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. Author manuscript; available in PMC: 2013 Dec 1.
Published in final edited form as: Circ Arrhythm Electrophysiol. 2012 Nov 13;5(6):1081–1090. doi: 10.1161/CIRCEP.112.970699

Figure 3.

Figure 3

The association of ablation sites and critical VT sites with scar transmurality. (A) Ablation sites were observed in regions with scar and normal myocardium adjacent to the scar. (B) Critical sites were identified only in scar region with >25% scar transmurality. (C) Significant associations among EGM parameters and EGM types with scar transmurality were observed (except EGM deflections) within critical sites. (D) S-QRS (R=0.768, P<0.0001) and %S-QRS/VT-CL (R=0.690, P<0.0001) were significantly associated with scar transmurality. Critical sites with ≥40 msec of S-QRS and ≥30% of %S-QRS/VT-CL were identified by >75% scar transmurality.