#$%^&*AU2007216634B220131121.pdf#####ABSTRACT A reliable endocardial map is obtained by constructing a matrix relationship between a small number of endocardial points and a large number of external receiving points using a multi-electrode chest panel. Inversion of the matrix yields information 5 allowing the endocardial map to be constructed. Subsequent maps are obtained noninvasively using the multi-electrode chest panel, applying new electrical signals to the matrix relationship, and again inverting the matrix to generate new endocardial electrical maps. 101/9 cn rCQ C 2 CQ CC) CD C 2 Itil C:I C 2 C 2 C 2 co C 2 co co LL. C 2 CO C 2 C 2