Intra-cardiac echographies :
computing myocardium deformations

Collaboration : Methodist Hospital Research Institute / Dirar Khoury MD
Center for Mathematical Biosciences / Robert Azencott , Yi Peng Li
Data : Ultra-sound movies of beating heart (30 views / sec)
Goal : Automatic extraction of Myocardium motion field
Challenge : Presence of strong random “Speckle Noise”
Mathematics : Minimize a Stochastic Cost Functional to extract a vector field of non linear deformations


Intra-Cardiac Echography of Left-Ventricule :
Computed Myocardium Deformation Vector Field



IntraCardiac Echography :
Left Ventricule viewed at time T and T + 0.1 s