Theoretical ellipsoidal model of gastric electrical control activity propagation.
A theoretical model of electric current propagation in the human stomach is developed using an approach in which the shape of the organ is assumed to be a truncated ellipsoid whose dimensions can be determined from anatomic measurements. The gastric electrical activity is simulated using a ring of isopotential electric current dipoles that are generated by a pacemaker situated in the gastric corpus. The dipoles propagate in the direction of the pylorus at a frequency of three cycles per minute. The advantages of employing ellipsoids in the analytical formulation of this gastric model are discussed in addition to the realism and usefulness of the approach.
Irimia
Andrei
A
Living State Physics Laboratories, Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235-1807, USA.
Bradshaw
L Alan
LA
D003198:Computer Simulation; D004594:Electrophysiology; D006801:Humans; D008953:Models, Anatomic; D008954:Models, Biological; D015233:Models, Statistical; D011708:Pylorus / Q000502:physiology; D013270:Stomach / Q000502:physiology*