JP6673985B2 - イメージングシステムの動作を制御する方法 - Google Patents
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- JP6673985B2 JP6673985B2 JP2018131974A JP2018131974A JP6673985B2 JP 6673985 B2 JP6673985 B2 JP 6673985B2 JP 2018131974 A JP2018131974 A JP 2018131974A JP 2018131974 A JP2018131974 A JP 2018131974A JP 6673985 B2 JP6673985 B2 JP 6673985B2
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- A61B5/7264—Classification of physiological signals or data, e.g. using neural networks, statistical classifiers, expert systems or fuzzy systems
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- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/42—Details of probe positioning or probe attachment to the patient
- A61B8/4245—Details of probe positioning or probe attachment to the patient involving determining the position of the probe, e.g. with respect to an external reference frame or to the patient
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Description
本出願は、2010年、11月8日に出願された、米国仮出願番号61/411,225、発明の名称「SYSTEMS AND METHODS FOR IMPROVED VISUALIZATION DURING MINIMALLY INVASIVE PROCEDURES」の優先権を主張し、この文献の全体は、引用によって本願に援用される。
Claims (16)
- プロセッサによって撮像システムの動作を制御する方法であって、
前記撮像システムは、撮像プローブと、置換可能媒体を置換する媒体置換装置とを備え、
前記撮像プローブは、第1撮像機器と第2撮像機器によって画像を取得するように構成された撮像部品を備え、
前記第1撮像機器は、前記置換可能媒体の存在と適合しており、
前記方法は、
前記プロセッサにより、前記置換可能媒体が存在しているときにおける前記撮像プローブの前記撮像部品の第1移動の間に、前記第1撮像機器から画像の第1セットを取得するステップであって、前記第1セットは、前記撮像プローブの前記撮像部品の対応する位置と空間的に相関している、ステップ、
前記プロセッサにより、前記撮像部品の第2移動の間に、前記第2撮像機器から画像の第2セットを取得するステップであって、前記第2セットは、前記第1セットに基づき識別される関心領域に対応する、ステップ、
前記第2セットを取得する間において、
前記第2セットをリアルタイムで処理して、関連する画像品質指標を取得し、前記画像品質指標は、前記置換可能媒体を置換しようとしている腔内領域内に存在する前記画像の一部を処理することによって生成され、これにより、前記腔内領域内に存在する前記置換可能媒体の量を前記画像品質指標が定量化するようにし、
前記プロセッサにより、前記媒体置換装置に対して制御信号を送信して、前記置換可能媒体の置換を制御し、
前記制御信号は、前記画像品質指標に対応するフィードバックに基づき決定され、これにより前記媒体置換装置は前記腔内領域内において前記置換可能媒体を置換することを実現し、これにより前記第2セットの画像品質を改善するように制御される、
ステップ、
を有することを特徴とする方法。 - 前記制御信号は、フラッシュ液の配送レート、フラッシュ液の体積、フラッシュされる量の時間プロファイル、または置換バルーンの膨張体積のうち1以上を変化させるように構成されている
ことを特徴とする請求項1記載の方法。 - 前記制御信号は、媒体置換動作の1以上の要素を最小化するように構成されている
ことを特徴とする請求項1または2記載の方法。 - 前記1以上の要素は、置換動作の時間、フラッシュ液の配送レート、およびフラッシュ液の体積を含むグループから選択されている
ことを特徴とする請求項3記載の方法。 - 前記制御信号は、前記画像品質指標を規定条件と比較することに基づき決定される
ことを特徴とする請求項1から4のいずれか1項記載の方法。 - 前記プロセッサは、前記画像品質指標が前記規定条件に合致しないとき、前記第2移動を中断するように構成されている
ことを特徴とする請求項5記載の方法。 - 前記画像品質指標は、腔内媒体の存在に関連しており、
前記腔内媒体は血液であることを特徴とする請求項1記載の方法。 - 前記画像品質指標は、腔内媒体の存在に関連しており、
前記腔内媒体の存在は、スペクトル分析によって検出される
ことを特徴とする請求項1記載の方法。 - 前記方法はさらに、前記プロセッサにより媒体置換に関連するパラメータを監視するステップを有する
ことを特徴とする請求項8記載の方法。 - 前記方法はさらに、前記パラメータが規定値範囲内に収まらないとき、前記プロセッサにより、オペレータにアラートを送信するかまたは前記媒体置換装置に対して制御信号を送信するステップを有する
ことを特徴とする請求項9記載の方法。 - 前記第1セットを処理するステップは、前記プロセッサにより3次元画像データを処理するステップを有する
ことを特徴とする請求項10記載の方法。 - 前記関心領域を識別するステップは、前記第1セットを既知のまたは予測される特性と比較するステップを有する
ことを特徴とする請求項11記載の方法。 - 前記既知のまたは予測される特性は、標準解剖特性、病理解剖特性、または医療インプラントのうち1以上の空間プロファイルおよび/または組織タイプである
ことを特徴とする請求項12記載の方法。 - 前記第1セットを処理するステップは、検出した境界の空間プロファイル、組織タイプ、または温度プロファイルのうち1以上を前記プロセッサにより判定するステップを有する
ことを特徴とする請求項1から13のいずれか1項記載の方法。 - 前記関心領域は、プラーク、血栓、分岐点、病変、石灰化、ステント、小線源療法インプラント、狭窄、血管壁増大領域、脂質コア、壊死領域、線維性被膜、切開、マイクロバブル、ターゲットマイクロバブル、血管病変、これらの組み合わせを含むグループから選択された物質または形状である
ことを特徴とする請求項1から14のいずれか1項記載の方法。 - 前記方法はさらに、前記プロセッサにより前記第1セットと前記第2セットを処理して前記第1セットを前記第2セットと空間的に相関付けるステップを有する
ことを特徴とする請求項1から15のいずれか1項記載の方法。
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