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Abstract #4628

Computational Model of the Left Ventricle Motion Using Tagged Magnetic Resonance Imaging (TMRI)

Mohammed Dahawy Alenezy1, Tareq M. Alrefae2, Jack Shi1, Mehmet Bigen3

1Physics and Astronomy, University of Kansas, Lawrence, KS, USA; 2Kuwait University, Khaldiya, Kuwait, Kuwait; 3Radiology, Medical School of South Carolina, USA

A computational model is proposed to study the motion of left ventricle (LV) using tMRI data. The LV wall motion is decomposed into the deformation component ,along the short axis and the rotation component, along the long axis of LV. rotational motion is represented by 2-D non-linear rotational transformation and the deformation is described by a 1/r function. The tMRI data of Eight different subjects were studied . It was found that there is a significant difference in the deformation parameter between the diabetic and the healthy rats and human. There is no significant difference in the average twist between human and rat heart.The torsion of rat heart is, however, found to be substantially larger than that of human.