Left-ventricle myocardium segmentation using a coupled level-set with a priori knowledge

✍ Scribed by M. Lynch; O. Ghita; P.F. Whelan

• Publisher: Elsevier Science
• Year: 2006
• Tongue: English
• Weight: 476 KB
• Volume: 30
• Category: Article
• ISSN: 0895-6111
• DOI: 10.1016/j.compmedimag.2006.03.009

✦ Synopsis

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.