JP2017537768A - 血管内の特徴を検出し且つ表示するためのシステム及び方法 - Google Patents
血管内の特徴を検出し且つ表示するためのシステム及び方法 Download PDFInfo
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Abstract
Description
本出願は、2014年12月12日に出願された米国仮出願第62/091,236号及び2015年4月28日に出願された米国仮特許出願第62/153,816号の優先権を主張し、これらのそれぞれの全開示は、参照により本明細書に援用される。
Claims (27)
- 血管の関心領域を識別するための方法であって、前記方法は:
前記血管のOCT画像データを提供するステップ;
複数の異なるエッジ検出フィルタを前記OCT画像データに、各前記エッジ検出フィルタに対するフィルタ応答を生成するように適用するステップ;
各エッジ検出フィルタ応答において、任意の応答最大値を識別するステップであって、局所応答最大値が検出されたエッジを表す、ステップ;
前記応答最大値の空間的な関係を維持しながら各前記エッジ検出フィルタ応答に対する前記応答最大値を、それによってエッジフィルタOCTデータを作成するように、組み合わせるステップ;及び
前記関心領域を識別するために前記エッジフィルタOCTデータを解析するステップであって、前記関心領域は、前記応答最大値のローカルクラスタとして定義される、ステップ;
を含む、
方法。 - 前記エッジ検出フィルタは、ガウス関数の導関数に基づく、
請求項1に記載の方法。 - 前記OCT画像データは、極座標空間でフォーマットされる又は極座標画像を含む、
請求項1に記載の方法。 - 前記OCT画像データは、デカルト空間でフォーマットされる又は断面画像を含む、
請求項1に記載の方法。 - 前記複数の異なるエッジ検出フィルタは、水平エッジ検出フィルタ及び垂直エッジ検出フィルタを含む、
請求項1に記載の方法。 - 前記水平エッジ検出フィルタは、上部エッジフィルタ及び底部エッジフィルタを有する、
請求項5に記載の方法。 - 垂直エッジ検出フィルタは、左側エッジ検出フィルタ及び右側エッジ検出フィルタを有する、
請求項5に記載の方法。 - 複数のOCT画像フレームに対して前記ステップを繰り返すステップを含む、
請求項1に記載の方法。 - 前記エッジフィルタOCTデータ及び前記関心領域に基づいて、前記複数のOCT画像フレームを使用して前記血管の2次元又は3次元モデルをレンダリングするステップを含む、
請求項8に記載の方法。 - 前記局所最大値は、前記フィルタ応答を所定の閾値と比較することによって決定される、
請求項1に記載の方法。 - 前記複数のフィルタは、少なくとも上部エッジフィルタ、左側エッジフィルタ、及び右側エッジフィルタを有する、
請求項1に記載の方法。 - 前記関心領域が少なくとも1つの垂直エッジ応答最大値を含む場合に前記関心領域を石灰化領域として識別するステップを含む、
請求項7に記載の方法。 - 前記関心領域が垂直エッジ応答最大値を含まない場合に前記関心領域を非石灰化領域として識別するステップを含む、
請求項7に記載の方法。 - 前記モデルは、前記血管の3次元長手方向断面レンダリングであり、前記モデルは、前記関心領域の弧長を示す図形を含み、前記図形は、前記血管がリングを通って延びる状態で前記血管と同心の前記リングを含み、前記リングは、健康な組織の前記弧長に比例する第1の印及び前記関心領域の前記弧長に比例する第2の印を有する、
請求項9に記載の方法。 - 血管の関心領域を識別するためのシステムであって、前記システムは:
メモリと通信するプロセッサであって、前記メモリは、実行されるとき前記プロセッサに:
前記血管のOCT画像データを取得させ;
複数の異なるエッジ検出フィルタを前記OCT画像データに、各前記フィルタに対するフィルタ応答を生成するように適用させ;
各前記フィルタ応答において、任意の応答最大値を識別させ、局所応答最大値が検出されたエッジを表し;
前記応答最大値の空間的な関係を維持しながら各前記フィルタ応答に対する前記応答最大値を、それによってエッジフィルタOCTデータを作成するように、組み合わさせ;並びに
前記OCT画像データを含む前記応答最大値のローカルクラスタとして定義される前記関心領域を識別するように前記エッジフィルタOCTデータを解析させる;
命令を含む、
システム。 - 前記OCT画像データは、複数の走査線である、
請求項15に記載のシステム。 - 前記OCT画像データは、極座標画像である、
請求項15に記載のシステム。 - 前記命令は、前記プロセッサに石灰化領域の内側の境界及び外側の境界を表示させる、
請求項15に記載のシステム。 - 前記命令は、前記プロセッサに石灰化領域の内側の境界及び外側の境界を表示させる、
