synchronized imaging. As a method of obtaining a respiratory waveform, conventionally, the chest of the patient is pressed and the respiratory waveform is obtained by detecting the movement of the patient's ribs and the like with a pressure sensor.
【０００３】図２は従来のＸ線診断装置を示す構成図で
ある。１は所定の画像処理を行うＤＦプロセッサ、２は
そのＤＦプロセッサ１により制御されて高電圧を発生す
る高電圧発生装置、３はその高電圧発生装置２で発生し
た高電圧によりＸ線を曝射するＸ線管、７はそのＸ線管
３よりＸ線が曝射される患者、４はその患者７を透過し
たＸ線を受けて光信号に変換するＩ．Ｉ．（イメージイ
ンテンシファイヤ）、５はそのＩ．Ｉ．４で変換した光
信号を伝達するレンズ等の光学系、６はその光学系５を
伝達した光信号を電気信号に変換して上記ＤＦプロセッ
サ１に出力するＴＶカメラ、８は患者７の胸部に装着さ
れて患者７の呼吸に同期した呼吸同期信号をＤＦプロセ
ッサ１に出力する圧力センサである。FIG. 2 is a block diagram showing a conventional X-ray diagnostic apparatus. Reference numeral 1 is a DF processor for performing a predetermined image processing, 2 is a high voltage generator controlled by the DF processor 1 to generate a high voltage, and 3 is an X-ray irradiating by a high voltage generated by the high voltage generator 2. X-ray tube, 7 is a patient to whom X-rays are emitted from the X-ray tube 3, and 4 is an I.V. I. (Image Intensifier), 5 is I. I. An optical system such as a lens for transmitting the optical signal converted in 4, a TV camera 6 for converting the optical signal transmitted in the optical system 5 into an electric signal and outputting the electric signal to the DF processor 1, and 8 for a chest of the patient 7. It is a pressure sensor that is worn and outputs to the DF processor 1 a breathing synchronization signal that is synchronized with the breathing of the patient 7.
【０００４】次に動作について説明する。Ｘ線管３はＸ
線を患者７に曝射する。その患者７を透過したＸ線は
Ｉ．Ｉ．４により光信号に変換される。そのＩ．Ｉ．４
で変換された光信号はレンズ等の光学系５を介してＴＶ
カメラ６に伝達され、そのカメラ６によりその光信号が
電気信号に変換されて上記ＤＦプロセッサ１に出力さ
れ、ＤＦプロセッサ１で所定の画像処理が施され、図示
しない表示用モニタに表示される。一方、患者７の胸部
には圧力センサ８が装着されて患者７の呼吸に同期した
呼吸同期信号がＤＦプロセッサ１に出力される。そのＤ
Ｆプロセッサ１は、上記呼吸同期信号に従って高電圧発
生装置２の高電圧発生のタイミングを制御する。その高
電圧によりＸ線管３はＸ線を曝射する。即ち、呼吸同期
信号に基づいてＸ線が曝射され、Ｘ線撮影が行なわれ
る。Next, the operation will be described. X-ray tube 3 is X
Expose the wire to patient 7. The X-ray transmitted through the patient 7 is I.P. I. It is converted into an optical signal by 4. That I. I. Four
The optical signal converted by the TV is transmitted through the optical system 5 such as a lens to the TV.
The light signal is transmitted to the camera 6, the optical signal is converted into an electric signal by the camera 6, and the electric signal is output to the DF processor 1. The DF processor 1 performs predetermined image processing and displays the image on a display monitor (not shown). On the other hand, a pressure sensor 8 is attached to the chest of the patient 7, and a breathing synchronization signal synchronized with the breathing of the patient 7 is output to the DF processor 1. That D
The F processor 1 controls the high voltage generation timing of the high voltage generator 2 in accordance with the respiratory synchronization signal. The high voltage causes the X-ray tube 3 to emit X-rays. That is, X-rays are emitted on the basis of the respiratory synchronization signal, and X-ray imaging is performed.
【０００５】[0005]
【発明が解決しようとする課題】従来例の方法では、圧
力センサ８により患者の肋骨の動き等を検出するもので
あり、患者の胸部を圧力センサ８で圧迫するため、患者
に対する負担が生じる。また、肋骨等の動きが少ない患
者に対しては、呼吸波形の精度が低下する。In the conventional method, the pressure sensor 8 detects the movement of the patient's ribs and the like, and the chest of the patient is pressed by the pressure sensor 8, which causes a burden on the patient. In addition, the accuracy of the respiratory waveform is reduced for patients who have little movement of ribs and the like.
【０００６】本発明はこのような状況に鑑みてなされた
ものであり、患者に対する負担を軽減して、胸部のＤＳ
Ａ撮影を行い、肋骨等の動きが少ない患者に対しても、
呼吸波形の精度を向上させることを目的とする。The present invention has been made in view of such a situation, and reduces the burden on the patient to reduce the DS of the chest.
