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- W3015514609 abstract "Efficient numerical simulation of cardiac electrophysiology is essential for studying the transmembrane potential propagation in the heart. The comprehensive bidomain model, involving two coupled nonlinear partial differential equations, has been used to study cardiac propagation. The anisotropic conductive anatomy, steep wavefront, stiffness of the equations, and multi-scale properties pose significant computational challenges. In this work, the computational efficiency is increased by implementing higher order approximations of the spatial derivatives for the finite difference time domain solution of the bidomain equations. Lagrangian interpolating polynomials with different orders are used to expand the unknowns in approximations with different orders of accuracy. Time stepping is achieved with a semi-implicit technique. Numerical tests show that the error reduces when the order of the finite difference approximation is increased, and the improvement in accuracy becomes insignificant after the eighth order." @default.
- W3015514609 created "2020-04-17" @default.
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- W3015514609 date "2019-08-01" @default.
- W3015514609 modified "2023-09-26" @default.
- W3015514609 title "Higher Order Finite Difference Bidomain Modeling of Cardiac Propagation" @default.
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- W3015514609 doi "https://doi.org/10.23919/aces48530.2019.9060539" @default.
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