Key result
An automatic body surface mapping system showed a mean QRS correlation coefficient of 0.962 at a 5 mm pacing distance, which significantly decreased at larger distances.
Why the study?
Does an automatic analytical body surface mapping system quantitatively evaluate the similarity of QRS waveforms and distance between pacing sites in catheter pace-mapping?
Does an automatic analytical body surface mapping system quantitatively evaluate the similarity of QRS waveforms and distance between pacing sites in catheter pace-mapping?
An 87-lead body surface mapping system calculating the mean correlation coefficient of QRS waveforms can quantitatively and rapidly estimate the distance between pacing sites, improving the spatial resolution of catheter pace-mapping for ventricular tachycardia ablation.
May aid pace-mapping precision in VT ablation; leaves open outcome benefits in prospective trials.
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Yamaguchi et al. (1998) studied Ventricular tachycardia. Automatic analytical body surface mapping system vs. Different pacing distances (10mm, 15mm, 20mm) was evaluated on Mean correlation coefficient (mean r) of QRS waves. An automatic body surface mapping system showed a mean QRS correlation coefficient of 0.962 at a 5 mm pacing distance, which significantly decreased at larger distances.
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