JP2021527472A - 第2のリーダー示唆 - Google Patents
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Abstract
Description
1.線維性組織のわずかな優位を伴う乳房組織のすべての成分のバランスの取れた割合
2.脂肪組織の優位
3.後輪状(retro−areolar)残存線維組織をもつ脂肪組織の優位
4.優位結節性密度
5.優位線維性組織(密な乳房)。
A.乳房がほとんど完全に脂肪質である
B.線維腺密度(fibro−glandular density)の散乱エリアがある
C.乳房が不均一に密であり、これは小塊を不明瞭にし得る
D.乳房が極めて密であり、これはマンモグラフィの感度を下げる。
1.真に独立した第2のリーダーとして、第1の(人間)放射線科医がケースを見て、本システムがケースを独立して評価する。2つの意見が異なる場合、本実施例のシステムは、人間放射線科医が考えるための当該の病変についてのアウトラインを示し、2つの意見が一致する場合、放射線科医はシステムの出力を参照しない。又は
2.人間放射線科医が本実施例のシステムによってサポートされる点で、人間放射線科医と本実施例のシステムの両方がケースを分析する、非独立の第2のリーダーとして。放射線科医は、彼らが希望するときはいつでも、本実施例のシステムによって生成された結果を参照するためにクリックすることができる。
3.検証ツールに画像のセットと放射線科医からの診断情報の両方が与えられるという条件で、第1の放射線科医が患者についての画像のセットの手動検討及び診断を実行した後の検証ツール。画像のセットにおいて放射線科医が診断することをツールが予想するであろうことから(及び随意に、たとえば患者の年齢など、さらなるデータにも基づいて)、診断が分かれる場合、ツールは、第2の放射線科医が、画像のセットの独立した検討を実行し、第2の診断を行うことを示唆することができる。
ここで、Cはクラスの数であり、y∈{0、1}はクラスcのためのバイナリ・インジケータであり、sはクラスcのためのスコアである。
L(x)=λ1L1+λ2L2
ここで、L1、L2は2つの異なるタスクについての損失項であり、λ1、λ2は重み付け項である。
Claims (20)
- 医療画像を分析するコンピュータ援用方法であって、前記方法は、
1つ又は複数の医療画像を受信するステップと、
1つ又は複数の特性を決定するために前記1つ又は複数の医療画像を分析するステップと、
前記決定された1つ又は複数の特性に基づいて出力データを生成するステップと、
前記1つ又は複数の医療画像の手動で決定された特性に関するユーザからの入力データを受信するステップと、
前記決定された1つ又は複数の特性と前記手動で決定された特性との類似度を決定するステップと
を含み、
前記類似度が所定のしきい値を下回る場合、前記1つ又は複数の医療画像のさらなる分析をトリガするために出力が生成される、コンピュータ援用方法。 - 前記さらなる分析が、別のユーザ又は前記ユーザによるさらなる分析を備える、請求項1に記載の方法。
- 前記さらなる分析が、コンピュータ援用診断システムによるさらなる分析を備える、請求項1又は2に記載の方法。
- 前記さらなる分析が、コンピュータ化トモグラフィ(CT)走査、超音波走査、磁気共鳴撮像(MRI)走査、トモシンセシス走査、及び/又は生検のいずれか又はそれらの任意の組合せを備える、請求項1から3までのいずれか一項に記載の方法。
- 前記1つ又は複数の医療画像が1つ又は複数のマンモグラフィ走査又はX線走査を備える、請求項1から4までのいずれか一項に記載の方法。
- 分析する及び決定する前記ステップが、1つ又は複数のトレーニングされた機械学習モデルを使用して実行される、請求項1から5までのいずれか一項に記載の方法。
- 前記トレーニングされた機械学習モデルが畳み込みニューラル・ネットワークを備える、請求項6に記載の方法。
- 分析する及び決定する前記ステップが、1つ又は複数の解剖学的領域をセグメント化することを含む、請求項1から7までのいずれか一項に記載の方法。
- 前記出力データが、セグメント化アウトラインを示すオーバーレイ・データ、及び/又は1つ若しくは複数のセグメント化された領域の1つ若しくは複数のロケーションを示す確率マスクをさらに備える、請求項1から8までのいずれか一項に記載の方法。
- 分析する及び決定する前記ステップが、組織タイプと密度カテゴリーとを識別することを含む、請求項1から9までのいずれか一項に記載の方法。
- 1つ又は複数の追加の医学的検査の必要とされるタイプが、前記1つ又は複数の医療画像に基づいて決定された前記密度カテゴリーに依存する、請求項4及び10に記載の方法。
- 分析する及び決定する前記ステップが、前記医療画像中の1つ又は複数の異常領域を自動的に識別することを含む、請求項1から11までのいずれか一項に記載の方法。
- 分析する及び決定する前記ステップが、悪性病変及び/又は良性病変及び/又は一般的病変を識別する及び区別することを含む、請求項1から12までのいずれか一項に記載の方法。
- 前記出力データが、前記1つ又は複数の病変のための確率マスクを示すオーバーレイ・データをさらに備える、請求項13に記載の方法。
- 分析する及び決定する前記ステップが、アーキテクチャひずみを識別することを含む、請求項1から14までのいずれか一項に記載の方法。
- 前記1つ又は複数の医療画像及び前記1つ又は複数の追加の医療画像が、医療におけるデジタル撮像及び通信(DICOM)ファイルの使用を備える、請求項1から15までのいずれか一項に記載の方法。
- 医療画像のセットを分析するためのシステムであって、前記システムは、
医療撮像デバイスと、
ピクチャ・アーカイビング通信システム(PACS)と、
医療画像の各セットについての診断メタデータを入力するように動作可能なユーザ端末と、
1つ又は複数の特性を決定し、前記決定された1つ又は複数の特性と前記入力された診断メタデータとの類似度を決定するために、前記PACS上の医療画像の各セットのうちの1つ又は複数を分析するように動作可能な処理ユニットと、
前記類似度が所定のしきい値を下回る場合、医療画像の前記セットのための要件を表示するか、又は医療画像の前記セットのさらなる分析をトリガするように動作可能な出力ビューアと
を備える、システム。 - 前記処理ユニットが、前記医療撮像デバイスと一体化されているか、又は前記処理ユニットが、リモートに位置し、通信チャネルを介してアクセス可能である、請求項17に記載のシステム。
- 請求項1から16までのいずれか一項に記載の方法を実行するように動作可能な請求項17又は18に記載のシステム。
- 請求項1から19までのいずれか一項に記載の方法及び/又はシステムを実行するように動作可能なコンピュータ・プログラム製品。
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