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. Author manuscript; available in PMC: 2018 Apr 1.
Published in final edited form as: JACC Clin Electrophysiol. 2017 Apr;3(4):393–402. doi: 10.1016/j.jacep.2016.10.006

Figure 1. Technique for FIRM Guided Ablation.

Figure 1

Figure 1

A) Typical atrial basket placement is indicated in the fluoroscopic images. Sequential atrial basket recordings were taken with source elimination prior to PVI. B) Multiple basket positions used per FIRM-mapping epoch to minimize unmapped atrial regions. Positions 1–2 are in the right atrium, positions 3–4 are in the LA. SVC – superior vena cava, RSPV – right superior pulmonary vein, RIPV right inferior pulmonary vein, LSPV – left superior pulmonary vein, LIPV – left inferior pulmonary vein.