PubMed · 5178606
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D I Munson, C B Ruiz. Violeta A. Salarda.. https://pubmed.ncbi.nlm.nih.gov/5178606/
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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.
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A 49-year-old man, who had suffered from acute myocardial infarction due to left main trunk occlusion, developed cardiogenic shock and was successfully treated with an implantation of a left ventricular assist system with left ventricular apical drainage. At present he is awaiting a heart transplant at approximately 485 days since the operation. The timely application of a left ventricular assist system before the development of multiple organ failure is thus considered to be effective for patients demonstrating acute myocardial infarction with cardiogenic shock.