JP2019207222A - 蛍光撮像装置 - Google Patents
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Abstract
Description
本出願は、2018年3月30日に米国特許商標局に出願された米国特許仮出願第62/650658号、さらに2019年1月31日に米国特許商標局に出願された米国特許仮出願第62/799516号の優先権を主張し、両出願の開示は、その全体が参照により組み込まれる。
Claims (21)
- 蛍光較正の方法であって、
対象物に入射する励起光を光プローブを介して供給することと、
前記対象物から発生した蛍光を検出することと、
前記対象物の構造データを取得することと、
前記構造データに基づいて前記対象物の光減衰特性を計算することと、
前記光減衰特性に基づいて蛍光強度を較正することと、を含む、方法。 - 前記光プローブと前記対象物との間の距離に基づいて前記蛍光強度を較正することをさらに含む、請求項1に記載の方法。
- 前記光プローブと前記対象物との間の距離を計算することをさらに含む、請求項1に記載の方法。
- 前記蛍光を検出することと、同時に前記構造データを取得することと、をさらに含む、請求項1に記載の方法。
- 前記蛍光および前記構造データがダブルクラッドファイバによって送出される、請求項1に記載の方法。
- 前記構造データが前記ダブルクラッドファイバのコアによって送出され、前記蛍光が前記ダブルクラッドファイバのクラッドによって送出される、請求項6に記載の方法。
- 前記構造データを光干渉断層撮影法によって取得することをさらに含む、請求項1に記載の方法。
- 前記光減衰特性は、OCT画像の減衰係数を含む、請求項1に記載の方法。
- 前記較正された蛍光強度を、前記蛍光によって構築された蛍光画像を補正するために適用することをさらに含む、請求項1に記載の方法。
- 蛍光較正の方法であって、
対象物に入射する励起光を光プローブを介して供給することと、
前記対象物から発生した蛍光の蛍光強度を検出することと、
前記対象物の構造データを取得することと、
前記光プローブと前記対象物との間の距離を計算することと、
前記距離に基づいて前記蛍光強度を較正することと、
前記距離に基づいて較正された前記蛍光強度が所定のレベルよりも高い場合には、前記構造データに基づいて前記対象物の光減衰特性を計算し、さらに、前記光減衰特性に基づいて前記蛍光の前記蛍光強度を較正することと、を含む、方法。 - 前記蛍光を検出することと、同時に前記構造データを得ることと、をさらに含む、請求項10に記載の方法。
- 前記蛍光および前記構造データがダブルクラッドファイバによって送出される、請求項10に記載の方法。
- 前記構造データが前記ダブルクラッドファイバのコアによって送出され、前記蛍光が前記ダブルクラッドファイバのクラッドによって送出される、請求項10に記載の方法。
- 前記構造データを光干渉断層撮影法(OCT)によって取得することをさらに含む、請求項10に記載の方法。
- 前記光減衰特性は、OCT画像の減衰係数を含む、請求項10に記載の方法。
- 第1の較正係数によって較正された前記蛍光強度が前記所定のレベルよりも高くない場合には、前記第1の較正係数によって較正された前記蛍光強度だけを適用して、前記蛍光によって構築された蛍光画像を補正することをさらに含む、請求項10に記載の方法。
- 第1の較正係数によって較正された前記蛍光強度が前記所定のレベルよりも高い場合には、前記第1の較正係数と第2の較正係数の両方によって較正された前記蛍光強度を適用して、前記蛍光によって構築された蛍光画像を補正することをさらに含む、請求項10に記載の方法。
- 励起光を発生するように構成された光源と、
前記励起光を対象物に向けて導き、前記励起光に応答して前記対象物で発生した蛍光を検出するための光導波路と、
蛍光を検出するための光センサと、
前記対象物からのOCT画像を得るように構成されたOCTシステムと、
信号プロセッサであって、
カテーテルと前記対象物との間の距離、および減衰係数を計算するように構成されたOCT画像処理ユニット、ならびに、
i)前記距離および前記減衰係数に基づいて前記蛍光の蛍光強度を較正する、
または、
ii)前記距離に基づいて前記蛍光の蛍光強度を較正し、前記距離に基づいて較正された前記蛍光強度が所定のレベルよりも高い場合には、前記減衰係数に基づいて前記蛍光を較正する、
ように構成された蛍光処理ユニット
を含む信号プロセッサと、
を備える、蛍光撮像システム。 - 前記蛍光および前記OCT画像を送出するためのダブルクラッドファイバを備える、請求項21に記載のシステム。
- 蛍光データ測定値を補正する方法であって、
対象構造物の第1の層と第2の層との間の境界を画定することと、
前記第2の層の深度を計算することと、
深度値を所定の補正関数に代入することによって深度較正係数を計算することと、(または補正表)
前記深度補正係数を乗じることによって蛍光強度を補正することと、を含む、方法。 - 蛍光データ測定値を補正する方法であって、
対象構造物の第1の層と第2の層との間の境界を画定することと、
前記第2の層の深度を計算することと、
深度値を所定の補正表に代入することによって深度較正係数を計算することと、
前記深度補正係数を乗じることによって蛍光強度を補正することと、を含む、方法。
Applications Claiming Priority (4)
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US201862650658P | 2018-03-30 | 2018-03-30 | |
US62/650,658 | 2018-03-30 | ||
US201962799516P | 2019-01-31 | 2019-01-31 | |
US62/799,516 | 2019-01-31 |
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JP2019207222A true JP2019207222A (ja) | 2019-12-05 |
JP7090578B2 JP7090578B2 (ja) | 2022-06-24 |
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Cited By (2)
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WO2022202400A1 (ja) * | 2021-03-22 | 2022-09-29 | 富士フイルム株式会社 | 画像処理装置、画像処理方法、及びプログラム |
JP7470761B2 (ja) | 2021-10-04 | 2024-04-18 | キヤノン ユーエスエイ,インコーポレイテッド | 手動管腔検出に基づく蛍光較正 |
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