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Figure 2 Multifocal right AT. Upper panel, Multiple bipolar BC electrograms. Three different firing foci are marked by arrows. The first beat originated in the low lateral region of the RA (electrodes A7–8). The second and third beats originated in close vicinity to each other in the high posterior wall (electrodes D2–3 and D1–2). Lower panel, Animated maps of the beats shown in the upper panel. Despite the fact that beats 2 and 3 originated in close vicinity, the activation patterns of the RA were clearly different. Map A corresponds to beat 1; map B to beat 2; and map C to beat 3.
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