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Spectral analysis of heart valve sound for detection of prosthetic heart valve diseases

Authors
 Sang Hyun Kim  ;  Hee Jong Lee  ;  Jae Man Huh  ;  Byung Chul Chang 
Citation
 YONSEI MEDICAL JOURNAL, Vol.39(4) : 302-308, 1998 
Journal Title
 YONSEI MEDICAL JOURNAL 
ISSN
 0513-5796 
Issue Date
1998
MeSH
Female ; Heart Sounds* ; Heart Valve Diseases/diagnosis* ; Heart Valve Prosthesis Implantation* ; Humans ; Male ; Signal Processing, Computer-Assisted*
Abstract
The spectral analysis of heart valve sound is a noninvasive diagnostic method known to be useful in evaluating the state of the heart valve function. This may provide early detection of valve calcification, thrombus or destruction, since previous studies have shown that the dominant frequency peak moved to a high frequency area when natural heart valve leaflets were calcified, stiffened or destroyed. However, it is important for a heart valve sound diagnostic system to find a proper spectral analysis method on phonocardiography. Until now, conventional frequency analyses such as the Fourier transform or autoregressive spectral estimation technique have been used to estimate spectral components of a phonocardiogram, but they are inappropriate because the signal frequency is assumed to remain constant during the transform interval. To overcome this problem, in this study, FOS (Fast Orthogonal Search)
Files in This Item:
T199803073.pdf Download
DOI
10.3349/ymj.1998.39.4.302
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Thoracic and Cardiovascular Surgery (흉부외과학교실) > 1. Journal Papers
Yonsei Authors
Chang, Byung Chul(장병철)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/177049
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