JP2014509239A - 血管内の装置の形状を用いた血管画像の非剛体モーフィング - Google Patents
血管内の装置の形状を用いた血管画像の非剛体モーフィング Download PDFInfo
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Abstract
Description
a)"有する"という言葉は所与の請求項に挙げられる要素又は行動以外の要素又は行動の存在を排除するものではない。
b)要素が複数あることを述べないことが、これら要素が複数あることを排除しない。
c)請求項における如何なる参照番号もこれらの範囲を限定するものではない。
d)幾つかの"手段"は、同じアイテム又はハードウェア若しくはソフトウェアが実施する構造又は関数により表現されてもよい。
e)行動の特別なシーケンスは、特に示されない限り、必要とされることを意図していない。
Claims (24)
- 介入処置の画像を生成するように構成される医療撮像システム、
前記介入処置の画像上に重畳画像を生成するように構成される重畳生成器、並びに
前記処置中に、介入装置の三次元(3D)の位置、配向及び形状を動的に追尾するように構成される介入装置追尾システム
を有する医療システムにおいて、
前記重畳画像は、前記処置中に前記介入装置により関心のある器官に生じる変形に応答して動的に更新される、
医療撮像システム。 - 前記重畳生成器は、前記介入装置からのフィードバック信号を解読し、前記介入装置の影響を受けた器官の新しい形状を決定するように構成される形状変形モジュールを含む、請求項1に記載の医療撮像システム。
- 前記重畳生成器は、画像空間における前記介入装置の位置、配向及び形状を決定するための形状決定モジュールを含む、請求項1に記載の医療撮像システム。
- 前記介入装置は、圧力、歪み、せん断又は近接/接触センサの少なくとも1つを含み、及びセンサの測定値は、器官の変形応答を決めるのに用いられる、請求項1に記載の医療撮像システム。
- 器官の重畳画像を更新するために、重畳モジュールにより用いられる前記器官の変形応答のモデルを記憶するように構成されるデータベースをさらに有する、請求項1に記載の医療撮像システム。
- 前記データベースは、組織応答の固有モード及び有限要素シミュレーションの少なくとも一方を記憶する、請求項5に記載の医療撮像システム。
- 請求項1に記載の医療撮像システムにおいて、前記医療撮像システムは、X線透視システムを含み、前記介入処置の画像は、造影剤を用いずに生成される、医療撮像システム。
- 前記介入装置追尾システムは、電磁追尾、光学検知又はX線透視マーカー追尾の少なくとも1つを含む請求項1に記載の医療撮像システム。
- 前記重畳画像は、コンピュータ断層撮影、磁気共鳴撮像、超音波又は核イメージングの少なくとも1つにより得られる被験者の3次元の解剖学的画像を含む、請求項1に記載の医療撮像システム。
- 介入処置の画像を生成するステップ、
前記介入処置の画像上に重畳画像を生成するステップ、
前記処置中に、前記介入装置の位置、配向及び形状を追尾するステップ、並びに
前記処置中に、前記介入装置により、関心のある器官に生じた変形に応答して前記重畳画像を動的に更新するステップ、
を有する医療処置のための方法。 - 前記重畳画像を更新するステップは、前記介入装置からのフィードバック信号を解読し、前記介入装置の影響を受けた器官の新しい形状を決定するステップを含む、請求項10に記載の方法。
- 前記介入装置は、圧力、歪み、せん断又は近接/接触センサの少なくとも1つを含み、及びセンサの測定値は、前記器官の変形応答を決めるために用いられる、請求項10に記載の方法。
- 前記器官の重畳画像を更新するのに用いられる、前記器官の変形応答のモデルを記憶するステップをさらに有する、請求項10に記載の方法。
- 前記モデルは、組織応答の固有モードを計算することにより生成される、請求項13に記載の方法。
- 前記モデルは、有限要素シミュレーションに従って生成される、請求項13に記載の方法。
- 前記介入処置中に、前記重畳画像と更新した重畳画像との間を切り替えるステップをさらに有する、請求項10に記載の方法。
- 前記追尾するステップは、電磁追尾、光学検知又はX線透視マーカー追尾の少なくとも1つを使用して、前記介入装置を追尾するステップを含む、請求項10に記載の方法。
- 前記重畳画像は、コンピュータ断層撮影、磁気共鳴撮像、超音波又は核イメージングの少なくとも1つにより得られる被験者の三次元の解剖学的画像を含む、請求項10に記載の方法。
- 介入処置の画像を生成するステップ、
前記介入処置の画像上に重畳画像を生成するステップ、
前記処置中に、介入装置の位置、配向及び形状を追尾するステップ、
前記介入装置が前記重畳画像の境界内にとどまっているかをチェックするステップ、
前記介入装置が前記境界内に完全に包囲されていない場合、前記介入装置が前記境界内にとどまることを可能にする器官の変形を決定するステップ、並びに
前記変形に従って、前記重畳画像を動的に更新するステップ
を有する、医療処置のための方法。 - 前記重畳画像を更新するステップは、前記介入装置からのフィードバック信号を解読し、前記介入装置の影響を受けた器官の新しい形状を決定するステップを含む、請求項19に記載の方法。
- 請求項19に記載の方法において、前記介入装置はセンサを含み、前記方法は、前記器官の変形応答を決めるためにセンサの測定値を用いるステップを有する、方法。
- 前記器官の重畳画像を更新するのに用いられる、前記器官の変形応答のモデルを記憶するステップをさらに有する、請求項19に記載の方法。
- 前記モデルは、計算した組織応答の固有モード又は有限要素シミュレーションの少なくとも1つにより生成される、請求項22に記載の方法。
- 前記介入処置中に、前記重畳画像と更新した重畳画像との間を切り替えるステップをさらに有する、請求項19に記載の方法。
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