发明名称 |
Unifying reconstruction and motion estimation in first pass cardiac perfusion imaging |
摘要 |
Methods and a system to unify reconstruction and motion estimation steps in first pass cardiac perfusion MRI include a global objective function that meets data consistency, spatial smoothness, motion and contrast dynamics constraints. The global objective decomposed into simpler sub-problems which include low pass filtering of a deformed object, TV shrinkage, analytical Fourier replacement and an l2 minimizing problem. A registration tool based on the local cross-correlation similarity measure and enabled to perform both rigid and flexile deformations, is applied. Registration parameters are tuned by rigid, semi rigid and flexible models at different stages of iterations. A system to perform the methods is also disclosed.
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申请公布号 |
US8553964(B2) |
申请公布日期 |
2013.10.08 |
申请号 |
US201113273410 |
申请日期 |
2011.10.14 |
申请人 |
CHEFD'HOTEL CHRISTOPHE;JACOB MATHEWS;LINGALA SAJAN GOUD;NADAR MARIAPPAN S.;ZHANG LI;SIEMENS AKTIENGESELLSCHAFT |
发明人 |
CHEFD'HOTEL CHRISTOPHE;JACOB MATHEWS;LINGALA SAJAN GOUD;NADAR MARIAPPAN S.;ZHANG LI |
分类号 |
G06K9/00;A61B5/00;A61B8/00 |
主分类号 |
G06K9/00 |
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