An Explicit Space-time Adaptive Method for Simulating Complex Cardiac Dynamics

Details An Explicit Space-time Adaptive Method for Simulating Complex Cardiac Dynamics An Explicit Space-time Adaptive Method for Simulating Complex Cardiac Dynamics

1999-08-04

arxiv.org/abs/physics/9908008v3

Physics

Computational Physics

4 pages (LaTeX), 3 color PostScript figure files, submitted to PRL; Changed content of one paragraph; Correcting corrupt fig2a

Scientific paper

10.1103/PhysRevLett.84.1343

For plane-wave and many-spiral states of the experimentally based Luo-Rudy 1 model of heart tissue in large (8 cm square) domains, we show that an explicit space-time-adaptive time-integration algorithm can achieve an order of magnitude reduction in computational effort and memory - but without a reduction in accuracy - when compared to an algorithm using a uniform space-time mesh at the finest resolution. Our results indicate that such an explicit algorithm can be extended straightforwardly to simulate quantitatively large-scale three-dimensional electrical dynamics over the whole human heart.

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