Generation of the Map of Myocardial Wall Thickness for Evaluation of Heart Function(International Forum on Medical Imaging in Asia 2009 (IFMIA 2009))

概要

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Heart thickness is very important index in quantitative evaluation of cardiac function. Previously, we had been calculated heart thickness from 3-D myocardial shape generated by linearly interpolation contour in axial slice. Therefore, it has problems that calculation of wall thickness depends on the detection accuracy. In this paper, we first extracted epi- and endocardial walls by level set method. We then approximated these extracted walls with 3D NURBS (Non-uniformed rational B-spline) model for accuracy improvement. We finally created a bull's eye map to evaluate wall thickness for easy visual understanding. As a result, this method suppressed the variation of the detection and smoothed bull's eye maps of wall thickness.
社団法人電子情報通信学会の論文
2009-01-12