Etalon (standard) for surface potential distribution produced by electric activity of the heart.
The authors submit etalon (standard) equipotential maps as an aid in the evaluation of maps of surface potential distributions in living subjects. They were obtained by measuring potentials on the surface of an electrolytic tank shaped like the thorax. The individual etalon maps were determined in such a way that the parameters of the physical dipole forming the source of the electric field in the tank corresponded to the mean vectorcardiographic parameters measured in a healthy population sample. The technique also allows a quantitative estimate of the degree of non-dipolarity of the heart as the source of the electric field.
D004594:Electrophysiology; D006321:Heart / Q000502:physiology*; D006801:Humans; D008722:Methods; D011199:Potentiometry; D013499:Surface Properties