Supplementary Figure 1. Representative cases showing the extension of voltage reduction with and without low-voltage areas
Left atrial voltage maps using various voltage thresholds with and without localized low-voltage areas are shown. Low-voltage areas indicated localized areas with bipolar voltage < 0.50 mV. A patient without low-voltage areas (Upper) demonstrated no or smaller areas with reduced voltage even using a relatively high voltage threshold (< 1.0mV, and < 1.5mV) than a patient with localized low-voltage areas (lower).