Detection of the valvular split within the second heart sound using the reassigned smoothed pseudo Wigner-Ville distribution.
Identifieur interne : 000627 ( PubMed/Checkpoint ); précédent : 000626; suivant : 000628Detection of the valvular split within the second heart sound using the reassigned smoothed pseudo Wigner-Ville distribution.
Auteurs : Abdelghani Djebbari [Algérie] ; Fethi Bereksi-ReguigSource :
- Biomedical engineering online [ 1475-925X ] ; 2013.
Descripteurs français
- KwdFr :
- MESH :
- diagnostic : Valvulopathies.
- méthodes : Tests de la fonction cardiaque.
- physiopathologie : Valvulopathies.
- Algorithmes, Bruits du coeur, Humains, Traitement du signal assisté par ordinateur.
English descriptors
- KwdEn :
- MESH :
- diagnosis : Heart Valve Diseases.
- methods : Heart Function Tests.
- physiopathology : Heart Valve Diseases.
- Algorithms, Heart Sounds, Humans, Signal Processing, Computer-Assisted.
Abstract
BACKGROUND
In this paper, we developed a novel algorithm to detect the valvular split between the aortic and pulmonary components in the second heart sound which is a valuable medical information.
METHODS
The algorithm is based on the Reassigned smoothed pseudo Wigner-Ville distribution which is a modified time-frequency distribution of the Wigner-Ville distribution. A preprocessing amplitude recovery procedure is carried out on the analysed heart sound to improve the readability of the time-frequency representation. The simulated S2 heart sounds were generated by an overlapping frequency modulated chirp-based model at different valvular split durations.
RESULTS
Simulated and real heart sounds are processed to highlight the performance of the proposed approach. The algorithm is also validated on real heart sounds of the LGB-IRCM (Laboratoire de Génie biomédical-Institut de recherches cliniques de Montréal) cardiac valve database. The A2-P2 valvular split is accurately detected by processing the obtained RSPWVD representations for both simulated and real data.
DOI: 10.1186/1475-925X-12-37
PubMed: 23631738
PubMed Central: PMC3706289
Affiliations:
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pubmed:23631738Le document en format XML
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A preprocessing amplitude recovery procedure is carried out on the analysed heart sound to improve the readability of the time-frequency representation. The simulated S2 heart sounds were generated by an overlapping frequency modulated chirp-based model at different valvular split durations.</p></div><div type="abstract" xml:lang="en"><p><b>RESULTS</b></p><p>Simulated and real heart sounds are processed to highlight the performance of the proposed approach. The algorithm is also validated on real heart sounds of the LGB-IRCM (Laboratoire de Génie biomédical-Institut de recherches cliniques de Montréal) cardiac valve database. The A2-P2 valvular split is accurately detected by processing the obtained RSPWVD representations for both simulated and real data.</p></div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">23631738</PMID><DateCompleted><Year>2013</Year><Month>12</Month><Day>11</Day></DateCompleted><DateRevised><Year>2018</Year><Month>11</Month><Day>13</Day></DateRevised><Article PubModel="Electronic"><Journal><ISSN IssnType="Electronic">1475-925X</ISSN><JournalIssue CitedMedium="Internet"><Volume>12</Volume><PubDate><Year>2013</Year><Month>Apr</Month><Day>30</Day></PubDate></JournalIssue><Title>Biomedical engineering online</Title><ISOAbbreviation>Biomed Eng Online</ISOAbbreviation></Journal><ArticleTitle>Detection of the valvular split within the second heart sound using the reassigned smoothed pseudo Wigner-Ville distribution.</ArticleTitle><Pagination><MedlinePgn>37</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1186/1475-925X-12-37</ELocationID><Abstract><AbstractText Label="BACKGROUND" NlmCategory="BACKGROUND">In this paper, we developed a novel algorithm to detect the valvular split between the aortic and pulmonary components in the second heart sound which is a valuable medical information.</AbstractText><AbstractText Label="METHODS" NlmCategory="METHODS">The algorithm is based on the Reassigned smoothed pseudo Wigner-Ville distribution which is a modified time-frequency distribution of the Wigner-Ville distribution. A preprocessing amplitude recovery procedure is carried out on the analysed heart sound to improve the readability of the time-frequency representation. The simulated S2 heart sounds were generated by an overlapping frequency modulated chirp-based model at different valvular split durations.</AbstractText><AbstractText Label="RESULTS" NlmCategory="RESULTS">Simulated and real heart sounds are processed to highlight the performance of the proposed approach. The algorithm is also validated on real heart sounds of the LGB-IRCM (Laboratoire de Génie biomédical-Institut de recherches cliniques de Montréal) cardiac valve database. The A2-P2 valvular split is accurately detected by processing the obtained RSPWVD representations for both simulated and real data.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Djebbari</LastName><ForeName>Abdelghani</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>University of Tlemcen, Faculty of technology, BP119, Tlemcen, Algeria. a.djebbari@umontreal.ca</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Bereksi-Reguig</LastName><ForeName>Fethi</ForeName><Initials>F</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2013</Year><Month>04</Month><Day>30</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Biomed Eng 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