Document Detail


Third heart sound detection using wavelet transform-simplicity filter.
MedLine Citation:
PMID:  18002196     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Heart failure and heart valvar diseases are chronic heart disorders which are potentially diagnosed using heart sound characteristics. Heart sound components S1 and S2 exhibit significant characteristics for valvar dysfunction while pathological S3 sound is a prominent sign for heart failure in elderly people. In this paper, a new automatic detection method of the S3 heart sound is proposed. The method is build upon wavelet transform-simplicity filter which separates S1, S2 and S3 sounds from background noise enabling heart sound segmentation even in the presence of heart murmurs or noise sources. The algorithm uses physiologically inspired criteria to assess the presence of S3 heart sound components and to perform their segmentation. Heart sound samples recorded from children as well as from elderly patients with heart failure were used to test the method. The achieved sensitivity and specificity were 90.35% and 92.35%, respectively.
Authors:
D Kumar; P Carvalho; M Antunes; J Henriques; A Sá e Melo; R Schmidt; J Habetha
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Publication Detail:
Type:  Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference     Volume:  2007     ISSN:  1557-170X     ISO Abbreviation:  Conf Proc IEEE Eng Med Biol Soc     Publication Date:  2007  
Date Detail:
Created Date:  2007-11-16     Completed Date:  2008-03-14     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101243413     Medline TA:  Conf Proc IEEE Eng Med Biol Soc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1277-81     Citation Subset:  IM    
Affiliation:
Centre for Informatics and Systems, University of Coimbra, Portugal. dinesh@dei.uc.pt
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MeSH Terms
Descriptor/Qualifier:
Algorithms*
Child
Diagnosis, Computer-Assisted / methods*
Heart Auscultation / methods*
Heart Failure / diagnosis*
Heart Sounds*
Humans
Reproducibility of Results
Sensitivity and Specificity
Signal Processing, Computer-Assisted*
Sound Spectrography / methods*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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