JP2531243B2 - ECG-gated fluoroscopic image / blood vessel image addition device - Google Patents
ECG-gated fluoroscopic image / blood vessel image addition deviceInfo
- Publication number
- JP2531243B2 JP2531243B2 JP63154378A JP15437888A JP2531243B2 JP 2531243 B2 JP2531243 B2 JP 2531243B2 JP 63154378 A JP63154378 A JP 63154378A JP 15437888 A JP15437888 A JP 15437888A JP 2531243 B2 JP2531243 B2 JP 2531243B2
- Authority
- JP
- Japan
- Prior art keywords
- image
- blood vessel
- fluoroscopic
- subtraction
- fluoroscopic image
- 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.)
- Expired - Fee Related
Links
- 210000004204 blood vessel Anatomy 0.000 title claims description 12
- 230000015654 memory Effects 0.000 claims description 12
- 230000001360 synchronised effect Effects 0.000 claims description 8
- 208000031481 Pathologic Constriction Diseases 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000037804 stenosis Diseases 0.000 description 2
- 230000036262 stenosis Effects 0.000 description 2
- KKJUPNGICOCCDW-UHFFFAOYSA-N 7-N,N-Dimethylamino-1,2,3,4,5-pentathiocyclooctane Chemical compound CN(C)C1CSSSSSC1 KKJUPNGICOCCDW-UHFFFAOYSA-N 0.000 description 1
- 201000000057 Coronary Stenosis Diseases 0.000 description 1
- 210000004351 coronary vessel Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002565 electrocardiography Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、医用診断像の表示の分野で利用される。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is used in the field of displaying medical diagnostic images.
本発明は、心電同期透視像・血管像加算装置に関し、
詳しくは心臓部など動きのある部位の透視像と血管像と
を識別表示するためのDSA（デジタルサブトラクシヨン
・アンギオフラフイー）装置の拡張に関する。The present invention relates to an electrocardiographic synchronized fluoroscopic image / blood vessel image adding device,
Specifically, it relates to expansion of a DSA (Digital Subtraction Angioflavie) device for discriminating and displaying a fluoroscopic image and a blood vessel image of a moving part such as the heart.
［従来技術］ カテーテルの操作において、透視像のみをモニタによ
り観察しながらコロナリ（冠動脈）へカテーテルを進め
ている。[Prior Art] When operating a catheter, the catheter is advanced to the coronary (coronary artery) while observing only a fluoroscopic image on a monitor.
［発明が解決しようとする課題］ コロナリに狭窄がある場合、コロナリへバルーンカテ
ーテルを挿入し、PTCA処理が行なわれる。この場合、透
視像を見ただけでカテーテルを進めるのでは、狭窄位置
が把握しにくく、バルーンを膨らませる位置がよくわか
らない。[Problems to be Solved by the Invention] When coronary has a stenosis, a balloon catheter is inserted into the coronary and PTCA treatment is performed. In this case, if the catheter is advanced only by looking at the fluoroscopic image, it is difficult to grasp the stenosis position, and the position where the balloon is inflated is not clearly known.
また、コロナリは、拍動しているため、医師がカテー
テルを進めるのに相当の技術を必要とし、失敗の可能性
もある。Coronary is also pulsating, requiring the doctor to have considerable skill in advancing the catheter, and can be a failure.
本発明の目的は、心臓部などの動きのある血管に対す
るカテーテルの操作において、例えばコロナリへカテー
テルを進める時、透視像ないしカテーテルと血管との関
係を把握できるようにして、カテーテル操作を容易にす
る、心電同期透視像・血管像加算装置を提供することで
ある。An object of the present invention is to facilitate the catheter operation when operating the catheter for a moving blood vessel such as the heart, for example, when advancing the catheter to the coronary, it is possible to grasp the fluoroscopic image or the relationship between the catheter and the blood vessel. An object of the present invention is to provide an electrocardiographic synchronized fluoroscopic image / blood vessel image adding device.
［課題を解決するための手段］ 前記した目的は、心電同期のＸ線透視像表示装置と心
臓部にかかる部位のサブトラクシヨン像記録装置から得
たサブトラクシヨン像１心拍分相当数のフレームメモリ
との組合わせにおいて、心電計からのＲ波検出によりサ
ブトラクシヨン像フレームメモリの読み出しを開始させ
るサブトラクシヨン像読み出し制御手段と、読み出され
たサブトラクシヨン像を白黒反転させる演算器と、白黒
反転したサブトラクシヨン像とデジタル化された透視像
との加算器と、加算器の出力がD/A変換器を介してモニ
タへ映出されるようにした表示手段とを具備することに
より、達成される。[Means for Solving the Problems] The above-mentioned object is to reduce the number of heartbeats corresponding to one subtraction image obtained from an electrocardiographically synchronized X-ray fluoroscopic image display device and a subtraction image recording device of a portion related to the heart. In combination with a frame memory, subtraction image read control means for starting the reading of the subtraction image frame memory by R wave detection from the electrocardiograph, and calculation for inverting the read subtraction image in black and white. And an adder of the subtracted black and white subtraction image and the digitized perspective image, and display means for displaying the output of the adder on the monitor through the D / A converter. This will be achieved.
