JP6133794B2 - かん流比較及び定量化のためのデータの動的正規化 - Google Patents
かん流比較及び定量化のためのデータの動的正規化 Download PDFInfo
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Description
4 大動脈
5 分岐
6 右冠動脈
7 主コレクタ
8 左冠動脈
8a 回旋動脈
8b 左前下行枝
9 冠動脈口
10 かん流比較及び定量化のための動的正規化のための方法
20 ステップ:造影剤体積積分
20a ステップ:体積流量推定
20b ステップ:造影剤測定
20c ステップ:較正
20d ステップ:3D血管形状/2D収集配置の決定
21 ステップ:時間積分
22 ステップ:制御された収集
24 ステップ:制御された注入
26 ステップ:入力データ収集
28 ステップ:注入先端追跡
30 ステップ:主コレクタ追跡
32 ステップ:心臓DSAプロセス
34 ステップ:データ正規化
36 ステップ:定量化若しくは比較
40 x線システム
41 Cアーム
42 装置
44 x線検出器
46 x線源
48 オブジェクト
50 支持台
51 X線放射
53 注入カテーテル
55 可視化要素
Claims (14)
- かん流比較及び定量化のためのデータの動的正規化のための装置であって、かん流比較及び定量化のためのデータの動的正規化のための方法を実行する処理要素を有し、
前記処理要素は血管内の総体積流量及び造影剤の量を決定し、
前記処理要素は前記血管内の前記決定された総体積流量及び前記造影剤の量に基づいてかん流データを正規化し、
造影剤の絶対積分体積Q I (t)が次式によって決定され、
q T (t)が前記血管の規定区分における絶対総体積流量に対応し、
q' T (t)が前記血管の規定区分における造影剤の相対体積流量に対応し、
αが、観察される画像コントラストを特定吸収レベルに関連づける定数若しくは乗法因子に対応し、
C(t)が前記規定区分にわたって観察される平均コントラストに対応する、
装置。 - 可視化要素をさらに有し、
前記可視化要素が第1の画像収集の第1の正規化かん流x線画像データ及び第2の画像収集の第2の正規化かん流x線画像データの少なくとも一つをユーザへ視覚的に提供する、
請求項1又は2に記載の装置。 - x線源と、
x線検出器とをさらに有し、
オブジェクトが前記x線源と前記x線検出器との間に配置可能であり、
前記x線源と前記x線検出器が、前記オブジェクトの関心領域のx線画像データの収集のために動作可能なように結合される、
請求項1乃至3の何れか一項に記載の装置。 - かん流比較及び定量化のためのデータの動的正規化のための装置の作動方法であって、
血管内の総体積流量及び造影剤の量を決定するステップと、
前記決定された血管内の総体積流量及び造影剤の量に基づいてかん流データを正規化するステップと
を有し、
造影剤の絶対積分体積Q I (t)が次式によって決定され、
q T (t)が前記血管の規定区分における絶対総体積流量に対応し、
q' T (t)が前記血管の規定区分における造影剤の相対体積流量に対応し、
αが、観察される画像コントラストを特定吸収レベルに関連づける定数若しくは乗法因子に対応し、
C(t)が前記規定区分にわたって観察される平均コントラストに対応する、
方法。 - 前記造影剤の量が前記血管の規定区分を通って流れる造影剤の積分体積を決定することによって決定される、請求項5又は6に記載の方法。
- 前記造影剤の積分体積が前記血管の規定区分を通る総体積流量及び前記血管の規定区分にわたって観察される平均コントラストによって決定される、請求項5乃至7の何れか一項に記載の方法。
- 前記総体積流量が前記血管の規定区分に配置される流量計及び前記血管の規定区分におけるx線画像情報における全流体流量の推定の少なくとも一つによる総体積流量推定によって決定される、請求項5、6、又は8に記載の方法。
- 前記血管が事前に収集されたx線画像データにおける血管の表現であり、及び/又は
前記方法が事前に収集されたx線画像データの画像後処理のための方法である、
請求項5乃至9のいずれか一項に記載の方法。 - 請求項5乃至10のいずれか一項に記載の方法を実行するためのコンピュータプログラムが記憶されるコンピュータ可読媒体。
- 処理装置によって実行されるときに、請求項5乃至10のいずれか一項に記載の方法を実行するために請求項1乃至4のいずれか一項に記載の装置を制御する、コンピュータプログラム。
- コンピュータプログラムが実行される処理装置であって、前記処理装置はかん流x線画像データの正規化のために請求項5乃至10のいずれか一項に記載の方法を実行するために請求項1乃至4のいずれか一項に記載の装置を制御する、処理装置。
- 請求項5乃至10のいずれか一項に記載の方法のステップを有する、装置を操作するための方法。
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EP11305304.5 | 2011-03-18 | ||
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PCT/IB2012/050921 WO2012127339A1 (en) | 2011-03-18 | 2012-02-28 | Dynamic normalization of data for perfusion comparison and quantification |
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EP (1) | EP2686826B1 (ja) |