Even for patients who have taken A and have little movement of ribs,
The purpose is to improve the accuracy of the respiratory waveform.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するた
め、本発明では、患者の呼吸状態を検出するセンサを備
え、その呼吸状態に同期させて、Ｘ線撮影を行うＸ線診
断装置において、上記センサが、上記呼吸状態に応じて
変化する空気中の空気構成物濃度を検出するセンサによ
って構成されたことを特徴とする。In order to achieve the above object, the present invention provides an X-ray diagnostic apparatus including a sensor for detecting a respiratory condition of a patient and performing X-ray imaging in synchronization with the respiratory condition, It is characterized in that the sensor is constituted by a sensor that detects an air constituent concentration in the air which changes according to the breathing state.
【０００８】[0008]
【作用】本発明のＸ線診断装置においては、空気構成物
濃度を検出するセンサにより、患者の呼吸状態に応じて
変化する空気中の空気構成物濃度を検出し患者の呼吸波
形を検出している。そのため患者の胸部を圧迫せずに呼
吸波形を測定することができる。In the X-ray diagnostic apparatus of the present invention, the sensor for detecting the concentration of air constituents detects the concentration of air constituents in the air which changes according to the respiratory condition of the patient and detects the respiratory waveform of the patient. There is. Therefore, the respiratory waveform can be measured without compressing the patient's chest.
【０００９】[0009]
【実施例】以下、本発明の好ましい実施例について、図
面を参照しながら説明する。図１は、本発明の方法によ
る一実施例におけるＸ線診断装置を示す構成図である。
図において、９は患者の鼻孔部付近の空気構成物の濃度
を検出するセンサであり、例えばＣＯ2 濃度を検出する
ＣＯ2 センサである。このＣＯ2 センサ９で検出された
ＣＯ2 濃度はＤＦプロセッサ１に入力される。なお、従
来例と同一符号は同一要素であり、説明は省略する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an X-ray diagnostic apparatus in one embodiment according to the method of the present invention.
In FIG, 9 is a sensor for detecting the concentration of air constituents in the vicinity of nostrils of the patient, a CO 2 sensor for detecting the example CO 2 concentration. The detected CO 2 concentration in a CO 2 sensor 9 is input to the DF processor 1. The same reference numerals as those of the conventional example are the same elements, and the description thereof will be omitted.
【００１０】次に、その動作について説明する。ＣＯ2
センサ９は患者の鼻孔部付近のＣＯ2 濃度を検出してＤ
Ｆプロセッサ１に伝達する。そのＤＦプロセッサ１によ
って患者７の呼吸状態（呼気か吸気かの区別）が認識さ
れる。そして、その呼吸状態に基づいてＤＦプロセッサ
１は高電圧発生装置２の高電圧発生のタイミングを制御
する。この高電圧を受けてＸ線管３はＸ線を曝射する。
以上のことにより、呼吸状態に基づいてＸ線曝射のタイ
ミング、即ち、Ｘ線撮影のタイミングが制御される。Ｄ
Ｆプロセッサ１により、患者７の呼吸状態によってＸ線
撮影のタイミングが決定されるので、患者７に造影剤を
注入した前後の必要な画像のみの撮影を行うことができ
る。Next, the operation will be described. CO 2
The sensor 9 detects the CO 2 concentration near the nostril of the patient and
It is transmitted to the F processor 1. The DF processor 1 recognizes the breathing state (discrimination between exhalation and inspiration) of the patient 7. Then, the DF processor 1 controls the high voltage generation timing of the high voltage generator 2 based on the breathing state. Upon receiving this high voltage, the X-ray tube 3 emits X-rays.
As described above, the timing of X-ray exposure, that is, the timing of X-ray imaging is controlled based on the breathing state. D
Since the X-ray imaging timing is determined by the F processor 1 depending on the breathing state of the patient 7, only necessary images before and after the injection of the contrast agent into the patient 7 can be taken.
【００１１】なお、ＣＯ2 センサ９の形状及び機能につ
いては、マイク状のもの、鼻と口を覆うマスクタイプの
もの等、いろいろ考えられる。以上の説明からも明らか
なように、本発明は、患者の呼吸状態を検出するセンサ
が、患者の呼吸状態に応じて変化する空気中の空気構成
物濃度を検出するセンサによって構成されたものであ
り、例えば患者の呼吸状態に応じて変化する空気中のＣ
Ｏ2 濃度を検出するＣＯ2 センサ９によって構成された
ものである。本発明では、患者の胸部を圧迫する圧力セ
ンサを使用せず、患者の鼻孔部付近に、空気構成物の濃
度を検出するセンサ、例えばＣＯ2 センサを設置するこ
とによって、呼吸波形を測定し、Ｘ線撮影のタイミング
はＣＯ2 センサ９の出力に基づいて制御されるので、患
者に対する負担が軽減される。また、肋骨等の動きが少
ない患者に対しても有効なので、呼吸波形の精度が向上
する。さらに、患者の胸部を圧迫しないため、通常に近
い形の呼吸が可能となり、呼吸波形の測定結果を他の目
的に生かせる。Various shapes and functions of the CO 2 sensor 9 can be considered, such as a microphone type and a mask type that covers the nose and mouth. As is clear from the above description, the present invention is a sensor for detecting a respiratory state of a patient, which is configured by a sensor for detecting the concentration of air constituents in the air that changes according to the respiratory state of the patient. Yes, for example, C in the air that changes according to the respiratory condition of the patient
The CO 2 sensor 9 detects the O 2 concentration. In the present invention, the respiratory waveform is measured by installing a sensor for detecting the concentration of air constituents, for example, a CO 2 sensor, in the vicinity of the nostril of the patient without using a pressure sensor that presses the patient's chest, Since the timing of X-ray imaging is controlled based on the output of the CO 2 sensor 9, the burden on the patient is reduced. Further, since it is effective for a patient who has little movement of ribs, the accuracy of the respiratory waveform is improved. Furthermore, since the chest of the patient is not pressed, a breathing of a shape close to normal is possible, and the measurement result of the respiratory waveform can be used for other purposes.
