1. A fast cardiac electromechanics model coupling the Eikonal and the nonlinear mechanics equations.
- Author
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Stella, Simone, Regazzoni, Francesco, Vergara, Christian, Dedé, Luca, and Quarteroni, Alfio
- Subjects
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NONLINEAR mechanics , *NONLINEAR equations , *TISSUE mechanics , *CONTRACTILITY (Biology) , *BLOOD circulation , *CIRCULATION models , *ELECTROPHYSIOLOGY - Abstract
We present a new model of human cardiac electromechanics for the left ventricle where electrophysiology is described by a Reaction–Eikonal model and which enables an off-line resolution of the reaction model, thus entailing a big saving of computational time. Subcellular dynamics is coupled with a model of tissue mechanics, which is in turn coupled with a Windkessel model for blood circulation. Our numerical results show that the proposed model is able to provide a physiological response to changes in certain variables (end-diastolic volume, total peripheral resistance, contractility). We also show that our model is able to reproduce with high accuracy and with a considerably lower computational time the results that we would obtain if the monodomain model should be used in place of the Eikonal model. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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