Show simple item record

hal.structure.identifierImperial College London
dc.contributor.authorRONEY, Caroline
hal.structure.identifierImperial College London
dc.contributor.authorCANTWELL, Chris
hal.structure.identifierImperial College London
dc.contributor.authorQURESHI, Norman
hal.structure.identifierImperial College London
dc.contributor.authorCHOWDHURY, Rasheda
hal.structure.identifierImperial College London
dc.contributor.authorDUPONT, Emmanuel
hal.structure.identifierImperial College London
dc.contributor.authorLIM, Phang Boon
hal.structure.identifierModélisation et calculs pour l'électrophysiologie cardiaque [CARMEN]
dc.contributor.authorVIGMOND, Edward
hal.structure.identifierImperial College London
dc.contributor.authorTWEEDY, Jennifer
hal.structure.identifierImperial College London
dc.contributor.authorNG, Fu Siong
hal.structure.identifierImperial College London
dc.contributor.authorPETERS, Nicholas
dc.date.accessioned2024-04-04T02:51:17Z
dc.date.available2024-04-04T02:51:17Z
dc.date.issued2017-04
dc.identifier.issn0090-6964
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/191979
dc.description.abstractEnExtracellular electrograms recorded during atrial fibrillation (AF) are challenging to interpret due to the inherent beat-to-beat variability in amplitude and duration. Phase mapping represents these voltage signals in terms of relative position within the cycle, and has been widely applied to action potential and unipolar electrogram data of myocardial fibrillation. To date, however, it has not been applied to bipolar recordings, which are commonly acquired clinically. The purpose of this study is to present a novel algorithm for calculating phase from both unipolar and bipolar electrograms recorded during AF. A sequence of signal filters and processing steps are used to calculate phase from simulated, experimental, and clinical, unipolar and bipolar electrograms. The algorithm is validated against action potential phase using simulated data (trajectory centre error <0.8 mm); between experimental multi-electrode array unipolar and bipolar phase; and for wavefront identification in clinical atrial tachycardia. For clinical AF, similar rotational content (R 2 = 0.79) and propagation maps (median correlation 0.73) were measured using either unipolar or bipolar recordings. The algorithm is robust, uses standard signal processing techniques, and accurately quantifies AF wavefronts and sources. Identifying critical sources, such as rotors, in AF, may allow for more accurate targeting of ablation therapy and improved patient outcomes.
dc.language.isoen
dc.publisherSpringer Verlag
dc.subject.enCardiac arrhythmia
dc.subject.enElectrogram analysis
dc.subject.enPhase singularity mapping
dc.title.enRotor Tracking Using Phase of Electrograms Recorded During Atrial Fibrillation
dc.typeArticle de revue
dc.identifier.doi10.1007/s10439-016-1766-4
dc.subject.halSciences du Vivant [q-bio]/Ingénierie biomédicale
dc.subject.halSciences du Vivant [q-bio]/Médecine humaine et pathologie/Cardiologie et système cardiovasculaire
bordeaux.journalAnnals of Biomedical Engineering
bordeaux.page910-923
bordeaux.volume45
bordeaux.hal.laboratoriesInstitut de Mathématiques de Bordeaux (IMB) - UMR 5251*
bordeaux.issue4
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-02885671
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02885671v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=Annals%20of%20Biomedical%20Engineering&amp;rft.date=2017-04&amp;rft.volume=45&amp;rft.issue=4&amp;rft.spage=910-923&amp;rft.epage=910-923&amp;rft.eissn=0090-6964&amp;rft.issn=0090-6964&amp;rft.au=RONEY,%20Caroline&amp;CANTWELL,%20Chris&amp;QURESHI,%20Norman&amp;CHOWDHURY,%20Rasheda&amp;DUPONT,%20Emmanuel&amp;rft.genre=article


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record