A note on the application of Morse theory to the study of the potential extrema of body surface potential maps.
The entire body may be approximated with a closed surface having the homotopy type of a sphere. The Morse inequalities then yield certain relationships between the local potential extrema and the saddle points appearing on body surface potential maps (BSPMs). In particular, a list of possible extremal configurations is presented.
D004562:Electrocardiography / Q000379:methods; D006321:Heart / Q000502:physiology*; D008954:Models, Biological; D011199:Potentiometry