Motion-guided Segmentation of the Left Ventricle for Cine DENSE MRI
Spottiswoode B, Zhong X, Mayosi B, Meintjes E, Epstein F, Lorenz C
University of Cape Town
Cine DENSE MRI allows myocardial motion to be tracked through the cardiac cycle at a high spatial resolution. We introduce a novel segmentation method that uses the encoded motion in the myocardium to guide a set of contours through time. The method is successfully validated in 320 out of 336 images (95.2%). This algorithm reduces the total user interaction in cine DENSE analysis to the manual demarcation of the myocardium for a single frame. The method is fast and independent of the cardiac imaging plane and the shape of the predefined contour.