Browsing Faculté de médecine – Travaux et publications by Subject "Reaction-diffusion system"
Now showing items 1-4 of 4
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Eikonal-based initiation of fibrillatory activity in thin-walled cardiac propagation models
(American Institute of Physics, 2011-12-22)Reentrant arrhythmias can be simulated in electrophysiological models of electrical impulse propagation governed by a reaction-diffusion system. To facilitate the initiation of a large number of independent episodes of simulated arrhythmias with ... -
Geometrical measurement of cardiac wavelength in reaction-diffusion models
(American Institute of Physics, 2014)The dynamics of reentrant arrhythmias often consists in multiple wavelets propagating throughout an excitable medium. An arrhythmia can be sustained only if these reentrant waves have a sufficiently short wavelength defined as the distance traveled ... -
Simulation of atrial fibrillation in a non-ohmic propagation model with dynamic gap junctions
(American Institute of Physics, 2022-04-11)Gap junctions exhibit nonlinear electrical properties that have been hypothesized to be relevant to arrhythmogenicity in a structurally remodeled tissue. Large-scale implementation of gap junction dynamics in 3D propagation models remains challenging. ... -
Time resolution for wavefront and phase singularity tracking using activation maps in cardiac propagation models
(American Institute of Physics, 2020-03-19)The dynamics of cardiac fibrillation can be described by the number, the trajectory, the stability, and the lifespan of phase singularities (PSs). Accurate PS tracking is straightforward in simple uniform tissues but becomes more challenging as fibrosis, ...