发明授权
- 专利标题: Reconstruction of an image of a moving object from volumetric data
- 专利标题(中): 从体积数据重建移动物体的图像
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申请号: US10564572申请日: 2004-07-07
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公开(公告)号: US07545903B2公开(公告)日: 2009-06-09
- 发明人: Thomas Köhler , Michael Grass , Michael Harald Kuhn , Roland Proksa
- 申请人: Thomas Köhler , Michael Grass , Michael Harald Kuhn , Roland Proksa
- 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: EP03102178 20030716
- 国际申请: PCT/IB2004/051150 WO 20040707
- 国际公布: WO2005/008597 WO 20050127
- 主分类号: A61B6/03
- IPC分类号: A61B6/03
摘要:
In the CT imaging of non-homogeneously moving objects such as the heart or the coronary vessel tree, there is a problem that different parts of the objects are at rest at different points in time. Thus, a gated reconstruction with a globally selected time point does not yield a sharp image of such objects. According to the present invention, a motion of the objects is estimated, describing the motion of selected regions of these objects. Then, on the basis of the estimated motion, time points are determined, where these areas have minimal motion. Then, an image is reconstructed, wherein the data from which the respective regions are reconstructed, correspond to the respective time points, where the regions have minimal motion. Due to this, an improved image qualify maybe provided.
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