Drs. Ershler, Lux, and Taccardi demonstrate electrical recordings from the body surface can reliably detect three-dimensional electrical activation of the ventricles.
Oster HS, Taccardi B, Lux RL, Ershler PR, Rudy Y. Noninvasive Electrocardiographic Imaging: Reconstruction of Epicardial Potentials, Electrograms, and Isochrones and Localization of Single and Multiple Electrocardiac Events. Circulation, 96 (3), 1012-1024, 1997