JP5538880B2 - 4面体ビームコンピュータ断層撮影 - Google Patents
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Description
出願者は、合衆国法典第35巻第119条(e)に基づいて、2006年4月14日に出願された米国仮特許出願第60/792,207号の上述の出願日の優先権の利益を主張するものであり、該特許の内容全体は引用により本明細書に組み入れられる。
Claims (15)
- コーンビームコンピュータ断層撮影システムであって、
X線ビームを放出するX線源と、
スロットと、
を備え、
前記スロットは、前記X線源の周囲を回転し、前記X線ビームを遮ることにより、複数の扇形のX線ビームが前記スロットから被検体へ向けて発散されるようにし、前記複数の扇形のX線ビームは一群としてコーンビームを構成し、前記コーンビームコンピュータ断層撮影システムはさらに、
前記被検体を通過した後に扇形のX線を受け取り、前記受け取った扇形のX線の各々に対して撮像信号を生成する検出器と、を備え、前記検出器によって受け取られた前記複数の扇形のX線は一群としてコーンビームを構成し、
前記検出器に接続されて、前記受け取った扇形のX線の各々に対する前記撮像信号を受け取り、前記X線源、前記スロット及び前記検出器が前記被検体の周囲を回転することにより、複数の撮像信号を再構築して3次元コーンビームコンピュータ断層撮影画像を生成するコンピュータと、
前記コンピュータに接続され、前記3次元コーンビームコンピュータ断層撮影画像を表示するディスプレイと、
を備えることを特徴とするコーンビームコンピュータ断層撮影システム。 - 前記X線源は陽極及び陰極を含み、前記陰極は、前記陽極が占有する複数の別個の空間領域にぶつかる電子を放出する、
ことを特徴とする請求項1に記載のコーンビームコンピュータ断層撮影システム。 - 前記X線源は、陽極及び陰極を含み、前記陰極は前記陽極にぶつかる電子を放出し、該陽極にぶつかる該電子の電流を調節することにより、前記複数の扇形のX線ビームの各々の強度が調節される、
ことを特徴とする請求項1に記載のコーンビームコンピュータ断層撮影システム。 - 複数の扇形のX線ビームを被検体へ向けるステップを含み、このステップにおいて、X線源の周囲を回転する移動コリメータにより前記単一のX線ビームが平行にされ、前記複数の扇形のX線ビームは一群としてコーンビームを構成し、
前記複数の扇形のX線ビームを向けるステップの結果前記被検体を通過するX線を検出するステップと、
前記検出されたX線から前記被検体に関する複数の撮像データを生成するステップと、
前記複数の撮像データから3次元コーンビームコンピュータ断層撮影画像を形成するステップと、
前記3次元コーンビームコンピュータ断層撮影画像を表示するステップと、
含むことを特徴とする被検体を撮像する方法。 - 前記方向付けステップは、X線源の陽極の異なる領域からX線ビームを連続的に形成するステップを含む、
ことを特徴とする請求項4に記載の方法。 - 前記方向付けステップは、前記X線源の単一の陰極から前記異なる領域へ電子を連続的に方向付けることにより、前記陽極の前記異なる領域からX線ビームを連続的に形成するステップを含む、
ことを特徴とする請求項5に記載の方法。 - デジタルトモシンセシスシステムであって、
X線ビームを放出するX線源と、
スロットと、
を備え、
前記スロットは、前記X線源に対して動き、前記X線ビームを遮ることにより、複数の扇形のX線ビームが前記スロットから被検体へ向けて発散されるようにし、前記デジタルトモシンセシスシステムはさらに、
前記被検体を通過した後に扇形のX線を受け取り、前記受け取った扇形のX線の各々に対して撮像信号を作成する検出器と、
前記検出器に接続されて、前記受け取った扇形のX線の各々に対する前記撮像信号を受け取り、前記X線源、前記スロット及び前記検出器が前記被検体の周囲を回転することにより、複数の撮像信号を再構築してデジタルトモシンセシス画像を生成するコンピュータと、
前記コンピュータに接続され、前記デジタルトモシンセシス画像を表示するディスプレイと、
を備えることを特徴とするデジタルトモシンセシスシステム。 - 前記X線源は陽極及び陰極を含み、前記陰極は、前記陽極が占有する複数の別個の空間領域にぶつかる電子を放出する、
ことを特徴とする請求項7に記載のデジタルトモシンセシスシステム。 - 前記X線源は標的にぶつかる粒子源を含み、該標的にぶつかる該粒子の電流を調節することにより、前記複数の扇形のX線ビームの各々の強度が調節される、
ことを特徴とする請求項7に記載のデジタルトモシンセシスシステム。 - 4面体ビームコンピュータ断層撮影システムであって、
走査方向に沿う異なる位置において複数のX線ビームを連続的に放出するX線源と、
コリメータと、
を備え、
前記コリメータは、前記複数のX線ビームを遮ることにより、4面体容積を形成する複数の扇形のX線ビームが前記コリメータから被検体へ向けて発散されるようにし、前記4面体ビームコンピュータ断層撮影システムはさらに、
前記扇形のX線が前記被検体を通過した後に前記扇形のX線を受け取り、前記受け取った扇形のX線の各々に対して撮像信号を生成する検出器と、
前記検出器に接続されて、前記受け取った扇形のX線の各々に対する前記撮像信号を受け取り、前記X線源、前記コリメータ及び前記検出器が前記被検体の周囲を回転することにより、複数の撮像信号を再構築して3次元4面体ビームコンピュータ断層撮影画像を生成するコンピュータと、
前記コンピュータに接続され、前記3次元4面体ビームコンピュータ断層撮影画像を表示するディスプレイと、
