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Differences in applied electrical power between full thorax models and limited domain models for RF cardiac ablation

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Differences in applied electrical power between full thorax models and limited domain models for RF cardiac ablation

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dc.contributor.author Irastorza, Ramiro M. es_ES
dc.contributor.author Gonzalez-Suarez, Ana es_ES
dc.contributor.author Pérez, Juan J es_ES
dc.contributor.author Berjano, Enrique es_ES
dc.date.accessioned 2021-02-16T04:32:39Z
dc.date.available 2021-02-16T04:32:39Z
dc.date.issued 2020-01-01 es_ES
dc.identifier.issn 0265-6736 es_ES
dc.identifier.uri http://hdl.handle.net/10251/161394
dc.description.abstract [EN] Purpose:Most modeling studies on radiofrequency cardiac ablation (RFCA) are based on limited-domain models, which means the computational domain is restricted to a few centimeters of myocardium and blood around the active electrode. When mimicking constant power RFCA procedures (e.g., atrial fibrillation ablation) it is important to know how much power is absorbed around the active electrode and how much in the rest of the tissues before reaching the dispersive electrode. Methods:3D thorax full models were built by progressively incorporating different organs and tissues with simplified geometries (cardiac chamber, cardiac wall, subcutaneous tissue and skin, spine, lungs and aorta). Other 2D limited-domain models were also built based on fragments of myocardium and blood. The electrical problem was solved for each model to estimate the spatial power distribution around the active electrode. Results:From 79 to 82% of the power was absorbed in a 4 cm-radius sphere around the active electrode in the full thorax model at active electrode insertion depths of between 0.5 and 2.5 mm, while the impedance values ranged from 104 to 118 omega, which were consistent with those found (from 83 to 103 omega) in a 4 cm radius cylindrical limited domain model. Conclusion:The applied power in limited-domain RFCA models is approximately 80% of that applied in full thorax models, which is equivalent to the power programed in a clinical setting. es_ES
dc.description.sponsorship This work was supported by the Spanish Ministerio de Economia, Industria y Competitividad under `Plan Estatal de Investigacion, Desarrollo e Innovacion Orientada a los Retos de la Sociedad', Grant No [RTI2018094357-B-C21], by the Universidad Nacional Arturo Jauretche Argentina 'UNAJ Investiga' [80020170100019UJ], and by `Agencia Nacional de Promocion Cientifica y Tecnologica de Argentina' [PICT2016-2303]. es_ES
dc.language Inglés es_ES
dc.publisher Taylor & Francis es_ES
dc.relation.ispartof International Journal of Hyperthermia es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject Cardiac ablation es_ES
dc.subject Computer model es_ES
dc.subject Limited-domain model es_ES
dc.subject RF ablation es_ES
dc.subject Thorax model es_ES
dc.subject.classification TECNOLOGIA ELECTRONICA es_ES
dc.title Differences in applied electrical power between full thorax models and limited domain models for RF cardiac ablation es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1080/02656736.2020.1777330 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/ANPCyT//PICT-2016-2303/AR/Desarrollo e implementación de una metodología para la evaluación in vivo de la calidad ósea./ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/Universidad Nacional Arturo Jauretche//80020170100019UJ/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-094357-B-C21/ES/MODELADO Y EXPERIMENTACION PARA TERAPIAS ABLATIVAS INNOVADORAS/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Electrónica - Departament d'Enginyeria Electrònica es_ES
dc.description.bibliographicCitation Irastorza, RM.; Gonzalez-Suarez, A.; Pérez, JJ.; Berjano, E. (2020). Differences in applied electrical power between full thorax models and limited domain models for RF cardiac ablation. International Journal of Hyperthermia. 37(1):677-687. https://doi.org/10.1080/02656736.2020.1777330 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1080/02656736.2020.1777330 es_ES
dc.description.upvformatpinicio 677 es_ES
dc.description.upvformatpfin 687 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 37 es_ES
dc.description.issue 1 es_ES
dc.identifier.pmid 32552167 es_ES
dc.relation.pasarela S\414190 es_ES
dc.contributor.funder Agencia Estatal de Investigación es_ES
dc.contributor.funder Universidad Nacional Arturo Jauretche, Argentina es_ES
dc.contributor.funder Agencia Nacional de Promoción Científica y Tecnológica, Argentina es_ES
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