JP6147059B2 - 磁気共鳴および超音波パラメータの画像融合 - Google Patents
磁気共鳴および超音波パラメータの画像融合 Download PDFInfo
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Description
Claims (10)
- 磁気共鳴および超音波パラメータの画像融合のための超音波システムの作動方法であって、
前記超音波システムによって、患者の領域内の複数の位置を表している超音波パラメータデータを、第1のレートで取得(30)し、前記超音波パラメータデータは、前記患者の特徴のパラメータの第1の値を具え、前記第1の値は、Bモード検出超音波データまたは推定された速度、エネルギーまたは分散超音波データからのフローモードから算出され、
磁気共鳴システムによって、前記患者の前記領域内の前記複数の位置を表している磁気共鳴パラメータデータを、前記第1のレートより小さい第2のレートで取得(32)し、前記磁気共鳴パラメータデータは、前記患者の同一の特徴の前記パラメータの第2の値を具え、前記第2の値は磁気共鳴データから導出され、
プロセッサによって、前記位置の各々に対して個別に融合値を算出(44)し、前記位置の各々に対する前記算出は、前記位置に対する経時的な前記第1の値および前記第2の値に当てはめられたそれぞれの曲線を使用し、前記融合値は、前記第2のレートより大きい第3のレートでの前記患者の前記領域を表し、第1の時点の前記患者を表す前記磁気共鳴パラメータデータからの前記パラメータの前記第2の値を用いて、前記第2の値が供給されない第2の異なる時点の前記患者を表す前記融合値を算出し、
前記融合値から、融合パラメータの画像をディスプレイに生成する、
ことを特徴とする方法。 - 前記超音波パラメータデータおよび前記磁気共鳴パラメータデータを取得(30、32)することは、弾性データ、温度測定データまたは造影剤の潅流データを取得することを含み、
前記パラメータは、弾性特性、温度または造影剤の潅流特性を具える、
請求項1に記載の方法。 - 前記超音波パラメータデータを前記第1のレートで取得(30)すること、および、前記磁気共鳴パラメータデータを前記第2のレートで取得(32)することは、前記超音波パラメータデータを、前記磁気共鳴パラメータデータを取得することより高速のフレームまたはボリュームレートで取得すること含む、
請求項1に記載の方法。 - 前記融合値を時点Thighで算出(44)することは、磁気共鳴パラメータデータの2番目から最後のフレームが取得された時点である時点Tlow(Tlow<Thigh)から時点Thighまで延在している移動ウィンドウを適用することと、
前記移動ウィンドウによって定義された時間範囲で前記融合値を算出することと、
を含む、
請求項1に記載の方法。 - 算出(44)することは、前記移動ウィンドウ内で前記第1の値および前記第2の値のエネルギー関数を最小化することを含み、
当てはめ曲線を用いて、時点Thighで前記融合値を生成する、
請求項4に記載の方法。 - 算出(44)することは、移動ウィンドウ内で前記第1の値および前記第2の値の重み付け最小二乗当てはめを実行することを含む、
請求項1に記載の方法。 - 算出(44)することは、前記第1のレートで前記領域を表すために前記融合値を算出(44)することを含み、
前記第1のレートと前記第3のレートとは等しい、
請求項1に記載の方法。 - 前記融合パラメータの画像を生成(46)することは、前記融合パラメータの画像のシーケンスを前記第3のレートで表示することを含み、
前記融合パラメータの画像は、前記パラメータおよび前記領域を表す、
請求項1に記載の方法。 - 算出(44)前に、前記第1の値を内挿(40)すること、前記第2の値を内挿(40)すること、あるいは、前記第1の値および前記第2の値を共通の分解能に内挿(40)することをさらに含む、
請求項1に記載の方法。 - 解剖を表す磁気共鳴および超音波データを使用して、前記第1の値、前記第2の値、あるいは、前記第1の値および前記第2の値の空間位置を動き補正(42)することをさらに含む、
請求項1に記載の方法。
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US13/436,718 US9119550B2 (en) | 2012-03-30 | 2012-03-30 | Magnetic resonance and ultrasound parametric image fusion |
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JP2013212381A5 JP2013212381A5 (ja) | 2016-06-02 |
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US9119550B2 (en) | 2015-09-01 |
US20130261429A1 (en) | 2013-10-03 |
CN103356189A (zh) | 2013-10-23 |
DE102013005038A1 (de) | 2013-10-02 |
CN103356189B (zh) | 2016-07-06 |
FR2988580A1 (fr) | 2013-10-04 |
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