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In cases of pressure or volume overload, probing cardiac function may bedifficult because of the interactions between shape and deformations.In thiswork, we use the LDDMM framework and parallel transport to estimate andreorient deformations of the right ventricle. We then propose a normalizationprocedure for the amplitude of the deformation, and a second-order spline modelto represent the full cardiac contraction. The method is applied to 3D meshesof the right ventricle extracted from echocardiographic sequences of 314patients divided into three disease categories and a control group. We findsignificant differences between pathologies in the model parameters, revealinginsights into the dynamics of each disease.

Cardiac Motion Modeling with Parallel Transport and Shape Splines