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Right Ventricle Segmentation by Temporal Information Constrained Gradient Vector Flow

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7 Author(s)
Xulei Yang ; Comput. Sci. Dept., ASTAR, Singapore, Singapore ; Si Yong Yeo ; Yi Su ; Lim, C.
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Evaluation of right ventricular (RV) structure and function is of importance in the management of most cardiac disorders. But the segmentation of RV has always been considered challenging due to low contrast of the myocardium with surrounding and high shape variability of the RV. In this paper, we present a 2D + T active contour model for segmentation and tracking of RV endocardium on cardiac magnetic resonance (MR) images. To take into account the temporal information between adjacent frames, we propose to integrate the time-dependent constraints into the energy functional of the classical gradient vector flow (GVF). As a result, the prior motion knowledge of RV is introduced in the deformation process through the time-dependent constraints in the proposed GVF-T model. A weighting parameter is introduced to adjust the weight of the temporal information against the image data itself. The additional external edge forces retrieved from the temporal constraints may be useful for the RV segmentation, such that lead to a better segmentation performance. The effectiveness of the proposed approach is supported by experimental results on synthetic and cardiac MR images.

Published in:

Systems, Man, and Cybernetics (SMC), 2013 IEEE International Conference on

Date of Conference:

13-16 Oct. 2013

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