A simple model for ECG Simulation from pairs of action potentials, Normal subject

A simple technique is described for simulation of electrocardiogram (ECG) in terms of the myocardium action potential. The difference in potentials between different regions of ventricular wall at any time will create currents in the surrounding volume conductor. Endocardial and epicardial action potentials are constructed from four ionic currents. The magnitude of the gradient of these two action potentials in different parts of the ventricular wall define electrogram. In this study, ECG has been described as a weighted sum of the gradient of these pairs of action potential over the ventricular wall.