REGION-OF-INTEREST FOCAL SOURCE DETECTION USING COMPARISONS BETWEEN R-S WAVE MAGNITUDES AND LATS OF RS COMPLEXES

摘要

PROBLEM TO BE SOLVED: To provide a system and method of identifying focal sources.;SOLUTION: The method can include: detecting, via sensors, electrocardiogram (ECG) signals over time, where each ECG signal detected via one of the sensors has a location in a heart and indicates electrical activity of the heart, and each signal comprises at least an R wave and an S wave; creating an R-S map comprising an R-to-S ratio for each of the ECG signals, the R-to-S ratio comprising a ratio of the absolute magnitude of the R wave to the absolute magnitude of the S wave; identifying, for each of the ECG signals, a local activation time (LAT); and correlating the R-to-S ratios for the ECG signals on the R-S map and the identified LATs, and using the correlation to identify the focal sources.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2017,JPO&INPIT