发明名称 |
Method and System for Regression-Based 4D Mitral Valve Segmentation From 2D+t Magnetic Resonance Imaging Slices |
摘要 |
A system and method for regression-based segmentation of the mitral valve in 2D+t cardiac magnetic resonance (CMR) slices is disclosed. The 2D+t CMR slices are acquired according to a mitral valve-specific acquisition protocol introduced herein. A set of mitral valve landmarks is detected in each 2D CMR slice and mitral valve contours are estimated in each 2D CMR slice based on the detected landmarks. A full mitral valve model is reconstructed from the mitral valve contours estimated in the 2D CMR slices using a trained regression model. Each 2D CMR slice may be a cine image acquired over a full cardiac cycle. In this case, the segmentation method reconstructs a patient-specific 4D dynamic mitral valve model from the 2D+t CMR image data.
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申请公布号 |
US2012232379(A1) |
申请公布日期 |
2012.09.13 |
申请号 |
US201213416168 |
申请日期 |
2012.03.09 |
申请人 |
IONASEC RAZVAN IOAN;VITANOVSKI DIME;TSYMBAL ALEXEY;FUNKA-LEA GARETH;COMANICIU DORIN;GREISER ANDREAS;MUELLER EDGAR;SIEMENS CORPORATION |
发明人 |
IONASEC RAZVAN IOAN;VITANOVSKI DIME;TSYMBAL ALEXEY;FUNKA-LEA GARETH;COMANICIU DORIN;GREISER ANDREAS;MUELLER EDGAR |
分类号 |
A61B5/055 |
主分类号 |
A61B5/055 |
代理机构 |
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