Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Real Time Estimation of the Left Ventricular Diastolic Relaxation Rate using Intraventricular Pressure Waveform

압력 파형을 이용한 좌심실 확장 이완율의 실시간 추정

  • Chun, H.G. (Interdisciplinary Program, Biomedical Engineering Major, Graduate School, Seoul National University) ;
  • Kim, H.C. (Departments of Biomedical Engineering, College of Medicine, Seoul National University) ;
  • Sohn, D.W. (Departments of Internal Medicine, College of Medicine, Seoul National University)
  • 천홍구 (서울대학교 대학원 협동과정 의용생체공학 ) ;
  • 김희찬 (서울대학교 의과대학 의공학교실) ;
  • 손대원 (서울대학교 의과대학 내과학교실)
  • Published : 1997.11.28
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Abstract

The left ventricular relaxation rate is used as a golden standard which describes the left ventricular diastolic unction. So far, to get the rate of relaxation one should calculate the data after full recording, that is, off-line method. Therefore one cannot get the rate of relaxation in real-time while changing loading condition or infusing drug. But real time monitoring of the relaxation rate is necessary while changing loading condition or infusing drug to control the mechanics of heart and to get more information. We propose a new criterion to get the left ventricular relaxation rate and a real time algorithm. By comparison, it was turned out that our criterion outperforms others criterion.

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