Proceedings of the First International Workshop on Functional Imaging and Modeling of the Heart
Proceedings of the First International Workshop on Functional Imaging and Modeling of the Heart
Modules in Cardiac Modeling: Mechanics, Circulation, and Depolarization Wave
Proceedings of the First International Workshop on Functional Imaging and Modeling of the Heart
A Physiologically-Based Model for the Active Cardiac Muscle Contraction
Proceedings of the First International Workshop on Functional Imaging and Modeling of the Heart
A Biomechanical Model of Muscle Contraction
MICCAI '01 Proceedings of the 4th International Conference on Medical Image Computing and Computer-Assisted Intervention
Proceedings of the 2nd international conference on Functional imaging and modeling of the heart
FIMH'03 Proceedings of the 2nd international conference on Functional imaging and modeling of the heart
FIMH'11 Proceedings of the 6th international conference on Functional imaging and modeling of the heart
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In this article, we present a framework to estimate local myocardium contractility using clinical MRI, a heart model and data assimilation. First, we build a generic anatomical model of the ventricles including muscle fibre orientations and anatomical subdivisions. Then, this model is deformed to fit a clinical MRI, using a semi-automatic fuzzy segmentation, an affine registration method and a local deformable biomechanical model. An electromechanical model of the heart is then presented and simulated. Data assimilation makes it possible to estimate local contractility from given displacements. Presented results on adjustment to clinical data and on assimilation with simulated data are very promising. Current work on model calibration and estimation of patient parameters open up possibilities to apply this framework in a clinical environment.