Left-ventricle myocardium segmentation using a coupled level-set with a priori knowledge.
Comput Med Imaging Graph
; 30(4): 255-62, 2006 Jun.
Article
em En
| MEDLINE
| ID: mdl-16781117
ABSTRACT
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.
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Base de dados:
MEDLINE
Assunto principal:
Ventrículos do Coração
Limite:
Humans
Idioma:
En
Ano de publicação:
2006
Tipo de documento:
Article