Electrogastrogram simulation using a three-dimensional model.

The recording of gastric electrical activity using cutaneous electrodes is known as electrogastrography, and the recorded electrogastrogram comprises the electrical control activity and the contraction-related electrical response activity. The electrogastrogram has been simulated using a three-dimensional model that takes the effect of inhomogeneities into consideration. The model reproduces the electrical control activity and the second component of the electrical response activity. Spike activity is not reproduced. The increase in amplitude towards the antrum and the phase coupling between various regions is reflected in the simulated electrogastrogram. There is a possibility of determining the velocity of propagation from the phase difference with electrodes located above the antrum.