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Cardiac Motion Modeling with Parallel Transport and Shape Splines

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Abstract

In cases of pressure or volume overload, probing cardiac function may be difficult because of the interactions between shape and deformations.In this work, we use the LDDMM framework and parallel transport to estimate and reorient deformations of the right ventricle. We then propose a normalization procedure for the amplitude of the deformation, and a second-order spline model to represent the full cardiac contraction. The method is applied to 3D meshes of the right ventricle extracted from echocardiographic sequences of 314 patients divided into three disease categories and a control group. We find significant differences between pathologies in the model parameters, revealing insights into the dynamics of each disease.
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Dates and versions

hal-03142196 , version 1 (17-02-2021)

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Nicolas Guigui, Pamela Moceri, Maxime Sermesant, Xavier Pennec. Cardiac Motion Modeling with Parallel Transport and Shape Splines. ISBI 2021 - 18th IEEE International Symposium on Biomedical Imaging, Apr 2021, Nice, France. pp. 1394-1397, ⟨10.1109/ISBI48211.2021.9433887⟩. ⟨hal-03142196⟩
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