Patent ID: 6597955
Filing Date: 2003-07-22
Classification: A61B,A61N

Abstract:
A system for examining tissue within a heart, comprising:an invasive device for locating a plurality of electrodes within the heart for contact with heart tissue; a generator operable in one mode for transmitting electrical current in a first path through heart tissue in a region located between a first pair of electrodes, at least one of which is carried by the invasive device within the heart, the generator being operable in another mode for transmitting electrical current in a second path through heart tissue in a region located between a second pair of electrodes, at least one of which is carried by the invasive device within the heart; and a processor configured for deriving E-Characteristics of the heart tissue based, at least in part, upon measured voltages of the respective heart tissue regions in the first and second paths, and further for deriving iso-E-Characteristics.