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Clinical average vector fields did not demonstrate activation flow from the PV antra into the atrial body for PVI non-responder cases pre-ablation. Visualisation details are as in Figure 6. Cases are arranged in order of increasing PV activation flow metric: (A) 0, (B) 1.9, (C) 2.9, (D) 4.5, (E) 6.7, and (F) 27.9%. For case (D), multiple splines of the LA basket were not in contact and so these were excluded from the analysis.
