An intracardiac electrogram model to bridge virtual hearts and implantable cardiac devices

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dc.contributor.author Ai, Weiwei en
dc.contributor.author Patel, Nitish en
dc.contributor.author Roop, Parthasarathi en
dc.contributor.author Malik, Avinash en
dc.contributor.author Allen, N en
dc.contributor.author Trew, Mark en
dc.coverage.spatial Seogwipo, South Korea en
dc.date.accessioned 2019-11-21T03:31:30Z en
dc.date.issued 2017-07-20 en
dc.identifier.isbn 9781509028092 en
dc.identifier.issn 1557-170X en
dc.identifier.uri http://hdl.handle.net/2292/48996 en
dc.description.abstract Virtual heart models have been proposed to enhance the safety of implantable cardiac devices through closed loop validation. To communicate with a virtual heart, devices have been driven by cardiac signals at specific sites. As a result, only the action potentials of these sites are sensed. However, the real device implanted in the heart will sense a complex combination of near and far-field extracellular potential signals. Therefore many device functions, such as blanking periods and refractory periods, are designed to handle these unexpected signals. To represent these signals, we develop an intracardiac electrogram (IEGM) model as an interface between the virtual heart and the device. The model can capture not only the local excitation but also far-field signals and pacing afterpotentials. Moreover, the sensing controller can specify unipolar or bipolar electrogram (EGM) sensing configurations and introduce various oversensing and undersensing modes. The simulation results show that the model is able to reproduce clinically observed sensing problems, which significantly extends the capabilities of the virtual heart model in the context of device validation. en
dc.publisher IEEE en
dc.relation.ispartof 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society en
dc.relation.ispartofseries Proceedings 2017 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title An intracardiac electrogram model to bridge virtual hearts and implantable cardiac devices en
dc.type Conference Item en
dc.identifier.doi 10.1109/EMBC.2017.8037237 en
pubs.begin-page 1974 en
dc.rights.holder Copyright: The author en
pubs.end-page 0977 en
pubs.finish-date 2017-06-15 en
pubs.start-date 2017-07-11 en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Proceedings en
pubs.elements-id 633666 en
pubs.org-id Bioengineering Institute en
pubs.org-id ABI Associates en
pubs.org-id Engineering en
pubs.org-id Department of Electrical, Computer and Software Engineering en
pubs.arxiv-id 1703.01107 en
dc.identifier.eissn 1558-4615 en
pubs.record-created-at-source-date 2017-06-30 en
pubs.dimensions-id 29060281 en


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