Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)
- Volume 1997 Issue 05
- /
- Pages.402-405
- /
- 1997
Comparison of Spectral Analysis Methods of Prosthetic Heart Valve Sound
인공판막의 판막음 스펙트럼 분석방법 비교
- Lee, H.J. (Dept. of Biomedical Eng., Yonsei Univ.) ;
- Kim, S.H. (Cardiovascular Research Institute, Yonsei Univ.) ;
- Chang, B.C. (Dept. of Thorac. & Cardiovas. Surg., Yonsei Univ.) ;
-
Tack, G.
(Dept. of Biomedical Eng., Konkuk Univ.)
;
- Cho, B.K. (Dept. of Thorac. & Cardiovas. Surg., Yonsei Univ.) ;
- Yoo, S.K. (Dept. of Biomedical Eng., Yonsei Univ.)
- 이희종 (연세대 의과대 의용공학교실) ;
- 김상현 (연세대 심혈관연구소) ;
- 장병철 (연세대 흉부외과) ;
-
탁계래
(건국대 의학공학과)
;
- 조범구 (연세대 흉부외과) ;
- 유선국 (연세대 의과대 의용공학교실)
- Published : 1997.05.23
Abstract
The analysis of heart sounds is a noninvasive diagnostic method useful to diagnose heart valve function. In this paper we compared the ability of spectral analysis method for prosthetic heart valve sounds. Phonocardiograms of prosthetic heart valve were analyzed in order to derive frequency domain feature suitable for the classification of the valve state. The FFT-based methods did not provide sufficient frequency resolution to completely characterize the spectrum of prosthetic heart valve sounds. A high resolution parametric methods were shown to give superior frequency resolution. In parametric methods, all methods provide a 1st & 2nd & 3rd frequency component. But Shank method provided a most dominant frequency peak.
Keywords