In echocardiography, left ventricle detection is a common practice in order to retrieve indexes of myocardial health. Although a great attention has been given to the segmentation of the endocardium, very limited literature addresses the detection of both endo- and epicardial contours. Hereto, in this study we propose an original levelset technique specifically designed for the detection of the whole myocardium in short-axis ultrasound scans. A localized version of standard region-based methods is adopted, and allows to deal with low-contrast boundaries. Moreover, shape prior information is efficiently embedded in the evolution equation, thereby preventing the detection of undesired structures, like papillary muscles. An evaluation is presented on a set of 40 frames from 5 different patients. The proposed method is shown to be a reliable tool for an accurate segmentation of the full myocardium on ultrasound scans.

Segmentation of the Full Myocardium in Echocardiography using Constrained Level-Sets

ALESSANDRINI, MARTINO;SPECIALE, NICOLO'ATTILIO;
2010

Abstract

In echocardiography, left ventricle detection is a common practice in order to retrieve indexes of myocardial health. Although a great attention has been given to the segmentation of the endocardium, very limited literature addresses the detection of both endo- and epicardial contours. Hereto, in this study we propose an original levelset technique specifically designed for the detection of the whole myocardium in short-axis ultrasound scans. A localized version of standard region-based methods is adopted, and allows to deal with low-contrast boundaries. Moreover, shape prior information is efficiently embedded in the evolution equation, thereby preventing the detection of undesired structures, like papillary muscles. An evaluation is presented on a set of 40 frames from 5 different patients. The proposed method is shown to be a reliable tool for an accurate segmentation of the full myocardium on ultrasound scans.
Computer in Cardiology
409
412
M. Alessandrini; T. Dietenbeck; D. Barbosa; J. D'Hooge; O. Basset; N. Speciale; D. Friboulet; O. Bernard
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/97468
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