請求項15に記載のシステム。 - 血管内データ表示システムであって、
グラフィカルユーザインタフェースと通信し且つ前記グラフィカルユーザインタフェースにコマンドを送信するように構成されるプロセッサを有し、
前記グラフィカルユーザインタフェースは、光コヒーレンストモグラフィ手順からの画像データを血管の断面図に対応する第1のパネルに表示するように構成され、
前記グラフィカルユーザインタフェースは、光コヒーレンストモグラフィ手順からの画像データを血管の長手方向断面図に対応する第2のパネルに表示するように構成され、
前記グラフィカルユーザインタフェースは、前記血管のビューに対応する血管造影データを第3のパネルに表示するように構成され、
1又は複数の印が、前記第1、前記第2及び前記第3のパネルの1又は複数へのオーバーレイ又は包含のために前記プロセッサによって選択可能である、
血管内データ表示システム。 - 前記第1のパネルは、前記血管の断面画像を表示し、前記第2のパネルは、前記血管の長手方向断面画像を表示する、
請求項20に記載のシステム。 - 前記1又は複数の印は、前記血管の石灰化された部分の位置を強調するために1又は複数の前記パネル内に配置される、
請求項20に記載のシステム。 - 前記1又は複数の印は、ステント又はスキャフォールドの位置を強調するために1又は複数の前記パネル内に配置される、
請求項20に記載のシステム。 - 前記1又は複数の印は、前記血管の血管造影画像及び前記血管の光コヒーレンストモグラフィ画像に対するステントの位置を強調するために1又は複数の前記パネル内に配置される、
請求項20に記載のシステム。 - 前記1又は複数の印は、基準血管プロファイルを強調するために1又は複数の前記パネル内に配置される、
請求項20に記載のシステム。 - 前記1又は複数の印は、ABS/AVSデバイスのようなステントの拡張をガイドするために1又は複数の前記パネル内に配置される、
請求項20に記載のシステム。 - 前記印は、曲線、線、点線、色、楕円若しくは円の弧、色、アイコン、又は他のスクリーン上の可視化可能な要素からなるグループから選択される、
請求項20に記載のシステム。
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Application Number | Priority Date | Filing Date | Title |
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US201462091236P | 2014-12-12 | 2014-12-12 | |
US62/091,236 | 2014-12-12 | ||
US201562153816P | 2015-04-28 | 2015-04-28 | |
US62/153,816 | 2015-04-28 | ||
PCT/US2015/065626 WO2016094909A1 (en) | 2014-12-12 | 2015-12-14 | Systems and methods to detect and display endovascular features |
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JP2022180408A (ja) | 2022-12-06 |
CA2970658A1 (en) | 2016-06-16 |
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CN107872963A (zh) | 2018-04-03 |
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ES2864714T3 (es) | 2021-10-14 |
JP6824896B2 (ja) | 2021-02-03 |
JP7434471B2 (ja) | 2024-02-20 |
CN112634267B (zh) | 2024-07-09 |
US20160171711A1 (en) | 2016-06-16 |
EP3229663B1 (en) | 2021-02-24 |
JP2021090761A (ja) | 2021-06-17 |
US10878572B2 (en) | 2020-12-29 |
US20180225830A1 (en) | 2018-08-09 |
CN107872963B (zh) | 2021-01-26 |
AU2015360265B2 (en) | 2020-08-27 |
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