Key result
Magnetocardiography (MCG) localized a pacing catheter with an average error of 7+/-3 mm, compared to 25+/-4 mm for body surface potential mapping (BSPM).
Why the study?
Does multichannel magnetocardiographic (MCG) localization improve the accuracy of localizing source currents compared to body surface potential mapping (BSPM) in patients undergoing catheter pacing?
Population
10 patients undergoing catheter pacing
Comparison
Multichannel magnetocardiographic localization vs Body surface potential mapping (BSPM) localization
Design
Cross-sectional
Authors
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MCG may enhance non-invasive localization in paced patients; leaves open prospective validation before clinical adoption in mapping.
Observational (n=10)
Does multichannel magnetocardiographic (MCG) localization improve the accuracy of localizing source currents compared to body surface potential mapping (BSPM) in patients undergoing catheter pacing?
Absolute Event Rate: 7% vs 25%
Multichannel MCG provides superior localization accuracy of dipolar sources compared to BSPM, which is sufficient for clinical purposes even without individual torso models.
Pesola et al. (1999) reported an observational. Magnetocardiography (MCG) vs. Body surface potential mapping (BSPM) was evaluated on Average localization error using individual models with lungs included (mm). Magnetocardiography (MCG) localized a pacing catheter with an average error of 7+/-3 mm, compared to 25+/-4 mm for body surface potential mapping (BSPM).
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