Razvan Ioan Ionasec,Dime Vitanovski,Alexey Tsymbal,Gareth Funka-Lea,Dorin Comaniciu,Andreas Greiser,Edgar Mueller
申请号：
US13416168
公开号：
US09196049B2
申请日:
2012.03.09
申请国别(地区):
US
年份:
2015
代理人:
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.
