TY - GEN
T1 - Adaptive time-frequency interbeat
AU - Lucena, Fausto
AU - Takeuchi, Yoshinori
AU - Ohnishi, Noboru
AU - Barros, Allan Kardec
AU - Fujiwara, Yoshihiro
PY - 2008
Y1 - 2008
N2 - In this paper, we address the nonstationary problem to analyze the cardiovascular control system based on beat-to-beat heart rate variability (HRV) time series. A novelty information here is to perform HRV time-frequency analysis without "a priori" knowledge of nonstationarity. This is achieved by adaptive interactions that will decompose the HRV signal in sub-signals with well-defined time-frequency parameters. These may be used to reconstruct the signal in sub-bands or might be used in screening tests. To validate our method, we carried out the experiments with both artificial and real HRV intervals. As an application test, we consider a simple case of screening, where experiments with a database consisting of beat-to-beat samples derived from 20 normal and 15 cardiac heart failures (CHF) yielded an overall classification accuracy of 98.33 %.
AB - In this paper, we address the nonstationary problem to analyze the cardiovascular control system based on beat-to-beat heart rate variability (HRV) time series. A novelty information here is to perform HRV time-frequency analysis without "a priori" knowledge of nonstationarity. This is achieved by adaptive interactions that will decompose the HRV signal in sub-signals with well-defined time-frequency parameters. These may be used to reconstruct the signal in sub-bands or might be used in screening tests. To validate our method, we carried out the experiments with both artificial and real HRV intervals. As an application test, we consider a simple case of screening, where experiments with a database consisting of beat-to-beat samples derived from 20 normal and 15 cardiac heart failures (CHF) yielded an overall classification accuracy of 98.33 %.
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U2 - 10.1109/ICBBE.2008.843
DO - 10.1109/ICBBE.2008.843
M3 - Conference contribution
AN - SCOPUS:50949113427
SN - 9781424417483
T3 - 2nd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2008
SP - 2056
EP - 2059
BT - 2nd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2008
PB - IEEE Computer Society
T2 - 2nd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2008
Y2 - 16 May 2008 through 18 May 2008
ER -