Computational modeling of internally cooled wet (ICW) electrodes for radiofrequency ablation: Impact of rehydration, thermal convection and electrical conductivity

[EN] Purpose: (1) To analyse rehydration, thermal convection and increased electrical conductivity as the three phenomena which distinguish the performance of internally cooled electrodes (IC) and internally cooled wet (ICW) electrodes during radiofrequency ablation (RFA), (2) Implement a RFA comput...

Descripción completa

Detalles Bibliográficos
Autores: Trujillo Guillen, Macarena|||0000-0003-4145-2188, Bon Corbín, José|||0000-0002-0457-9705, Berjano, Enrique|||0000-0002-3247-2665
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/99051
Acceso en línea:https://riunet.upv.es/handle/10251/99051
Access Level:acceso abierto
Palabra clave:Computer modelling
Internally cooled electrode
Radiofrequency ablation
Electrical conductivity
Rehydration
MATEMATICA APLICADA
TECNOLOGIA DE ALIMENTOS
TECNOLOGIA ELECTRONICA
id ES_80a1f6f2acd6420a2425afb876ecae57
oai_identifier_str oai:riunet.upv.es:10251/99051
network_acronym_str ES
network_name_str España
repository_id_str
spelling Computational modeling of internally cooled wet (ICW) electrodes for radiofrequency ablation: Impact of rehydration, thermal convection and electrical conductivityTrujillo Guillen, Macarena|||0000-0003-4145-2188Bon Corbín, José|||0000-0002-0457-9705Berjano, Enrique|||0000-0002-3247-2665Computer modellingInternally cooled electrodeRadiofrequency ablationElectrical conductivityRehydrationMATEMATICA APLICADATECNOLOGIA DE ALIMENTOSTECNOLOGIA ELECTRONICA[EN] Purpose: (1) To analyse rehydration, thermal convection and increased electrical conductivity as the three phenomena which distinguish the performance of internally cooled electrodes (IC) and internally cooled wet (ICW) electrodes during radiofrequency ablation (RFA), (2) Implement a RFA computer model with an ICW which includes these phenomena and (3) Assess their relative influence on the thermal and electrical tissue response and on the coagulation zone size. Methods: A 12-min RFA in liver was modelled using an ICW electrode (17G, 3cm tip) by an impedance-control pulsing protocol with a constant current of 1.5A. A model of an IC electrode was used to compare the ICW electrode performance and the computational results with the experimental results. Results: Rehydration and increased electrical conductivity were responsible for an increase in coagulation zone size and a delay (or absence) in the occurrence of abrupt increases in electrical impedance (roll-off). While the increased electrical conductivity had a remarkable effect on enlarging the coagulation zone (an increase of 0.74cm for differences in electrical conductivity of 0.31S/m), rehydration considerably affected the delay in roll-off, which, in fact, was absent with a sufficiently high rehydration level. In contrast, thermal convection had an insignificant effect for the flow rates considered (0.05 and 1mL/min). Conclusions: Computer results suggest that rehydration and increased electrical conductivity were mainly responsible for the absence of roll-off and increased size of the coagulation zone, respectively, and in combination allow the thermal and electrical performance of ICW electrodes to be modelled during RFA.This work was supported by the Government of Spain through the Spanish Plan Estatal de Investigacion, Desarrollo e Innovacion Orientada a los Retos de la Sociedad under grant number TEC2014-52383-C3-R (TEC2014-52383-C3-1-R).Taylor & FrancisDepartamento de Tecnología de AlimentosDepartamento de Ingeniería ElectrónicaDepartamento de Matemática AplicadaEscuela Técnica Superior de Ingeniería Aeroespacial y Diseño IndustrialEscuela Técnica Superior de ArquitecturaInstituto Universitario de Ingeniería de Alimentos (FoodUPV)Escuela Técnica Superior de Ingeniería Agronómica y del Medio NaturalGrupo de Análisis y Simulación de Procesos AgroalimentariosBiosignals & Minimally Invasive Technologies-BioMITMinisterio de Economía, Industria y CompetitividadRepositorio Institucional de la Universitat Politècnica de València Riunet20172017-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://riunet.upv.es/handle/10251/99051reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengMinisterio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 TEC2014-52383-C3-1-R TECNOLOGIAS BASADAS EN ENERGIA DE RADIOFRECUENCIA Y MICROONDAS PARA CIRUGIA DE MINIMA INVASIONopen accesshttp://purl.org/coar/access_right/c_abf2Reserva de todos los derechoshttp://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/990512026-06-13T07:49:27Z
dc.title.none.fl_str_mv Computational modeling of internally cooled wet (ICW) electrodes for radiofrequency ablation: Impact of rehydration, thermal convection and electrical conductivity
title Computational modeling of internally cooled wet (ICW) electrodes for radiofrequency ablation: Impact of rehydration, thermal convection and electrical conductivity
