TY - GEN
T1 - Estimation of T-Wave Alternans from multi-lead ECG signals using a modified moving average method
AU - Nijm, G. M.
AU - Swiryn, S.
AU - Larson, A. C.
AU - Sahakian, A. V.
PY - 2008
Y1 - 2008
N2 - T-wave alternans (TWA) manifests on the surface ECG as a pattern of alternating amplitude T-waves, typically in the microvolt range. Consequently, TWA is usually invisible at standard ECG display scales and must be detected using signal processing methods. There is a predictive relationship between TWA and sudden cardiac death, so proper detection and estimation may contribute to clinical decision-making. The objective of the 2008 Physionet/Computers in Cardiology Challenge was to estimate the magnitude of TWA in a dataset of 100 multi-lead ECGs. We used a modified moving average method (MMA) to detect and estimate TWA. We found that the TWA magnitude ranged from to 1.3 to 256.9 μV (43.9 ± 49.7 μV). The Kendall rank correlation coefficient obtained for the challenge was 0.451. In conclusion, the MMA method can be used for detection and estimation of TWA, though additional work could further improve the method.
AB - T-wave alternans (TWA) manifests on the surface ECG as a pattern of alternating amplitude T-waves, typically in the microvolt range. Consequently, TWA is usually invisible at standard ECG display scales and must be detected using signal processing methods. There is a predictive relationship between TWA and sudden cardiac death, so proper detection and estimation may contribute to clinical decision-making. The objective of the 2008 Physionet/Computers in Cardiology Challenge was to estimate the magnitude of TWA in a dataset of 100 multi-lead ECGs. We used a modified moving average method (MMA) to detect and estimate TWA. We found that the TWA magnitude ranged from to 1.3 to 256.9 μV (43.9 ± 49.7 μV). The Kendall rank correlation coefficient obtained for the challenge was 0.451. In conclusion, the MMA method can be used for detection and estimation of TWA, though additional work could further improve the method.
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U2 - 10.1109/CIC.2008.4749092
DO - 10.1109/CIC.2008.4749092
M3 - Conference contribution
AN - SCOPUS:62249178624
SN - 1424437067
SN - 9781424437061
T3 - Computers in Cardiology
SP - 517
EP - 520
BT - Computers in Cardiology 2008, CAR
T2 - Computers in Cardiology 2008, CAR
Y2 - 14 September 2008 through 17 September 2008
ER -