JP2022510958A - マルチモーダル放射線機器および方法 - Google Patents
マルチモーダル放射線機器および方法 Download PDFInfo
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Abstract
Description
本出願は、2018年11月30日出願の米国特許仮出願第62/773,712号(代理人整理番号第38935/04001号);2018年11月30日出願の米国特許仮出願第62/773,700号(代理人整理番号第38935/04002号);2019年1月25日出願の米国特許仮出願第62/796,831号(代理人整理番号第38935/04004号);2019年2月1日出願の米国特許仮出願第62/800,287号(代理人整理番号第38935/04003号);2019年2月5日出願の米国特許仮出願第62/801,260号(代理人整理番号第38935/04006号);2019年3月4日出願の米国特許仮出願第62/813,335号(代理人整理番号第38935/04007号);2019年3月20日出願の米国特許仮出願第62/821,116号(代理人整理番号第38935/04009号);2019年4月19日出願の米国特許仮出願第62/836,357号(代理人整理番号第38935/04016号);2019年4月19日出願の米国特許仮出願第62/836,352号(代理人整理番号第38935/04017号);2019年5月6日出願の米国特許仮出願第62/843,796号(代理人整理番号第38935/04005号);および2019年7月25日出願の米国特許仮出願第62/878,364号(代理人整理番号第38935/04008号)を含む、11件の米国特許仮出願の利益を主張する。本出願はまた、「APPARATUS AND METHODS FOR SCALABLE FIELD OF VIEW IMAGING USING A MULTI-SOURCE SYSTEM」と題する代理人整理番号第38935/04020号;「INTEGRATED HELICAL FAN-BEAM COMPUTED TOMOGRAPHY IN IMAGE-GUIDED RADIATION TREATMENT DEVICE」と題する代理人整理番号第38935/04011号;「COMPUTED TOMOGRAPHY SYSTEM AND METHOD FOR IMAGE IMPROVEMENT USING PRIOR IMAGE」と題する代理人整理番号第38935/04010号;「OPTIMIZED SCANNING METHODS AND TOMOGRAPHY SYSTEM USING REGION OF INTEREST DATA」と題する代理人整理番号第38935/04013号;「HELICAL CONE-BEAM COMPUTED TOMOGRAPHY IMAGING WITH AN OFF-CENTERED DETECTOR」と題する代理人整理番号第38935/04015号;「MULTI-PASS COMPUTED TOMOGRAPHY SCANS FOR IMPROVED WORKFLOW AND PERFORMANCE」と題する代理人整理番号第38935/04021号;「METHOD AND APPARATUS FOR SCATTER ESTIMATION IN CONE-BEAM COMPUTED TOMOGRAPHY」と題する代理人整理番号第38935/04012号;「ASYMMETRIC SCATTER FITTING FOR OPTIMAL PANEL READOUT IN CONE-BEAM COMPUTED TOMOGRAPHY」と題する代理人整理番号第38935/04014号;「METHOD AND APPARATUS FOR IMPROVING SCATTER ESTIMATION AND CORRECTION IN IMAGING」と題する代理人整理番号第38935/04018号;および「METHOD AND APPARATUS FOR IMAGE RECONSTRUCTION AND CORRECTION USING INTER-FRACTIONAL INFORMATION」と題する代理人整理番号第38935/04022号を含む、同日に出願された10件の非仮出願である米国特許出願に関する。上記にて確認された1つまたは複数の特許出願および1つまたは複数の特許全ての内容は、本明細書に参照として完全に組み入れられる。
I.D.
II.B.
Claims (25)
- マルチモーダルイメージング機器であって、
患者サポートの周りに少なくとも部分的に位置づけられた回転可能ガントリシステムと、
前記回転可能ガントリシステムに連結され、イメージング放射線のために構成された、第1の放射線源と、
前記回転可能ガントリシステムに連結され、イメージング放射線または治療放射線のうち少なくとも1つのために構成され、前記第1の放射線源よりも高いエネルギーレベルを有する、第2の放射線源と、
前記回転可能ガントリシステムに連結され、前記第1の放射線源または前記第2の放射線源のうち少なくとも1つからの放射線を受け取るように位置づけられた、第1の放射線検出器と、を備え、
前記第1の放射線源からの第1の測定されたプロジェクションデータが、前記第2の放射線源からの第2の測定されたプロジェクションデータよりも多い減衰を含み、前記第1の測定されたプロジェクションデータに関連する第1の減衰評価は、前記第2の測定されたプロジェクションデータに基づいている、マルチモーダルイメージング機器。 - 前記第1の放射線源が、最大150keVのキロ電子ボルトピーク光子エネルギー(keV)を備え、前記第2の放射線源が、1MeV以上のメガ電子ボルトピーク光子エネルギー(MeV)を含む、請求項1に記載の機器。
- 前記第2の放射線源が、3MeVのピークエネルギーおよび約1MeVの平均エネルギーを含む、請求項1に記載の機器。
- 前記第1の測定されたプロジェクションデータおよび前記第2の測定されたプロジェクションデータが、同時に取得される、または互いから約50ms内で取得される、請求項1に記載の機器。
- 前記第2の測定されたプロジェクションデータが、スパースプロジェクションデータを含む、請求項1に記載の機器。
