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Epi-, endo- and myocardial contributions to the body surface potential

The contribution of the epi- and endocardial as well as the myocardial electrical activity to the body surface potentials was investigated in this study. A volume conductor model including a realistic anisotropic ventricular model was built up and the forward problem of electrocardiography was solved for four different rhythms. The results show, that the body surface potentials depend to a high degree on the epi- and endocardial electrical activity during depolarization.