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dc.contributor.authorMartínez Cabeza De Vaca Alajarín, Juan de la Cruz 
dc.contributor.authorRuiz Merino, Ramón Jesús 
dc.date.accessioned2010-11-12T13:35:22Z
dc.date.available2010-11-12T13:35:22Z
dc.date.issued2005-06-29
dc.identifier.citationMARTÍNEZ ALAJARÍN, Juan, RUIZ MERINO, Ramón. Efficient method for events detection in phonocardiographic signals. En: Bioengineered and Bioinspired Systems II (2005: Sevilla). Proceedings of SPIE: Bioengineered and Bioinspired Systems II. 9-11 de Mayo, Sevilla. 2005. vol. 5839. 398-409 p. ISBN 9780819458346es
dc.identifier.isbn9780819458346
dc.description.abstractThe auscultation of the heart is still the first basic analysis tool used to evaluate the functional state of the heart, as well as the first indicator used to submit the patient to a cardiologist. In order to improve the diagnosis capabilities of auscultation, signal processing algorithms are currently being developed to assist the physician at primary care centers for adult and pediatric population. A basic task for the diagnosis from the phonocardiogram is to detect the events (main and additional sounds, murmurs and clicks) present in the cardiac cycle. This is usually made by applying a threshold and detecting the events that are bigger than the threshold. However, this method usually does not allow the detection of the main sounds when additional sounds and murmurs exist, or it may join several events into a unique one. In this paper we present a reliable method to detect the events present in the phonocardiogram, even in the presence of heart murmurs or additional sounds. The method detects relative maxima peaks in the amplitude envelope of the phonocardiogram, and computes a set of parameters associated with each event. Finally, a set of characteristics is extracted from each event to aid in the identification of the events. Besides, the morphology of the murmurs is also detected, which aids in the differentiation of different diseases that can occur in the same temporal localization. The algorithms have been applied to real normal heart sounds and murmurs, achieving satisfactory results.es
dc.description.sponsorshipThis work has been supported by Fundación Séneca of Región de Murcia and Ministerio de Ciencia y Tecnología of Spain, under grants PB/63/FS/02 and TIC2003-09400-C04-02, respectively.es
dc.formatapplication/pdf
dc.language.isoenges
dc.publisherTha Society of Photographic Instrumentation Engineers (SPIE)es
dc.rightsCopyright © SPIEes
dc.titleEfficient method for events detection in phonocardiographic signalses
dc.typeinfo:eu-repo/semantics/conferenceObjectes
dc.subjectFonocardiograma (FCG)es
dc.subjectSoplos cardíacoses
dc.subjectDetección de eventoses
dc.subjectSegmentaciónes
dc.subjectProcesamiento de señaleses
dc.subjectPhonocardiogrames
dc.subjectHeart murmurses
dc.subjectEvent detectiones
dc.subjectSegmentationes
dc.subjectSignal processinges
dc.subject.otherElectrónicaes
dc.identifier.urihttp://hdl.handle.net/10317/1416
dc.contributor.investgroupDiseño Electrónico y Técnicas de Tratamiento de Señales
dc.identifier.doi10.1117/12.608203


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