［作 用］ 心臓部付近の透視像に対して、あらかじめ撮影してお
いた同じ部位のDSAサブトラクシヨン像（コロナリ）を
加算して表示する。この時、DSA像は１心拍分（心電波
形のＲ波からＲ波まで）30枚／秒で収集しておく。透視
像を見る時も常に心電波形を取り込んでおき、常にリア
ルタイムでその心電波形と同期したDSA像と加算する。
その際、加算するDSA像は血管を白色で表示して、透視
像上で白色の血管の上を黒色のカテーテルが動くように
して識別される。[Operation] A DSA subtraction image (coronary) of the same region that was previously taken is added to the perspective image near the heart and displayed. At this time, one DSA image (from the R wave to the R wave of the electrocardiographic waveform) is collected at 30 sheets / sec. When looking at a fluoroscopic image, the electrocardiographic waveform is always captured and always added in real time to the DSA image synchronized with the electrocardiographic waveform.
At that time, the DSA image to be added displays the blood vessel in white, and is identified by moving the black catheter over the white blood vessel on the fluoroscopic image.
［実 施 例］ 本発明の好適な実施例は、図面に基づいて説明され
る。[Embodiment] A preferred embodiment of the present invention will be described with reference to the drawings.
あらかじめDSAを行ない、コロナリのサブトラクシヨ
ン（サブ）像を採取しておく。Perform DSA in advance and collect the coronary subtraction (sub) image.
この時、サブ像は第２図に示すようにＲ波からＲ波ま
での１心拍分を30枚／秒でレートで収集しておく。At this time, as shown in FIG. 2, sub-images are collected at a rate of 30 heartbeats per second from R wave to R wave at a rate of 30.
第１図は１実施例を示している要部構成ブロツク図で
ある。FIG. 1 is a block diagram of the essential configuration showing one embodiment.
心電計12より心電波形を取り込み、この波形からＲ波
を検出して、このタイミングにより読み出しが行なわれ
るフレームメモリ２には、複数枚のフレームメモリを持
つていて、この中には、あらかじめ収集しておいた１心
拍分のサブ像（第２図のサブ像１〜サブ像ｎ）がメモリ
されている。The frame memory 2 that takes in the electrocardiographic waveform from the electrocardiograph 12, detects the R wave from this waveform, and reads out at this timing has a plurality of frame memories. The collected sub-images for one heartbeat (sub-image 1 to sub-image n in FIG. 2) are stored in the memory.
第１図におけるＲは、フレームメモリ２の読み出し制
御信号である。R in FIG. 1 is a read control signal of the frame memory 2.
10はＸ線透視像撮像系を示しており、心電計12と同期
して撮像される。Reference numeral 10 denotes an X-ray fluoroscopic imaging system, which is imaged in synchronization with the electrocardiograph 12.
フレームメモリ２から読み出されたサブ像は、演算器
３で白黒反転され背景が黒、血管部が白色の画像に処理
される。また、一方、透視像は、A/D変換器５を通し
て、リアルタイムで入力される。この白黒反転されたサ
ブ像と透視像は演算器５で加算され、D/A変換器６を通
してモニタ７へ表示される。The sub-image read from the frame memory 2 is black-and-white inverted by the calculator 3 and processed into an image with a black background and a white blood vessel portion. On the other hand, the perspective image is input in real time through the A / D converter 5. The black-and-white inverted sub image and the perspective image are added by the arithmetic unit 5 and displayed on the monitor 7 through the D / A converter 6.
この時、フレームメモリ２から読み出されるサブ像
は、Ｒ波の検出と制御信号Ｒにより第２図におけるサブ
像１が読み出される。そして、その次のフレームでは、
サブ像２が読み出され、その次のフレームでは、サブ像
３が読み出される。At this time, as the sub image read from the frame memory 2, the sub image 1 in FIG. 2 is read by the detection of the R wave and the control signal R. And in the next frame,
The sub-image 2 is read out, and in the next frame, the sub-image 3 is read out.
このように読み出されるサブ像が次々と更新されてい
き、Ｒ波の検出の都度、再びサブ像１が読み出される。
こうすることにより常に透視像に心電同期したサブ像が
加算されていく。The sub-images thus read are updated one after another, and the sub-image 1 is read again each time the R wave is detected.