JP (1) | JP6133794B2 (ja) |
CN (1) | CN103430211B (ja) |
BR (1) | BR112013023556A2 (ja) |
RU (1) | RU2013146539A (ja) |
WO (1) | WO2012127339A1 (ja) |
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US9247920B2 (en) | 2014-02-27 | 2016-02-02 | General Electric Company | System and method for performing bi-plane tomographic acquisitions |
JP2015217170A (ja) * | 2014-05-19 | 2015-12-07 | 株式会社東芝 | X線診断装置 |
GB2533566B (en) | 2014-12-19 | 2018-02-14 | Gen Electric | Method for contrast medium injection volume estimation based on image analysis |
US9990712B2 (en) | 2015-04-08 | 2018-06-05 | Algotec Systems Ltd. | Organ detection and segmentation |
US10147171B2 (en) * | 2016-09-21 | 2018-12-04 | General Electric Company | Systems and methods for generating subtracted images |
EP3420906A1 (en) * | 2017-06-29 | 2019-01-02 | Koninklijke Philips N.V. | Image contrast enhancement of an x-ray image |
CN110739046A (zh) * | 2018-07-18 | 2020-01-31 | 安影科技(北京)有限公司 | 一种多期多参数脑灌注成像平台 |
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US7289841B2 (en) | 2002-10-25 | 2007-10-30 | Koninklijke Philips Electronics N.V. | Method and apparatus for volumetric cardiac computed tomography imaging |
DK1747477T3 (da) * | 2004-05-04 | 2013-06-17 | Stiftelsen Universitetsforskning Bergen | Blindbestemmelse af arteriel indgangs- og vævsrestfunktioner i perfusions-mri |
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JP2011509790A (ja) * | 2008-01-23 | 2011-03-31 | ミカラキス アヴェルキオウ | 超音波造影剤を用いる呼吸同期治療評価 |
JP5148315B2 (ja) * | 2008-02-25 | 2013-02-20 | 株式会社東芝 | 医用画像処理装置、及び医用画像処理プログラム |
DE102008021835A1 (de) * | 2008-04-30 | 2009-11-05 | Siemens Aktiengesellschaft | Verfahren und Tomographiegerät zur Normierung von Bilddaten hinsichtlich eines durch ein Kontrastmittel in den Bilddaten hervorgerufenen Kontrastes |
EP2326249B1 (en) | 2008-08-13 | 2017-01-18 | Koninklijke Philips N.V. | Dynamical visualization of coronary vessels and myocardial perfusion information |
JP5491929B2 (ja) * | 2009-04-10 | 2014-05-14 | 株式会社東芝 | X線診断装置及びその方法 |
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JP2014511713A (ja) | 2014-05-19 |
US20140005538A1 (en) | 2014-01-02 |
US10932739B2 (en) | 2021-03-02 |
CN103430211B (zh) | 2018-05-08 |
EP2686826B1 (en) | 2018-08-22 |
RU2013146539A (ru) | 2015-04-27 |
CN103430211A (zh) | 2013-12-04 |
BR112013023556A2 (pt) | 2016-12-06 |
WO2012127339A1 (en) | 2012-09-27 |
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