发明授权
- 专利标题: Multi-tube imaging system scatter correction
- 专利标题(中): 多管成像系统散射校正
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申请号: US12305458申请日: 2007-06-13
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公开(公告)号: US07680241B2公开(公告)日: 2010-03-16
- 发明人: Bernd David , Michael Grass , Astrid Fatou Lewalter , Rainer Pietig
- 申请人: Bernd David , Michael Grass , Astrid Fatou Lewalter , Rainer Pietig
- 申请人地址: NL Eindhoven
- 专利权人: Koninklijke Philips Electronics N.V.
- 当前专利权人: Koninklijke Philips Electronics N.V.
- 当前专利权人地址: NL Eindhoven
- 国际申请: PCT/US2007/071095 WO 20070613
- 国际公布: WO2007/149749 WO 20071227
- 主分类号: A61B6/00
- IPC分类号: A61B6/00
摘要:
A computed tomography reconstruction method includes concurrently emitting radiation from at least two x-ray sources (14), switching the output state of each of the at least two x-ray sources (14) within a plurality of respective cross scatter sampling intervals (50, 52, 54, 56) and detecting with a corresponding one of the sets of detectors (24) cross scatter radiation emitted by the other at least two x-ray sources (14), wherein the cross scatter sampling intervals are angularly spaced over a plurality of frames to allow the at least two x-ray sources (14) to concurrently emit radiation throughout at least one frame, deriving scatter correction data for each set of detectors (24) from corresponding cross scatter samples, scatter correcting the projection data with corresponding scatter correction data, and reconstructing the scatter corrected projection data to generate at least one image.
公开/授权文献
- US20090279659A1 MULTI-TUBE IMAGING SYSTEM SCATTER CORRECTION 公开/授权日:2009-11-12
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