title: Chronotopocardiography: a new method for presentation of orthogonal electrocardiograms and vectorcardiograms.
abstract: A mathematical model was developed to express and visualize signals from 3 orthogonal ECG (vectorcardiographic (VCG) leads as areas of activation on a spherical surface approximating to the walls of the cardiac ventricles, called the image surface. A computer program was compiled for presentation of orthogonal ECGs in the form of a series of instantaneous maps of cardiac activation, as well as chronotopocardiograms displaying the topography and the duration of activation on the image surface on two summary maps.
mesh_terms: D004562:Electrocardiography / Q000379:methods*; D006801:Humans; D008433:Mathematics; D008955:Models, Cardiovascular; D012984:Software; D014672:Vectorcardiography / Q000379:methods*