- 前記第1の測定されたプロジェクションデータまたは前記第2の測定されたプロジェクションデータが、ヘリカルスキャン中に測定される、請求項1に記載の機器。
- 前記第1の測定されたプロジェクションデータまたは前記第2の測定されたプロジェクションデータが、全周スキャン中に測定される、請求項1に記載の機器。
- 前記第1の放射線源または前記第2の放射線源により放出された放射線ビームの形状を調整するように構成された、少なくとも1つのビームフォーマを更に備える、請求項1に記載の機器。
- 前記第1の放射線源または前記第2の放射線源のうち少なくとも1つが、ファンビーム形状を生成するように構成される、請求項1に記載の機器。
- 前記第1の放射線源または前記第2の放射線源のうち少なくとも1つが、コーンビーム形状を生成するように構成される、請求項1に記載の機器。
- 前記第1の減衰評価および前記第1の測定されたプロジェクションデータに基づき、再構成画像を生成するように構成された再構成プロセッサを更に備える、請求項1に記載の機器。
- 前記第1の測定されたプロジェクションデータが、前記第2の測定されたプロジェクションデータよりも多い散乱を含み、前記第1の測定されたプロジェクションデータに関連する第1の散乱評価が、前記第2の測定されたプロジェクションデータに基づいている、請求項1に記載の機器。
- 前記第1の測定されたプロジェクションデータが第1の周波数で測定され、前記第2の測定されたプロジェクションデータが第2の周波数で測定され、前記第1の周波数は前記第2の周波数よりも少なく、前記第1の測定されたプロジェクションデータの補間が前記第2の測定されたプロジェクションデータに基づいている、請求項1に記載の機器。
- 前記第1の測定されたプロジェクションデータが第1の周波数で測定され、前記第2の測定されたプロジェクションデータが第2の周波数で測定され、前記第1の周波数は前記第2の周波数よりも少なく、前記第1の測定されたプロジェクションデータの動き評価が、前記第2の測定されたプロジェクションデータに基づいている、請求項1に記載の機器。
- 前記第1の放射線源が前記回転可能ガントリシステムの第1の回転可能ガントリに連結され、前記第2の放射線源が前記回転可能ガントリシステムの第2の回転可能ガントリに連結される、請求項1に記載の機器。
- 第2の放射線検出器を更に備え、前記第1の放射線検出器が前記第1の放射線源からの放射線を受け取るように位置づけられ、前記第2の放射線検出器が前記第2の放射線源からの放射線を受け取るように位置づけられる、請求項1に記載の機器。
- 前記第1の測定されたプロジェクションデータが、第1の時間で積分され、前記第2の測定されたプロジェクションデータが、第2の時間で積分され、前記第1の時間は前記第2の時間よりも長く、前記第1の測定されたプロジェクションデータの再構成が、前記第2の測定されたプロジェクションデータに基づいている、請求項1に記載の機器。
- 前記第1の測定されたプロジェクションデータおよび前記第2の測定されたプロジェクションデータが順次取得される、請求項1に記載の機器。
- マルチモーダルイメージング機器を用いた画像アーチファクトの補正の方法であって、
イメージング放射線のために構成された第1の放射線源から、第1の測定されたプロジェクションデータを受け取ることと、
イメージング放射線または治療放射線のうち少なくとも1つのために構成され、前記第1の放射線源よりも高いエネルギーレベルを有する第2の放射線源から、第2の測定されたプロジェクションデータを受け取り、前記第1の測定されたプロジェクションデータが、前記第2の測定されたプロジェクションデータよりも多くの減衰を含むことと、
前記第2の測定されたプロジェクションデータに基づき、前記第1の測定されたプロジェクションデータに関連する第1の減衰評価を決定することと、を含む、方法。 - 前記第1の測定されたプロジェクションデータおよび前記第2の測定されたプロジェクションデータが、同時に取得される、または互いから50ms内で取得される、請求項19に記載の方法。
- 前記第1の減衰評価および前記第1の測定されたプロジェクションデータに基づき、画像を再構成することを更に含む、請求項19に記載の方法。
- 患者のレジストレーションワークフロー中、前記再構成画像に基づき患者を登録することを更に含む、請求項21に記載の方法。
- 適応可能な計画ワークフロー中、前記再構成画像に基づき治療計画を修正することを更に含む、請求項21に記載の方法。
- 前記再構成画像に基づき、前記患者に供給される治療線量を計算することを更に含む、請求項21に記載の方法。
- 放射線治療供給装置であって、
患者サポートの周りに少なくとも部分的に位置づけられた回転可能ガントリシステムと、
前記回転可能ガントリシステムに連結され、イメージング放射線のために構成されている第1の放射線源と、
前記回転可能ガントリシステムに連結され、イメージング放射線または治療放射線のうち少なくとも1つのために構成され、前記第1の放射線源よりも高いエネルギーレベルを有する、第2の放射線源と、
前記回転可能ガントリシステムに連結され、かつ前記第1の放射線源または前記第2の放射線源のうち少なくとも1つから、放射線を受け取るように位置づけられた、第1の放射線検出器と、を備え、
前記第1の放射線源からの第1の測定されたプロジェクションデータが、前記第2の放射線源からの第2の測定されたプロジェクションデータよりも多い減衰を含み、前記第1の測定されたプロジェクションデータに関連する第1の減衰評価が、前記第2の測定されたプロジェクションデータに基づいており、
放射線治療供給装置は更に、
データ処理システムであって、
前記第1の放射線源および前記第2の放射線源からの測定されたプロジェクションデータを受け取り、前記第1の放射線源からの第1の測定されたプロジェクションデータが、前記第2の放射線源からの第2の測定されたプロジェクションデータよりも多い減衰を含むように構成され、
前記第2の測定されたプロジェクションデータに基づき前記第1の測定されたプロジェクションデータに関連する第1の減衰評価を決定するように構成され、
IGRT中に画像を再構成するため、前記第1の測定されたプロジェクションデータと前記第1の減衰評価を組み合わせるように構成される、データ処理システムと、を備える、放射線治療供給装置。
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