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. Author manuscript; available in PMC: 2011 Apr 1.
Published in final edited form as: Heart Rhythm. 2009 Dec 11;7(4):534–537. doi: 10.1016/j.hrthm.2009.12.005

Figure 4.

Figure 4

Top row. Panels A–C : ECGI activation map in patient #2 in resting sinus rhythm (A-RAO view, B-LAO view, C-LPO view). Activation initiated from the superior anterior septal aspect (orange, panel B) and propagated smoothly throughout the ventricular epicardium with posterolateral RV and LV base activating late (blue, panel C). Bottom row. Panels D–F : ECGI activation-recovery interval (ARI) maps with areas of early repolarization (short ARI <200 ms, regions 1 and 3 in deep blue, panels D and F respectively). Abnormally large localized ARI gradients (261 ms/cm) are observed across these areas of early repolarization. Inset 1 shows the electrogram from region 1, showing marked elevation of the QRS-ST segment (baseline indicated by the black line). Inset 2 shows the electrogram from neighboring region 2 which has a relatively flat ST segment.

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