Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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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
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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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