Journal
COMPUTERIZED MEDICAL IMAGING AND GRAPHICS
Volume 30, Issue 4, Pages 255-262Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compmedimag.2006.03.009
Keywords
level-set; segmentation; cardiac; left-ventricle; coupled; a priori kowledge
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This paper presents a coupled level-set segmentation of the myocardium of the left ventricle of the heart using a priori information. From a fast marching initialisation, two fronts representing the endocardium and epicardium boundaries of the left ventricle are evolved as the zero level-set of a higher dimension function. We introduce a novel and robust stopping term using both gradient and region-based information. The segmentation is supervised both with a coupling function and using a probabilistic model built from training instances. The robustness of the segmentation scheme is evaluated by performing a segmentation on four unseen data-sets containing high variation and the performance of the segmentation is quantitatively assessed. (c) 2006 Elsevier Ltd. All rights reserved.
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