- -

Dynamic time warping applied to estimate atrial fibrillation temporal organization from the surface electrocardiogram

RiuNet: Institutional repository of the Polithecnic University of Valencia

Share/Send to

Cited by

Statistics

Dynamic time warping applied to estimate atrial fibrillation temporal organization from the surface electrocardiogram

Show simple item record

Files in this item

dc.contributor.author Alcaraz, Raul es_ES
dc.contributor.author Hornero, Fernando es_ES
dc.contributor.author Rieta, J J es_ES
dc.date.accessioned 2014-10-27T19:17:00Z
dc.date.available 2014-10-27T19:17:00Z
dc.date.issued 2013-09
dc.identifier.issn 1350-4533
dc.identifier.uri http://hdl.handle.net/10251/43625
dc.description.abstract Atrial fibrillation (AF) is the most commonly diagnosed arrhythmia in clinical practice. However, the mechanisms responsible for its induction and maintenance still are not fully understood. To this respect, analysis of the electrical activity organization within the atria could play an important role in their proper interpretation. Although many algorithms to quantify AF organization from invasive electrograms can be found in the literature, a reduced number of indirect estimators from the standard ECG have been proposed to date. Furthermore, these surface methods can only yield a global AF organization assessment, blurring the possible information that each individual fibrillatory (f) wave may provide. To this respect, the present manuscript proposes a novel method for direct and short-time AF organization estimation from single-lead surface ECG recordings. Through the computation of morphological variations among f waves, the temporal arrhythmia organization is estimated. The f waves are individually extracted and delineated from the atrial activity signal, making use of a dynamic time warping approach. The proposed algorithm was tested on real AF surface recordings in order to discriminate atrial signals with different organization degrees, obtaining a diagnostic accuracy higher than 88%. In addition, its performance was validated by comparison with two temporal organization measures from invasive unipolar electrograms of both atria, providing statistically significant linear correlations between invasive and non-invasive estimates. As a consequence, new standpoints are opened through this work in the non-invasive analysis of AF, where the individualized study of each f wave could assess short-time AF organization, would improve the understanding of AF mechanisms and become useful for its clinical treatment. es_ES
dc.description.sponsorship This work was supported by the projects TEC2010-20633 from the Spanish Ministry of Science and Innovation and PPII11-0194-8121 from Junta de Comunidades de Castilla-La Mancha. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation Spanish Ministry of Science and Innovation [TEC2010-20633] es_ES
dc.relation Junta de Comunidades de Castilla-La Mancha [PPII11-0194-8121] es_ES
dc.relation.ispartof Medical Engineering and Physics es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Atrial fibrillation es_ES
dc.subject ECG es_ES
dc.subject Fibrillatory waves regularity es_ES
dc.subject Signal processing es_ES
dc.subject Waveform morphology es_ES
dc.subject.classification TECNOLOGIA ELECTRONICA es_ES
dc.title Dynamic time warping applied to estimate atrial fibrillation temporal organization from the surface electrocardiogram es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.medengphy.2013.03.004
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Electrónica - Departament d'Enginyeria Electrònica es_ES
dc.description.bibliographicCitation Alcaraz, R.; Hornero, F.; Rieta, JJ. (2013). Dynamic time warping applied to estimate atrial fibrillation temporal organization from the surface electrocardiogram. Medical Engineering and Physics. 35(9):1341-1348. doi:10.1016/j.medengphy.2013.03.004 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.medengphy.2013.03.004 es_ES
dc.description.upvformatpinicio 1341 es_ES
dc.description.upvformatpfin 1348 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 35 es_ES
dc.description.issue 9 es_ES
dc.relation.senia 260195


This item appears in the following Collection(s)

Show simple item record