JP6367261B2 - 知識ベース超音波画像強調 - Google Patents
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Description
54 トランスデューサ
56 受信ビームフォーマ
58 画像プロセッサ
60 ディスプレイ
62 プロセッサ
64 メモリ
Claims (15)
- 医用超音波診断における画像強調方法であって、
超音波システムによって、患者の組織の走査から、前記組織の空間位置を表す超音波画像データを取得するステップ(12)と、
前記超音波システムのプロセッサ(62)によって、前記超音波画像データに、前記超音波画像データにおける前記超音波システムのイメージングアーティファクトの位置を出力する機械学習クラシファイヤを適用するステップ(14)と、
前記イメージングアーティファクトの前記位置の前記超音波画像データを他の位置と異なるように変更するステップ(20)と、
前記変更された超音波画像データから前記患者の前記組織の超音波画像を表示するステップ(22)とを含む方法。 - 前記取得するステップ(12)が、Bモード検出後にBモード画像データを取得するステップ(12)を含む、請求項1に記載の方法。
- 適用するステップ(14)が、
前記超音波画像データから特徴値を抽出するステップと、
前記位置を、前記特徴値の前記機械学習クラシファイヤへの入力に応じて出力するステップとを含む、請求項1に記載の方法。 - 適用するステップ(14)が、前記位置を格子ローブの位置として検出するステップを含み、
変更するステップ(20)が、フィルタ又は振幅スケーリングを前記イメージングアーティファクトの位置に適用し他の位置には適用しないステップ(14)を含む、請求項1に記載の方法。 - 適用するステップ(14)が、前記イメージングアーティファクトの位置を、血球の自然発生的コントラストの位置として検出するステップを含み、
変更するステップ(20)が、前記イメージングアーティファクトの位置に他の位置よりも強く振幅スケーリングするか大きな一時的パーシステンスを適用するステップ(14)を含む、請求項1に記載の方法。 - 適用するステップ(14)が、シャドーイングを検出するステップを含み、
変更するステップ(20)が、前記シャドーイングを低減するステップを含む、請求項1に記載の方法。 - 変更するステップ(20)が、空間適応フィルタリングを含み、
前記空間適応フィルタリングが、前記イメージングアーティファクトの前記位置の関数として適応する、請求項1に記載の方法。 - 医用超音波診断法における画像強調のためのプログラムプロセッサ(62)によって実行可能な命令を表すデータが記憶された持続性コンピュータ可読記憶媒体において、
超音波スキャナから、患者を表す検出超音波データを受け取るステップ(12)と、
前記検出超音波データによって表わされた位置を、知識ベースによって分類するステップ(14)と、
前記検出された超音波データを、前記位置の分類の関数として強調するステップ(20)であって、前記位置の全ての表現を維持しながら前記位置の幾つかの前記超音波データの振幅を他の位置に対して変化させる、強調するステップ(20)と、
前記強調された超音波データから画像を生成するステップ(22)のための命令を含む
記憶媒体。 - 分類するステップ(14)が、超音波データのグランドトゥルースラベル付きデータベースを含む知識ベースによって分類するステップ(14)を含む、請求項8に記載の持続性コンピュータ可読記憶媒体。
- 分類するステップ(14)が、機械学習クラシファイヤによって分類するステップ(14)を含み、前記機械学習クラシファイヤが、前記データベースから学習する、請求項8に記載の持続性コンピュータ可読記憶媒体。
- 分類するステップ(14)が、解剖学的構造を検出するステップを含み、
強調するステップ(20)が、前記解剖学的構造の前記位置の関数としてフィルタリングするステップを含む、請求項8に記載の持続性コンピュータ可読記憶媒体。 - 医用超音波診断における画像強調のためのシステムであって、
患者の部位を表す超音波データを取得するように構成された受信ビームフォーマ(56)と、
前記超音波データから検出データを出力するように構成されたBモード検出器(58)、ドップラー推定器(58)又はこれらの両方と、
前記検出データから特徴を抽出し、前記検出データからのアーティファクトを知識ベースの関数として識別し、前記検出データを前記アーティファクトの関数として画像処理するように構成されたプロセッサ(62)と、
前記画像処理された検出データに基づいて前記部位の画像を表示するように構成されたディスプレイ(60)とを含むシステム。 - 前記Bモード検出器(58)が、前記検出データとしてBモードデータを出力し、
前記プロセッサ(62)が、前記アーティファクトを、格子ローブ、シャドー、又は血液として識別するように構成され、前記アーティファクトの位置を他の位置とは異なるようにフィルタリングするように構成され、
前記ディスプレイ(60)は、前記画像を、前記アーティファクトが低減されたBモード画像として表示するように構成された、請求項12に記載のシステム。 - 前記プロセッサ(62)は、前記知識ベースから得られた機械学習クラシファイヤによって識別するように構成された、請求項12に記載のシステム。
- 前記プロセッサ(62)が、前記アーティファクトの位置を前記アーティファクトのない位置と異なるように画像処理するように構成された、請求項12に記載のシステム。
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US14/723,081 | 2015-05-27 | ||
US14/723,081 US10430688B2 (en) | 2015-05-27 | 2015-05-27 | Knowledge-based ultrasound image enhancement |
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