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