Key result
Modified moving average analysis of T-wave alternans correlated strongly with input values (r2 = 0.9999) and tracked vulnerability to ventricular fibrillation with 100% sensitivity and specificity.
Population
Simulated electrocardiograms and experimental laboratory ECGs with dynamically changing alternans values
Comparison
Modified moving average analysis of T-wave… vs Input alternans values
Design
Preclinical
Authors
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May facilitate TWA-based VF risk assessment in noisy ECGs; leaves open human validation before clinical use.
Effect estimate: r(2) = 0.9999
The modified moving average method accurately measures T-wave alternans in the presence of artifacts and noise, providing a robust estimate of risk for ventricular fibrillation.
Nearing et al. (2002) studied Ventricular fibrillation. Modified moving average analysis of T-wave alternans vs. Input alternans values was evaluated on Correlation with input alternans values and prediction of ventricular fibrillation (r(2) = 0.9999). Modified moving average analysis of T-wave alternans correlated strongly with input values (r2 = 0.9999) and tracked vulnerability to ventricular fibrillation with 100% sensitivity and specificity.
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