Figure 6
Assessment of bipolar electrograms
(A, B) Comparisons of the bipolar voltage and bipolar morphology between DFAs and non-DFAs. (C) Examples of 3-dimensional maps representing a spatial relationship of the fractionated electrograms and focal activations. (D) The white arrow indicates the fractionated region and its bipolar electrogram. The green square indicated by the yellow arrow is the point with focal activations located in the border of the fractionated regions; however, its local bipolar electrogram showed normal voltage and isoelectric baseline. This point is considered to be outside the fractionated area.
DFAs, dominant focal activations; ICL, Interval Confidence Level; Bi, bipolar electrograms; Uni: unipolar electrograms