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. 2019 Oct 16;1(3):401–402. doi: 10.1016/j.jaccas.2019.07.027

Figure 1.

Figure 1

Endocardial Voltage Map

(Top left) Endocardial voltage map with signals recorded on the posterior wall of the LA (bottom left) showing organized and slower electrical activation when compared with simultaneous continuous highly fractionated signals (bottom right) recorded from a similar location on the epicardial surface (top right). Voltage settings at 0.5 mV. LA = left atrium; LIPV = left inferior pulmonary vein; LSPV = left superior pulmonary vein; RSPV = right superior pulmonary vein; RIPV = right inferior pulmonary vein.