Abstract #0794
             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.