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Analysis of coherence between sleep EEG and ECG signals during and after obstructive sleep apnea events
conference contribution
posted on 2008-12-01, 00:00 authored by A H Khandoker, Chandan KarmakarChandan Karmakar, M PalaniswamiThis study presents the first successful preliminary attempt to directly investigate the interactions of power spectra of sleep EEG and ECG signals of patients with obstructive sleep apnea syndrome (OSAS) by coherence analysis. ECG and EEG signals were collected from 8 OSAS patients and 3 healthy subjects. Coherence between two signals over different frequency bands(0-128 Hz) were calculated for normal breathing events, obstructive sleep apnea (OSA) events and events following OSA terminations (with/without arousals) in non-REM as well as REM sleep. Overall coherence of ECG and EEG in REM sleep is higher than that in non-REM sleep. A significant (p=0.0164) difference of coherence in the range of 10-15 Hz was found among normal, OSA and termination events in REM sleep. The results could be useful in detecting OSA events or OSA related arousals to characterize sleep fragmentation from ECG and EEG signals. © 2008 IEEE.
History
Event
30th Annual International Conference of the IEEE Engineering in Medicine and Biology SocietyPagination
3876 - 3879Publisher
IEEELocation
Vancouver, BC, CanadaPlace of publication
Piscataway, N.J.Start date
2008-08-20End date
2008-08-25ISBN-13
9781424418152Title of proceedings
Proceedings of the 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'08 - "Personalized Healthcare through Technology"Usage metrics
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