Vector Field Analysis of the Dynamics of the Heartusing Velocity Encoded Cine MR Imaging
نویسنده
چکیده
Understanding of the dynamics of the heart is required for the prevention and treatment of cardiac related diseases as well as for the design of pacemakers and artiicial hearts. We present a new method for the analysis of myocardium motion and deformation based on the study of velocity encoded NMR images. By applying a few mathematical operators on the semi{automatically segmented image of the left ventricle muscle, we compute quantities that describe the dynamics of the heart and provide with a simpli-ed evaluation of its overall performance. The method needs little human interaction and could be used by physicians as a valuable indicator of the contractility of the heart. Since displacement, twist, contraction, strain and torsion are computed from analytic expressions, the method can also be used to evaluate the performance of models for the heart.
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تاریخ انتشار 1995