发明申请
- 专利标题: REDUCTION OF HEART MOTION ARTIFACTS IN THORACIC CT IMAGING
- 专利标题(中): 减少心脏CT成像中心脏运动的影响
-
申请号: US12438952申请日: 2007-08-27
-
公开(公告)号: US20100014736A1公开(公告)日: 2010-01-21
- 发明人: Hans Barschdorf , Jens Von Berg , Michael Harald Kuhn , Cristian Lorenz , Thomas Blaffert
- 申请人: Hans Barschdorf , Jens Von Berg , Michael Harald Kuhn , Cristian Lorenz , Thomas Blaffert
- 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
- 优先权: EP06119663.0 20060829
- 国际申请: PCT/IB07/53403 WO 20070827
- 主分类号: G06K9/32
- IPC分类号: G06K9/32 ; G06K9/00
摘要:
The invention relates to a system (100) for adapting a plurality of model meshes to a plurality of image data, the system comprising a registration unit (110) for registering the plurality of model meshes with the plurality of image data on the basis of a computation of a registration transformation for transforming the plurality of model meshes, and an adaptation unit (120) for adapting the plurality of registered model meshes to the plurality of image data on the basis of a computation of locations of mesh vertices of the plurality of model meshes. The system (100) may further comprise a computing unit (130) for computing sparse vector fields comprising vectors of displacements of vertices of the adapted model meshes, an approximation unit (140) for computing dense vector fields on the basis of the sparse vector fields, a merge unit (150) for merging image data sets by means of the computed dense vector fields, and a reconstruction unit (155) for reconstructing a motion-compensated image data from the computed dense vector fields. The described system (100) is capable of reducing motion artifacts in tomographic images computed from data acquired at a plurality of different cardiac cycle phases.
公开/授权文献
- US08233691B2 Reduction of heart motion artifacts in thoracic CT imaging 公开/授权日:2012-07-31
信息查询