<![CDATA[We discuss about development of a new method of tracking closed contourwhich is based on a Harmonic State Model (HSM), in order to carry out thetracking of Left Ventricle (LV) during all the cardiac cycle. The Lionel'smethod provides us the trajectories of the I.V contour from the tracking ofmotion during the cardiac cycle, and information necessary to the analysisof the cardiac motion. Using the HSM model allows a robust and correctmodeling of closed contour. The application in simulation of Lionels methodgives satisfactory results. On the real data extracted from MRI sequences,the calculated trajectories, points of the LV contour throughout the cardiaccycle, allow to have a clearly visible difference between a healthy heart anda pathological heart.]]>
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