Figure 1. A representative case
(A) Ablation points for ipsilateral encircling PV isolation on a
three-dimensionally-constructed computed tomography image. Each point
has a 4-mm diameter. Operators attempted to deliver radiofrequency
application at 4 mm from adjacent points. (B) Propagation map depicting
the conduction gap and LI drop at each point (white numbers in red
tags). Ablation points with a gap (yellow arrows) had a small LI drop
(<15 ohm).