منابع مشابه
Computerized heart sounds analysis
This paper is concerned with a synthesis study of the fast Fourier transform (FFT), the short-time Fourier transform (STFT), the Wigner distribution (WD) and the wavelet transform (WT) in analysing the phonocardiogram signal (PCG). It is shown that these transforms provide enough features of the PCG signals that will help clinics to obtain qualitative and quantitative measurements of the time-f...
متن کاملCluster analysis and classification of heart sounds
Acoustic heart signals, generated by the mechanical processes of the cardiac cycle, carry significant information about the underlying functioning of the cardiovascular system.We describe a computational analysis framework for identifying distinct morphologies of heart sounds and classifying them into physiological states. The analysis framework is based on hierarchical clustering, compact data...
متن کاملTime Frequency Analysis of Canine Heart Sounds
Six different time frequency distributions (TFDs) have been used to analyze the fust and second heart sounds. These TFDs have been applied to both simulated heart sound data and to experimeutal phonocardiogram data (N = 6) recorded in the anesthetized dog. Using the distributions, no significant systematic rising frequency component was observed in either the frst or second heart sounds. As rev...
متن کاملA Hybrid Model of Heart Anomalies Detection by Processing Heart Sounds
Introduction: Different factors are effective in detecting heart abnormalities. The greater the number of these factors, the greater the uncertainty in the detection of heart abnormalities. In the uncertainty condition in response of prediction model, the fuzzy systems are one of the most effective methods for generating an acceptable response. Method: In this applied study, 3240 records rela...
متن کاملA Hybrid Model of Heart Anomalies Detection by Processing Heart Sounds
Introduction: Different factors are effective in detecting heart abnormalities. The greater the number of these factors, the greater the uncertainty in the detection of heart abnormalities. In the uncertainty condition in response of prediction model, the fuzzy systems are one of the most effective methods for generating an acceptable response. Method: In this applied study, 3240 records rela...
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ژورنال
عنوان ژورنال: Computers in Biology and Medicine
سال: 2008
ISSN: 0010-4825
DOI: 10.1016/j.compbiomed.2007.09.006