Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)
- Volume 1998 Issue 11
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- Pages.195-196
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- 1998
ESTIMATION OF RHYTHMIC VARIATIONS IN R-R INTERVAL DURING SLEEP
- Han, J.M. (Interdisplinary Program, Medical and Biological Engineering Major) ;
- Lee, J.M. (Interdisplinary Program, Medical and Biological Engineering Major) ;
- Nam, Y.H. (Interdisplinary Program, Medical and Biological Engineering Major) ;
- Park, H.J. (Interdisplinary Program, Medical and Biological Engineering Major) ;
- Park, K.S. (Dept. of Biomedical Engineering, College of Medicine) ;
- Jeong, Do-Un (Dept. of Psychiatric Science, College of Medicine, Seoul National University)
- Published : 1998.11.20
Abstract
Nonlinear energy operator(NEO) is usually used to estimate energy content of linear oscillator. We applied the modified nonlinear energy operator (MNEO) to detect R-peak of ECG and analyzed variation of R-R interval during sleep with nonlinear methods, piecewise correlation dimension and approximate entropy (ApEn) which estimate complexity of time series. ApEn applied to R-R interval reveals trends as sleep state changes.
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