This paper addresses the numerical simulations of electrograms in an anisotropic model of the left ventricle. To accurately compute electrograms (EGs), inside or outside the myocardial wall, a special numerical technique is taken into account. The EGs were compared with those directly recorded from isolated dog hearts immersed in a conducting medium during ventricular excitation and epicardial stimulation. The same multiphasic structure was observed for the recorded and simulated EGs. The typical EG morphology was studied considering a splitting of the EGs into an axial and a conormal component and taking into account the effect of a drift component associated to the reference potential.
Numerical simulations of electrograms in the left ventricular wall
M Pennacchio;P Colli Franzone;
2000-01-01
Abstract
This paper addresses the numerical simulations of electrograms in an anisotropic model of the left ventricle. To accurately compute electrograms (EGs), inside or outside the myocardial wall, a special numerical technique is taken into account. The EGs were compared with those directly recorded from isolated dog hearts immersed in a conducting medium during ventricular excitation and epicardial stimulation. The same multiphasic structure was observed for the recorded and simulated EGs. The typical EG morphology was studied considering a splitting of the EGs into an axial and a conormal component and taking into account the effect of a drift component associated to the reference potential.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.