Detection of the valvular split within the second heart sound using the reassigned smoothed pseudo Wigner–Ville distribution
Identifieur interne : 000195 ( Main/Exploration ); précédent : 000194; suivant : 000196Detection of the valvular split within the second heart sound using the reassigned smoothed pseudo Wigner–Ville distribution
Auteurs : Abdelghani Djebbari [Algérie] ; Fethi Bereksi-Reguig [Algérie]Source :
- 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
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.
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.
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.
Url:
DOI: 10.1186/1475-925X-12-37
PubMed: 23631738
PubMed Central: 3706289
Affiliations:
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Le document en format XML
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Tlemcen, Algeria</nlm:aff><country xml:lang="fr">Algérie</country><wicri:regionArea>University of Tlemcen, Faculty of technology, BP119, Tlemcen</wicri:regionArea></affiliation></author><author><name sortKey="Bereksi Reguig, Fethi" sort="Bereksi Reguig, Fethi" uniqKey="Bereksi Reguig F" first="Fethi" last="Bereksi-Reguig">Fethi Bereksi-Reguig</name><affiliation wicri:level="1"><nlm:aff id="I1">University of Tlemcen, Faculty of technology, BP119, Tlemcen, Algeria</nlm:aff><country xml:lang="fr">Algérie</country><wicri:regionArea>University of Tlemcen, Faculty of technology, BP119, Tlemcen</wicri:regionArea></affiliation></author></analytic><series><title level="j">BioMedical Engineering OnLine</title><idno type="eISSN">1475-925X</idno><imprint><date when="2013">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Algorithms (MeSH)</term><term>Heart Function Tests (methods)</term><term>Heart Sounds (MeSH)</term><term>Heart Valve Diseases (diagnosis)</term><term>Heart Valve Diseases (physiopathology)</term><term>Humans (MeSH)</term><term>Signal Processing, Computer-Assisted (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Algorithmes (MeSH)</term><term>Bruits du coeur (MeSH)</term><term>Humains (MeSH)</term><term>Tests de la fonction cardiaque (méthodes)</term><term>Traitement du signal assisté par ordinateur (MeSH)</term><term>Valvulopathies (diagnostic)</term><term>Valvulopathies (physiopathologie)</term></keywords><keywords scheme="MESH" qualifier="diagnosis" xml:lang="en"><term>Heart Valve Diseases</term></keywords><keywords scheme="MESH" qualifier="diagnostic" xml:lang="fr"><term>Valvulopathies</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Heart Function Tests</term></keywords><keywords scheme="MESH" qualifier="méthodes" xml:lang="fr"><term>Tests de la fonction cardiaque</term></keywords><keywords scheme="MESH" qualifier="physiopathologie" xml:lang="fr"><term>Valvulopathies</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Heart Valve Diseases</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Algorithms</term><term>Heart Sounds</term><term>Humans</term><term>Signal Processing, Computer-Assisted</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Algorithmes</term><term>Bruits du coeur</term><term>Humains</term><term>Traitement du signal assisté par ordinateur</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Background</title><p>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.</p></sec><sec><title>Methods</title><p>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.</p></sec><sec><title>Results</title><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></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Durand, L" uniqKey="Durand L">L Durand</name></author><author><name sortKey="Pibarot, P" uniqKey="Pibarot P">P Pibarot</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Xu, J" uniqKey="Xu J">J Xu</name></author><author><name sortKey="Durand, L" uniqKey="Durand L">L Durand</name></author><author><name sortKey="Pibarot, P" uniqKey="Pibarot P">P Pibarot</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Fisher, M" uniqKey="Fisher M">M Fisher</name></author><author><name sortKey="Forfia, P" uniqKey="Forfia P">P Forfia</name></author><author><name sortKey="Chamera, E" uniqKey="Chamera E">E Chamera</name></author><author><name sortKey="Housten Harris, T" uniqKey="Housten Harris T">T 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L">L Cohen</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kodera, K" uniqKey="Kodera K">K Kodera</name></author><author><name sortKey="Gendrin, R" uniqKey="Gendrin R">R Gendrin</name></author><author><name sortKey="Villedary, C" uniqKey="Villedary C">C Villedary</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kodera, K" uniqKey="Kodera K">K Kodera</name></author><author><name sortKey="De Villedary, C" uniqKey="De Villedary C">C De Villedary</name></author><author><name sortKey="Gendrin, R" uniqKey="Gendrin R">R Gendrin</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Gabor, D" uniqKey="Gabor D">D Gabor</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Chassande Mottin, E" uniqKey="Chassande Mottin E">E Chassande-Mottin</name></author><author><name sortKey="Flandrin, P" uniqKey="Flandrin P">P Flandrin</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Illanes Manriquez, A" uniqKey="Illanes Manriquez A">A Illanes-Manriquez</name></author><author><name sortKey="Zhang, Q" uniqKey="Zhang Q">Q Zhang</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Boashash, B" uniqKey="Boashash B">B Boashash</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Boashash, B" uniqKey="Boashash B">B Boashash</name></author><author><name sortKey="Escudie, B" uniqKey="Escudie B">B Escudie</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Imberger, J" uniqKey="Imberger J">J Imberger</name></author><author><name sortKey="Boashash, B" uniqKey="Boashash B">B Boashash</name></author></analytic></biblStruct></listBibl></div1></back></TEI><affiliations><list><country><li>Algérie</li></country></list><tree><country name="Algérie"><noRegion><name sortKey="Djebbari, Abdelghani" sort="Djebbari, Abdelghani" uniqKey="Djebbari A" first="Abdelghani" last="Djebbari">Abdelghani Djebbari</name></noRegion><name sortKey="Bereksi Reguig, Fethi" sort="Bereksi Reguig, Fethi" uniqKey="Bereksi Reguig F" first="Fethi" last="Bereksi-Reguig">Fethi Bereksi-Reguig</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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