A method and system for cardiac mapping comprises acquiring patients cardiac signals into a computer based system. The computer based system may be a cardiac mapping system, cardiac recording/monitoring system, or any other computer based system. The method and system comprises algorithms/programs capable of analyzing the intracardiac signals for determining at least one of locating the “zone of slow conduction”, checking post-pacing interval (PPI), or checking line of block. This disclosure is useful in cardiac ablation procedures for treating cardiac arrhythmias especially atial flutters and isthmus dependent atrial flutters. The above computer based algorithms can also be activated by voice activation.
