Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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A New algorithm for at interval analysis in 24 hour Holter BCG

24시간 HOLTER ECG에서 QT interval 분석을 위한 새로운 Algorithm에 관한 연구

  • Yoon, Hyung-Ro (Dept. of Med. Eng., College of Health Science, Yonsei Univ.) ;
  • Lee, Youn-Sun (Dept. of Med. Eng., College of Health Science, Yonsei Univ.) ;
  • Lee, Kyoung-Joung (Dept. of Med. Eng., College of Health Science, Yonsei Univ.) ;
  • Thakor, Nitish V. (Dept. of Biomed. Eng., School of Medicine, The Johns Hopkins Univ.)
  • 윤형로 (연세대학교 보건과학대학 의용공학과) ;
  • 이윤선 (연세대학교 보건과학대학 의용공학과) ;
  • 이경중 (연세대학교 보건과학대학 의용공학과) ;
  • Published : 1989.05.26
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Abstract

Prolongation in QT corrected interval (QTc), measured in surface ECG, has been shown in the majority af patients to be marker of bad prognosis in postmyocardial infarction patients (PMIP). Hence it would seem logical that dynamic QTc interval measurement can be a very usefull indicator to stratify prognosis in PMIP. We present a new algorithm for QT as well as for QTP (distance value from Q wave onset to T wave peak) intervals measurement in 24 hour ECG Holter tapes. Validation of the algorithm by hand measurement has been done on first beats of 18 Holter tapes, resulting in a magnitude of deviations between 10 and 15 ms. Application on 24 hour Holter ECG signal has also been done.

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