Numerical simulations
using the Aliev-Panfilov model
(series 01)

Fig 1. Field model of excitable medium by Aliev and Panfilov (R. Aliev, A.Panfilov. Chaos, Solitons & Fractals 1996;7(3)).

In 2006 we performed some theoretical investigation of dependance of indexes of ECG variability on myocardium state during ventricular arrhythmia. In this investigation in silico we reproduced a series of reentrant arrhythmias using the Aliev-Panfilov model of excitable media, with ECG registration in a number of points under the "virtual myocarium" being obtained. Appearance of the Aliev-Panfilov model (AP) see in Fig 1.

Before we show some interested peculiarities of ventricular arrhythmias reproduced by the AP-model and detected by the ANI-method (see Biophysics 2003;48(2)). In this series of simulation we walked with step Da=0.005 in the range 0.080 £ a £ 0.200, with the other parameters being fixed as previously: m₂ is equal to 0.3 or to 1.3, m₁=0.2, k=8.0 and e₀=0.01. The simulations are performed with the computer programm developed by Yu.E. Elkin AutoWaveModelling, version Dec 2003. "Photos" of the spiral waves obtained under different values of the parameter, a, see here .

ECGs obtained under different values of the parameter, a, see here .

ANI-portraits obtained under different values of the parameter, a, see here .