Fractional diffusion models of cardiac electrical propagation: role of structural heterogeneity in dispersion of repolarization

Alfonso Bueno-Orovio; David Kay; Vicente Grau; Blanca Rodriguez; Kevin Burrage

doi:10.1098/rsif.2014.0352

Figure 3.

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Peak value distributions (μA/μF) for predominant currents during depolarization. Results are presented for human (a,c,e) and canine (b,d,f) cell models, measured in a tissue cable of 4 cm length stimulated at its boundary. Despite displaying same magnitudes at the distal boundary, fractional propagation models (α < 2) significantly increase the range of influence of this region compared with standard diffusion (α = 2). (Online version in colour.)