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Extraction of epi-cardium contours from unseen images using a shape database

Lynch, Michael and Ghita, Ovidiu and Whelan, Paul F. (2004) Extraction of epi-cardium contours from unseen images using a shape database. In: IEEE Symposium Conference Record Nuclear Science 2004, 16-22 October 2004, Rome, Italy. ISBN 0-7803-8700-7

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Abstract

Accurate segmentation of the myocardium in cardiac magnetic resonance images can be restricted by image noise and low discrimination between the epi-cardium boundary and other organs. Segmentation of the epi-cardium is important for the calculation of left ventricle mass. In this paper we propose a novel method of epi-cardium segmentation, which firstly segments the left ventricle cavity. The epi-cardium boundary is found using the edge information in the image, and where such information is lacking it enhances the shape with the best fitting scaled segment, taken from a database of expertly assisted hand segmented images. In the final stage the segments are connected using a natural closed spline. The method was evaluated using a leave-one-out strategy on 24 volumes and calculates the coefficient of determination as 0.93 and a root mean square of the point to curve error of 1.54 mm when compared to manually segmented images.

Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
Refereed:Yes
Uncontrolled Keywords:biomedical MRI; cardiovascular system; edge detection; feature extraction; image segmentation; mean square error methods; medical image processing; splines (mathematics); visual databases;
Subjects:Computer Science > Image processing
DCU Faculties and Centres:Research Initiatives and Centres > Research Institute for Networks and Communications Engineering (RINCE)
Published in:IEEE Symposium Conference Record Nuclear Science 2004. . Institute of Electrical and Electronics Engineers. ISBN 0-7803-8700-7
Publisher:Institute of Electrical and Electronics Engineers
Official URL:http://dx.doi.org/10.1109/NSSMIC.2004.1466681
Copyright Information:©2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
ID Code:15575
Deposited On:27 Jul 2010 14:39 by DORAS Administrator. Last Modified 27 Jul 2010 14:39

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