JP7293334B2 - 医療用画像用略2πコンプトンカメラ - Google Patents
医療用画像用略2πコンプトンカメラ Download PDFInfo
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Description
Claims (20)
- 医療用画像のためのコンプトンカメラであって、
前記コンプトンカメラが、
アイソセンタ軸を有する患者空間のためのベッド(60)と、
第1の散乱検出器(12)と、前記第1の散乱検出器(12)から間隔を置いて配置された第1の捕獲検出器(13)とを有する第1のモジュール(11)であって、
前記第1の散乱検出器(12)は、前記アイソセンタ軸に面する外面を有し、前記外面は、前記アイソセンタ軸から前記第1の散乱検出器(12)の中心を通って垂直に延びる放射状線に対して少なくとも20度の角度だけ直交から傾斜しており、
前記第1の捕獲検出器(13)は、前記患者空間に対して前記第1の散乱検出器(12)の背後に実質的に半球状の周囲を形成する、
第1のモジュール(11)と、
前記第1の散乱検出器(12)および前記第1の捕獲検出器(13)からコンプトン事象の入射角を決定するように構成された画像プロセッサ(19)と、
を含む、コンプトンカメラ。 - 前記第1の散乱検出器(12)が、アコーディオン配置をなす一連のプレートを含む、請求項1に記載のコンプトンカメラ。
- 前記角度が少なくとも45度である、請求項1に記載のコンプトンカメラ。
- 前記第1の散乱検出器(12)が、前記放射状線に対して傾斜した配置を含む、請求項1に記載のコンプトンカメラ。
- 前記実質的に半球状の周囲が、前記第1の散乱検出器(12)に隣接する開放側を有する5面直方体を含む、請求項1に記載のコンプトンカメラ。
- 前記実質的に半球状の周囲が、前記第1のモジュール(11)内の非平行平面上に配置された複数の平面プレートを含む、請求項1に記載のコンプトンカメラ。
- 前記第1の散乱検出器(12)を読むための特定用途向け集積回路またはフィールドプログラマブルゲートアレイ(122)をさらに含み、
前記特定用途向け集積回路またはフィールドプログラマブルゲートアレイが前記外面と非平行になるように配置されたプレートを形成する、請求項1に記載のコンプトンカメラ。 - 前記第1のモジュール(11)の側壁上にシールド材料(114)をさらに含む、請求項1に記載のコンプトンカメラ。
- 第2の散乱検出器(12)と、前記第2の散乱検出器(12)から離間した第2の捕獲検出器(13)とを有する第2のモジュール(11)をさらに含み、
前記シールド材料が前記第1のモジュール(11)を前記第2のモジュール(11)から分離する、請求項8に記載のコンプトンカメラ。 - 第2の散乱検出器(12)を有する第2のモジュール(11)と、前記第2の散乱検出器(12)から間隔をあけた第2の捕獲検出器(13)と、をさらに含み、前記周囲が、前記第2の捕獲検出器(13)を含む、請求項1に記載のコンプトンカメラ。
- 追加の散乱検出器(12)を有する追加のモジュール(11)と、追加の散乱検出器(12)から間隔をあけた追加の捕獲検出器(13)とをさらに含み、
前記第1のモジュール(11)と前記追加のモジュール(11)が、前記患者空間の周りにリングまたは部分リングを形成する、請求項1に記載のコンプトンカメラ。 - 前記画像プロセッサ(19)が、前記コンプトン事象および前記角度からコンプトン画像を生成するように構成され、さらに前記コンプトン画像を表示するように構成されたディスプレイを含む、請求項1に記載のコンプトンカメラ。
- 請求項1から12のいずれか1項に記載のコンプトンカメラを備えた、
医療用画像システム。 - 患者からの放出を受信するように配置された散乱検出器(12)を含むコンプトンカメラを備え、
前記散乱検出器(12)が、前記患者の縦軸から前記散乱検出器(12)を通って垂直に伸びる放射状線に対して少なくとも20度の角度により外面が直交から離れている、前記患者に面する外面を有し、
前記コンプトンカメラが、捕獲検出器(13)をさらに含み、前記捕獲検出器(13)が、患者に対して前記散乱検出器(12)の後ろに略2π構造を含む、
医療用画像システム。 - 患者からの放出を受信するように配置された散乱検出器(12)を含むコンプトンカメラを備え、
前記散乱検出器(12)が、前記患者の縦軸から前記散乱検出器(12)を通って垂直に伸びる放射状線に対して少なくとも20度の角度により外面が直交から離れている、前記患者に面する外面を有し、
前記散乱検出器(12)の前記外面が、前記散乱検出器(12)の隣接プレートから形成されるアコーディオン表面を含む、
医療用画像システム。 - 患者からの放出を受信するように配置された散乱検出器(12)を含むコンプトンカメラを備え、
前記散乱検出器(12)が、前記患者の縦軸から前記散乱検出器(12)を通って垂直に伸びる放射状線に対して少なくとも20度の角度により外面が直交から離れている、前記患者に面する外面を有し、
前記散乱検出器(12)がモジュール(11)内にあり、かつ前記モジュール(11)の側面にガンマ線シールド材料をさらに含む、
医療用画像システム。 - 散乱検出器(12)および捕獲検出器(13)を含むコンプトンカメラであって、
前記散乱検出器(12)が患者からの放出を受け取るように配置され、
前記捕獲検出器(13)が前記患者からの放出による前記散乱検出器(12)からの散乱を受け取るように配置され、
前記捕獲検出器(13)が患者に対して前記散乱検出器(12)の後ろに配置された、多面検出表面を含む、
コンプトンカメラ、
を有する医療用画像システム。 - 前記散乱検出器(12)は、前記患者に面する外面を有し、
前記外面が、患者の縦軸から前記散乱検出器(12)を通って垂直に伸びる放射状線に対して少なくとも20度の角度で直交から傾斜している、請求項17に記載の医療用画像システム。 - 前記多面検出表面が略2π構造を構成する、請求項17に記載の医療用画像システム。
- 前記散乱検出器(12)および捕獲検出器(13)が、モジュール(11)内にあり、前記モジュール(11)の側面上にガンマ線シールド材料をさらに含む、請求項17に記載の医療用画像システム。
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EP3817663A1 (en) * | 2018-08-07 | 2021-05-12 | Siemens Medical Solutions USA, Inc. | Adaptive compton camera for medical imaging |
US11707243B2 (en) * | 2021-04-14 | 2023-07-25 | Canon Medical Systems Corporation | Scatter and random coincidence rejection |
US11647973B2 (en) * | 2021-05-04 | 2023-05-16 | Siemens Medical Solutions Usa, Inc. | Three-dimensional tileable gamma ray detector |
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2018
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- 2018-08-07 EP EP18759214.2A patent/EP3817664A1/en active Pending
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