By doing so, the sub-image synchronized with the electrocardiogram is always added to the fluoroscopic image.
この結果、モニタ７にはサブ像ないし血管像は白色
で、また透視像ないしカテーテルは黒色で表示され、両
者がはつきり識別されることによりコロナリの狭窄部が
認識され、バルーンカテーテルの挿入が容易に行なわれ
る。As a result, the sub-image or blood vessel image is displayed in white on the monitor 7, and the fluoroscopic image or catheter is displayed in black. By distinguishing between the two, the coronary stenosis is recognized and the balloon catheter is not inserted. Easily done.
なお、コロナリだけに限らず、心臓の拍動の影響のあ
る部位へ選択的にカテーテルを進めるとき、このマツピ
ングとして、本発明が適用される。The present invention is applied as this mapping when selectively advancing the catheter not only to the coronary but also to a site affected by the pulsation of the heart.
［効 果］ 透視像に心電同期したサブ像が加算、表示されるの
で、常に透視像と血管位置の関係をリアルタイムで正確
に把握できるため、医師がカテーテルを進めたり、バル
ーンカテーテルを膨らませたりするなどの操作が容易に
なる。[Effect] The sub-image synchronized with the electrocardiogram is added and displayed on the fluoroscopic image, so that the relationship between the fluoroscopic image and the blood vessel position can be accurately grasped in real time at all times. The operation such as doing becomes easy.
第１図は本発明の１実施例を示した要部構成ブロツク
図、第２図は心電同期したサブ像を格納したフレームメ
モリの構成例示図である。 ２はフレームメモリ、３は白黒反転演算器、４は加算
器、７はモニタ、10はＸ線透視像撮像系、12は心電計で
ある。FIG. 1 is a block diagram of a main part configuration showing one embodiment of the present invention, and FIG. 2 is a configuration example view of a frame memory storing sub-images synchronized with electrocardiography. Reference numeral 2 is a frame memory, 3 is a black and white inversion calculator, 4 is an adder, 7 is a monitor, 10 is an X-ray fluoroscopic image pickup system, and 12 is an electrocardiograph.
Claims (1)
かかる部位のサブトラクション像記録装置から得たサブ
トラクシヨン像１心拍分相当数のフレームメモリとの組
合わせにおいて、心電計からのＲ波検出によりサブトラ
クシヨン像フレームメモリの読み出しを開始させるサブ
トラクシヨン像読み出し制御手段と、読み出されたサブ
トラクシヨン像を白黒反転させる演算器と、白黒反転し
たサブトラクシヨン像とデジタル化された透視像との加
算器と、加算器の出力がD/A変換器を介してモニタへ映
出されるようにした表示手段とを具備していることを特
徴とする、心電同期透視像・血管像加算装置。1. An electrocardiograph comprising a combination of an electrocardiographically synchronized X-ray fluoroscopic image display device and a subtraction image obtained from a subtraction image recording device of a region related to the heart part for a number of frame memories corresponding to one heartbeat. A subtraction image reading control means for starting the reading of the subtraction image frame memory by detecting the R wave from the image, an arithmetic unit for inverting the read subtraction image in black and white, and a subtraction image in black and white. Electrocardiographic synchronization, characterized by comprising an adder with a digitized fluoroscopic image and display means for displaying the output of the adder on a monitor via a D / A converter. Fluoroscopic image / blood vessel image adding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63154378A JP2531243B2 (en) | 1988-06-22 | 1988-06-22 | ECG-gated fluoroscopic image / blood vessel image addition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63154378A JP2531243B2 (en) | 1988-06-22 | 1988-06-22 | ECG-gated fluoroscopic image / blood vessel image addition device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01320045A JPH01320045A (en) | 1989-12-26 |
| JP2531243B2 true JP2531243B2 (en) | 1996-09-04 |
Family
ID=15582843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63154378A Expired - Fee Related JP2531243B2 (en) | 1988-06-22 | 1988-06-22 | ECG-gated fluoroscopic image / blood vessel image addition device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2531243B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102525537A (en) * | 2009-02-23 | 2012-07-04 | 株式会社东芝 | Medical image processing apparatus and medical image processing method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014004465A (en) * | 2013-08-28 | 2014-01-16 | Toshiba Corp | Image processing apparatus, x-ray diagnostic apparatus and program |
-
1988
- 1988-06-22 JP JP63154378A patent/JP2531243B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102525537A (en) * | 2009-02-23 | 2012-07-04 | 株式会社东芝 | Medical image processing apparatus and medical image processing method |
| US9330481B2 (en) | 2009-02-23 | 2016-05-03 | Kabushiki Kaisha Toshiba | Medical image processing apparatus and medical image processing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01320045A (en) | 1989-12-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |