ABSTRACT
Cardiac mapping was reported as early as 1915, and implies the registration of the electrical activation sequence of the heart by recording of extracellular electrograms [1]. While initially used to study the normal electrical excitation of the heart, the major interest in cardiac mapping soon shifted to analysis of the mechanisms underlying various cardiac arrhythmias, and more recently, to the guidance of curative surgical and catheter ablation procedures [2-4].
