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. Author manuscript; available in PMC: 2018 Jan 24.
Published in final edited form as: J Am Coll Cardiol. 2017 Jan 24;69(3):303–321. doi: 10.1016/j.jacc.2016.10.065

Figure 1. Spatio-temporal Dispersion of Multipolar Electrograms.

Figure 1

Panel A: Dispersion areas: definition, mapping approach and delineation.

Panel B, Left: Examples of single-bipole signals from dispersion regions. Upper: Continuously fractionated and low-voltage signals. Upper Middle: “Trains of Fractionation” are periodic fractionated electrograms. Lower Middle: “Rapid Fires” are short-cycle-length non-fractionated electrograms. Lower: Non-fractionated (>120 ms) electrograms may be one or several of the electrograms within a dispersion region (Panel B, right). Collectively, the bipolar electrograms span most of the AFCL recorded in the region.