spellingShingle Computational modeling of internally cooled wet (ICW) electrodes for radiofrequency ablation: Impact of rehydration, thermal convection and electrical conductivity
Trujillo Guillen, Macarena|||0000-0003-4145-2188
Computer modelling
Internally cooled electrode
Radiofrequency ablation
Electrical conductivity
Rehydration
MATEMATICA APLICADA
TECNOLOGIA DE ALIMENTOS
TECNOLOGIA ELECTRONICA
title_short Computational modeling of internally cooled wet (ICW) electrodes for radiofrequency ablation: Impact of rehydration, thermal convection and electrical conductivity
title_full Computational modeling of internally cooled wet (ICW) electrodes for radiofrequency ablation: Impact of rehydration, thermal convection and electrical conductivity
title_fullStr Computational modeling of internally cooled wet (ICW) electrodes for radiofrequency ablation: Impact of rehydration, thermal convection and electrical conductivity
title_full_unstemmed Computational modeling of internally cooled wet (ICW) electrodes for radiofrequency ablation: Impact of rehydration, thermal convection and electrical conductivity
title_sort Computational modeling of internally cooled wet (ICW) electrodes for radiofrequency ablation: Impact of rehydration, thermal convection and electrical conductivity
dc.creator.none.fl_str_mv Trujillo Guillen, Macarena|||0000-0003-4145-2188
Bon Corbín, José|||0000-0002-0457-9705
Berjano, Enrique|||0000-0002-3247-2665
author Trujillo Guillen, Macarena|||0000-0003-4145-2188
author_facet Trujillo Guillen, Macarena|||0000-0003-4145-2188
Bon Corbín, José|||0000-0002-0457-9705
Berjano, Enrique|||0000-0002-3247-2665
author_role author
author2 Bon Corbín, José|||0000-0002-0457-9705
Berjano, Enrique|||0000-0002-3247-2665
author2_role author
author
dc.contributor.none.fl_str_mv Departamento de Tecnología de Alimentos
Departamento de Ingeniería Electrónica
Departamento de Matemática Aplicada
Escuela Técnica Superior de Ingeniería Aeroespacial y Diseño Industrial
Escuela Técnica Superior de Arquitectura
Instituto Universitario de Ingeniería de Alimentos (FoodUPV)
Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural
Grupo de Análisis y Simulación de Procesos Agroalimentarios
Biosignals & Minimally Invasive Technologies-BioMIT
Ministerio de Economía, Industria y Competitividad
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Computer modelling
Internally cooled electrode
Radiofrequency ablation
Electrical conductivity
Rehydration
MATEMATICA APLICADA
TECNOLOGIA DE ALIMENTOS
TECNOLOGIA ELECTRONICA
topic Computer modelling
Internally cooled electrode
Radiofrequency ablation
Electrical conductivity
Rehydration
MATEMATICA APLICADA
TECNOLOGIA DE ALIMENTOS
TECNOLOGIA ELECTRONICA
description [EN] Purpose: (1) To analyse rehydration, thermal convection and increased electrical conductivity as the three phenomena which distinguish the performance of internally cooled electrodes (IC) and internally cooled wet (ICW) electrodes during radiofrequency ablation (RFA), (2) Implement a RFA computer model with an ICW which includes these phenomena and (3) Assess their relative influence on the thermal and electrical tissue response and on the coagulation zone size. Methods: A 12-min RFA in liver was modelled using an ICW electrode (17G, 3cm tip) by an impedance-control pulsing protocol with a constant current of 1.5A. A model of an IC electrode was used to compare the ICW electrode performance and the computational results with the experimental results. Results: Rehydration and increased electrical conductivity were responsible for an increase in coagulation zone size and a delay (or absence) in the occurrence of abrupt increases in electrical impedance (roll-off). While the increased electrical conductivity had a remarkable effect on enlarging the coagulation zone (an increase of 0.74cm for differences in electrical conductivity of 0.31S/m), rehydration considerably affected the delay in roll-off, which, in fact, was absent with a sufficiently high rehydration level. In contrast, thermal convection had an insignificant effect for the flow rates considered (0.05 and 1mL/min). Conclusions: Computer results suggest that rehydration and increased electrical conductivity were mainly responsible for the absence of roll-off and increased size of the coagulation zone, respectively, and in combination allow the thermal and electrical performance of ICW electrodes to be modelled during RFA.
publishDate 2017
dc.date.none.fl_str_mv 2017
2017-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/99051
url https://riunet.upv.es/handle/10251/99051
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 TEC2014-52383-C3-1-R TECNOLOGIAS BASADAS EN ENERGIA DE RADIOFRECUENCIA Y MICROONDAS PARA CIRUGIA DE MINIMA INVASION
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Taylor & Francis
publisher.none.fl_str_mv Taylor & Francis
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869411912886779904
score 15,300719

Similares en LA Referencia