を備えることを特徴する4面体ビームコンピュータ断層撮影システム。 - 前記コリメータは複数のスロットを含み、前記複数の前記スロットの各々は前記異なる位置の1つに対応する、
ことを特徴とする請求項10に記載の4面体ビームコンピュータ断層撮影システム。 - 前記コリメータは前記X線源に対して固定される、
ことを特徴とする請求項11に記載の4面体ビームコンピュータ断層撮影システム。 - 前記X線源は、陽極と、前記走査方向に沿って位置合わせされた複数の異なる陰極とを含み、該複数の陰極の各々は、前記異なる位置に対応する前記陽極が占有する空間領域にぶつかる電子を放出する、
ことを特徴とする請求項10に記載の4面体ビームコンピュータ断層撮影システム。 - 前記X線源は、陽極と、前記走査方向に沿って位置合わせされた単一の陰極とを含み、前記単一の陰極の異なる領域から電子が放出されて、前記異なる位置に対応する前記陽極が占有する空間領域にぶつかるようにした、
ことを特徴とする請求項10に記載の4面体ビームコンピュータ断層撮影システム。 - 前記X線源を制御して、前記走査方向に沿う前記異なる位置において前記複数のX線ビームを連続的に放出させる制御装置をさらに含む、
ことを特徴とする請求項10に記載の4面体ビームコンピュータ断層撮影システム。
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US79220706P | 2006-04-14 | 2006-04-14 | |
US60/792,207 | 2006-04-14 | ||
PCT/US2007/008996 WO2007120744A2 (en) | 2006-04-14 | 2007-04-12 | Scanning slot cone-beam computed tomography and scanning focus spot cone-beam computed tomography |
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US10893912B2 (en) | 2006-02-16 | 2021-01-19 | Globus Medical Inc. | Surgical tool systems and methods |
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US8983024B2 (en) | 2006-04-14 | 2015-03-17 | William Beaumont Hospital | Tetrahedron beam computed tomography with multiple detectors and/or source arrays |
WO2008013598A2 (en) * | 2006-05-25 | 2008-01-31 | William Beaumont Hospital | Real-time, on-line and offline treatment dose tracking and feedback process for volumetric image guided adaptive radiotherapy |
US8073104B2 (en) * | 2006-05-25 | 2011-12-06 | William Beaumont Hospital | Portal and real time imaging for treatment verification |
EP2219525B1 (en) | 2007-08-23 | 2017-01-04 | Bearf, Llc | Improved computed tomography breast imaging and biopsy system |
US7936858B2 (en) * | 2007-09-28 | 2011-05-03 | Siemens Medical Solutions Usa, Inc. | System and method for tomosynthesis |
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EP2010058A2 (en) | 2009-01-07 |
JP6057188B2 (ja) | 2017-01-11 |
CN101466313A (zh) | 2009-06-24 |
CA2649320A1 (en) | 2007-10-25 |
JP2009533151A (ja) | 2009-09-17 |
EP2010058A4 (en) | 2011-05-18 |
CN102988074A (zh) | 2013-03-27 |
US7760849B2 (en) | 2010-07-20 |
CN102988073A (zh) | 2013-03-27 |
US20110002439A1 (en) | 2011-01-06 |
US20070280408A1 (en) | 2007-12-06 |
JP2014133183A (ja) | 2014-07-24 |
US8611490B2 (en) | 2013-12-17 |
CA2649320C (en) | 2011-09-20 |
WO2007120744A2 (en) | 2007-10-25 |
CN101466313B (zh) | 2012-11-14 |
WO2007120744A3 (en) | 2008-06-26 |
CN102961159A (zh) | 2013-03-13 |
EP2010058B1 (en) | 2017-05-17 |
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