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Minimal configuration of body surface potential mapping for discrimination of left versus right dominant frequencies during atrial fibrillation
Author(s) -
Rodrigo M.,
Climent A.M.,
Liberos A.,
FernándezAviles F.,
Atienza F.,
Guillem M.S.,
Berenfeld O.
Publication year - 2017
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/pace.13133
Subject(s) - medicine , ablation , intracardiac injection , atrial fibrillation , body surface , cardiology , correlation , standard deviation , body surface area , limits of agreement , correlation coefficient , nuclear medicine , biomedical engineering , statistics , mathematics , geometry
Background Ablation of drivers maintaining atrial fibrillation (AF) has been demonstrated as an effective therapy. Drivers in the form of rapidly activated atrial regions can be noninvasively localized to either left or right atria (LA, RA) with body surface potential mapping (BSPM) systems. This study quantifies the accuracy of dominant frequency (DF) measurements from reduced‐leads BSPM systems and assesses the minimal configuration required for ablation guidance. Methods Nine uniformly distributed lead sets of eight to 66 electrodes were evaluated. BSPM signals were registered simultaneously with intracardiac electrocardiograms (EGMs) in 16 AF patients. DF activity was analyzed on the surface potentials for the nine leads configurations, and the noninvasive measures were compared with the EGM recordings. Results Surface DF measurements presented similar values than panoramic invasive EGM recordings, showing the highest DF regions in corresponding locations. The noninvasive DFs measures had a high correlation with the invasive discrete recordings; they presented a deviation of <0.5 Hz for the highest DF and a correlation coefficient of >0.8 for leads configurations with 12 or more electrodes. Conclusions Reduced‐leads BSPM systems enable noninvasive discrimination between LA versus RA DFs with similar results as higher‐resolution 66‐leads system. Our findings demonstrate the possible incorporation of simplified BSPM systems into clinical planning procedures for AF ablation.