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1: Int J Biomed Comput. 1987 May;20(4):275-82.Links

Chronotopocardiography: a new method for presentation of orthogonal electrocardiograms and vectorcardiograms.

Titomir LI, Ruttkay-Nedecký I.

Institute of Problems of Information Transmission, Academy of Sciences of the USSR.

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.

PMID: 3654019 [PubMed - indexed for MEDLINE]