【００１２】[0012]
【発明の効果】以上のように、本発明のＸ線診断装置に
よれば、患者の鼻孔部付近に、空気構成物濃度を検出す
るセンサを設置することによって、呼吸波形を測定して
いるので、患者の胸部を圧迫することがなく、患者に対
する負担が軽減される。また、肋骨等の動きが少ない患
者に対しても有効なので、呼吸波形の精度が向上する。
さらに、患者の胸部を圧迫しないため、通常に近い形の
呼吸が可能となり、呼吸波形の測定結果を他の目的に生
かせる。As described above, according to the X-ray diagnostic apparatus of the present invention, the respiratory waveform is measured by installing the sensor for detecting the concentration of the air constituents in the vicinity of the nostril of the patient. The burden on the patient is reduced without pressing the patient's chest. Further, since it is effective for a patient who has little movement of ribs, the accuracy of the respiratory waveform is improved.
Furthermore, since the chest of the patient is not pressed, a breathing of a shape close to normal is possible, and the measurement result of the respiratory waveform can be used for other purposes.
【図１】本発明のＸ線診断装置の一実施例の構成を示し
た構成図である。FIG. 1 is a configuration diagram showing a configuration of an embodiment of an X-ray diagnostic apparatus of the present invention.
【図２】従来のＸ線診断装置の一例の構成を示す構成図
である。FIG. 2 is a configuration diagram showing an example of a configuration of a conventional X-ray diagnostic apparatus.
１ ＤＦプロセッサ ２ 高電圧発生装置 ３ Ｘ線管 ４ Ｉ．Ｉ．（イメージインテンシファイヤ） ５ 光学系 ６ ＴＶカメラ ７ 患者 ９ ＣＯ2 センサ1 DF processor 2 high voltage generator 3 X-ray tube 4 I.D. I. (Image intensifier) 5 Optical system 6 TV camera 7 Patient 9 CO 2 sensor
Claims (2)
え、その呼吸状態に同期させて、Ｘ線撮影を行うＸ線診
断装置において、上記センサが、上記呼吸状態に応じて
変化する空気中の空気構成物濃度を検出するセンサによ
って構成されたことを特徴とするＸ線診断装置。1. An X-ray diagnostic apparatus comprising a sensor for detecting a breathing state of a patient, and performing X-ray imaging in synchronization with the breathing state, wherein the sensor changes in the air in accordance with the breathing state. An X-ray diagnostic apparatus comprising a sensor for detecting the concentration of air constituents.
化するＣＯ2 濃度を検出するＣＯ2 センサによって構成
されたことを特徴とする請求項１記載のＸ線診断装置。Wherein said sensor, X-rays diagnostic apparatus according to claim 1, characterized in that it is constituted by a CO 2 sensor for detecting the CO 2 concentration which changes in accordance with the respiratory condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5144786A JPH078479A (en) | 1993-06-16 | 1993-06-16 | X-ray diagnostic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5144786A JPH078479A (en) | 1993-06-16 | 1993-06-16 | X-ray diagnostic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH078479A true JPH078479A (en) | 1995-01-13 |
Family
ID=15370417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5144786A Pending JPH078479A (en) | 1993-06-16 | 1993-06-16 | X-ray diagnostic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH078479A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003249398A (en) * | 2002-02-26 | 2003-09-05 | Canon Inc | Dynamic x-ray photographing method and controller for photographing dynamic x-ray image |
| JP2010110445A (en) * | 2008-11-06 | 2010-05-20 | Konica Minolta Medical & Graphic Inc | Kymography system |
-
1993
- 1993-06-16 JP JP5144786A patent/JPH078479A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003249398A (en) * | 2002-02-26 | 2003-09-05 | Canon Inc | Dynamic x-ray photographing method and controller for photographing dynamic x-ray image |
| JP2010110445A (en) * | 2008-11-06 | 2010-05-20 | Konica Minolta Medical & Graphic Inc | Kymography system |
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