DETERMINATION OF REFERENCE ANNOTATION TIME FROM MULTI-CHANNEL ELECTRO-CARDIOGRAM SIGNALS

摘要

A method includes receiving a plurality of mapping electro-cardiogram (ECG) signals from respective mapping electrodes coupled to a surface of a heart of a patient. Multiple reference ECG signals are received from respective reference electrodes coupled to the patient. The multiple reference ECG signals are jointly processed, so as to produce a single timing reference indicative of cardiac cycle timing of the heart. The single timing reference is applied to the mapping ECG signals. FIG. 1 24 26 40? 48 ERC ODULE 38282 24 2 46I 46 REFERENCE ECG 4639 NAVIGATION r MODULE I'J ECG SIGNAL I ---------- I