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Localization of Three-Dimensional Sources in Cardiac Tissue Using Optical Mapping

hal.structure.identifierModélisation et calculs pour l'électrophysiologie cardiaque [CARMEN]
hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
hal.structure.identifierIHU-LIRYC
dc.contributor.authorRAVON, Gwladys
hal.structure.identifierModélisation et calculs pour l'électrophysiologie cardiaque [CARMEN]
hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
hal.structure.identifierIHU-LIRYC
dc.contributor.authorCOUDIÈRE, Yves
hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
hal.structure.identifierModeling Enablers for Multi-PHysics and InteractionS [MEMPHIS]
dc.contributor.authorIOLLO, Angelo
hal.structure.identifierIHU-LIRYC
dc.contributor.authorBERNUS, Oliver
hal.structure.identifierIHU-LIRYC
dc.contributor.authorWALTON, Richard D.
dc.date.accessioned2024-04-04T03:19:00Z
dc.date.available2024-04-04T03:19:00Z
dc.date.conference2014-09-07
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/194463
dc.description.abstractEnOptical mapping allows the visualization of cardiac ac-tion potentials on cardiac tissue surfaces by fluorescence using voltage-sensitive dyes. So far, the surface measure-ments are directly related to surface action potentials. We aim at exploiting these measurements in order to recon-struct three-dimensional action potentials. In this prelimi-nary work, we tried to localize fixed electrical sources in a three-dimensional slab of tissue. Therefore, we minimized the difference between the measure and a model, in a least squares sense. The model is based on the diffusion equa-tion for the propagation of light, and simplified spherical or ellipsoidal electrical wavefronts. The inverse problem is solved by combining the gradient method and the BFGS algorithm. The method was challenged on data in silico, and then on experimental data. The results show improve-ments over previous localization methods on data in silico, although its use on experimental data still requires some work.
dc.language.isoen
dc.subject.enoptical mapping
dc.subject.enmathematical modeling
dc.subject.eninverse problem
dc.title.enLocalization of Three-Dimensional Sources in Cardiac Tissue Using Optical Mapping
dc.typeCommunication dans un congrès
dc.subject.halMathématiques [math]
bordeaux.page829 - 832
bordeaux.volume41
bordeaux.hal.laboratoriesInstitut de Mathématiques de Bordeaux (IMB) - UMR 5251*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.conference.titleCinC 2014 : Computing in Cardiology Conference
bordeaux.countryUS
bordeaux.conference.cityCambridge
bordeaux.peerReviewedoui
hal.identifierhal-01114916
hal.version1
hal.invitednon
hal.proceedingsoui
hal.conference.end2014-09-10
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01114916v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.volume=41&rft.spage=829%20-%20832&rft.epage=829%20-%20832&rft.au=RAVON,%20Gwladys&COUDI%C3%88RE,%20Yves&IOLLO,%20Angelo&BERNUS,%20Oliver&WALTON,%20Richard%20D.&rft.genre=unknown


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