Unipolar Morphology Analysis in Bipolar CFAE S wave predominance Non S wave predominance l 12 consecutive AF (Paroxysmal 8) received Ensite Array mapping, 87 sites analyzed (26 CFAE, 61 non-CFAE) l S wave predominance (>50%) in CFAE sites (24 of 26 bipolar CFAE sites) l Non S wave predominance ( 50%) in non-CFAE sites (56 of 61 bipolar non-CFAE sites).