Abstract
The analysis of cardiac scintigraphic sequences is commonly realized with the help of functional or parametric images. The decomposition of the original sequence into a linear combination of the main temporal behaviors yields, after orthogonalization, a set of parametric images representing the pure temporal behaviors present in the original data. The properties of these images are used to extract automatically the left ventricular boundary. The Fourier descriptors method is then used to get a quantified analysis of the shape of the ventricle. Because of their property of invariance by change of scale, the Fourier descriptors method applied on a sequence of left ventricular contours yields a quantified assessment of the cardiac contraction.
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