234 心臓左心室内の数値血流解析

概要

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An efficient, image-based, computational modeling method for computational fluid dynamic study of left ventricle (LV) haemodynamics is presented. A Two-Chamber-View modeling method is proposed for reconstructing an anatomically realistic model of left ventricle, which is based on ultrasonographic images of two mutually perpendicular slice sections align with the long-axis. Each cross section of the short-axis is approximated as an ellipse with two radii determined from the extracted endocardial borderline, and is stacked up from the apex to the mitral- and aortic-valve planes to generate a fully three-dimensional geometric LV model. the computed results indicate that realistic modeling of both geometry and physiological conditions of left ventricle is of great importance in correctly predicting the behavior of the strong vortex flow patterns and their influence on the heart function.
社団法人日本機械学会の論文
2002-09-20