发明授权
- 专利标题： Method of noninvasive myocardial motion analysis using bidirectional motion intergration in phase contrast MRI maps of myocardial velocity
- 专利标题（中）： 无创心肌运动分析方法采用双向运动整合相位对比MRI图，心肌速度
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申请号： US921804申请日： 1992-07-28
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公开(公告)号： US5257626A公开(公告)日： 1993-11-02
- 发明人: Norbert J. Pelc , Douglas C. Noll , John M. Pauly
- 申请人： Norbert J. Pelc , Douglas C. Noll , John M. Pauly
- 申请人地址： CA Stanford
- 专利权人： Board of Trustees of the Leland Stanford Junior University
- 当前专利权人： Board of Trustees of the Leland Stanford Junior University
- 当前专利权人地址： CA Stanford
- 主分类号： G01R33/561
- IPC分类号： G01R33/561 ; G01R33/563 ; G01R33/567 ; A61B5/055 ; A61B8/00
摘要：
Measures of a velocity component during a plurality of time frames of cyclical motion of a region of interest are obtained using contrast cine MRI techniques. Trajectories of the region of interest are calculated in a backward direction and in a forward direction. The trajectories are then combined to define a motion trajectory. The forward and backward trajectories are weighted prior to combining with the forward trajectory being more heavily weighted for early frames and the backward trajectory being more heavily weighted for late frames.
公开/授权文献
- US4193191A Turret punch 公开/授权日：1980-03-18
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