Assessment of Global Left Ventricle Deformation Using Recursive Spherical Harmonics

Abstract

In this paper, the Heart Left Ventricle is modelised using a set of recursive spherical harmonics. We model the left ventricle in a compact and relevant way and secondly, it permits to define a global deformation of the anatomical structure between systole and diastole phases by applying Recursive Spherical Harmonics are applied on three left ventricle meshes acquired from cardiac pet scan to analyze their deformation during the cardiac cycle, evaluate cardiac global function and diagnose ventricular diseases. Experimental results proved the efficiency and accuracy of the present method compared to classical spherical harmonics modeling in terms of necessary number of coefficients and running time.