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

Autores
Irastorza, Ramiro Miguel; González Suárez, Ana; Pérez, Juan J.; Berjano, Enrique
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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 Ω, which were consistent with those found (from 83 to 103 Ω) 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.
Fil: Irastorza, Ramiro Miguel. Universidad Nacional Arturo Jauretche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física de Líquidos y Sistemas Biológicos; Argentina
Fil: González Suárez, Ana. National University Of Ireland Galway.; Irlanda
Fil: Pérez, Juan J.. Universidad Politécnica de Valencia; España
Fil: Berjano, Enrique. Universidad Politécnica de Valencia; España
Materia
CARDIAC ABLATION
COMPUTER MODEL
LIMITED-DOMAIN MODEL
RF ABLATION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/154024
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Differences in applied electrical power between full thorax models and limited-domain models for RF cardiac ablationIrastorza, Ramiro MiguelGonzález Suárez, AnaPérez, Juan J.Berjano, EnriqueCARDIAC ABLATIONCOMPUTER MODELLIMITED-DOMAIN MODELRF ABLATIONhttps://purl.org/becyt/ford/2.2https://purl.org/becyt/ford/2Purpose: 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 Ω, which were consistent with those found (from 83 to 103 Ω) 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.Fil: Irastorza, Ramiro Miguel. Universidad Nacional Arturo Jauretche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física de Líquidos y Sistemas Biológicos; ArgentinaFil: González Suárez, Ana. National University Of Ireland Galway.; IrlandaFil: Pérez, Juan J.. Universidad Politécnica de Valencia; EspañaFil: Berjano, Enrique. Universidad Politécnica de Valencia; EspañaInforma Healthcare2020-06-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/154024Irastorza, Ramiro Miguel; González Suárez, Ana; Pérez, Juan J.; Berjano, Enrique; Differences in applied electrical power between full thorax models and limited-domain models for RF cardiac ablation; Informa Healthcare; International Journal Of Hyperthermia; 37; 1; 18-6-2020; 677-6870265-67361464-5157CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/02656736.2020.1777330info:eu-repo/semantics/altIdentifier/doi/10.1080/02656736.2020.1777330info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:11:18Zoai:ri.conicet.gov.ar:11336/154024instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:11:18.453CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Differences in applied electrical power between full thorax models and limited-domain models for RF cardiac ablation
title Differences in applied electrical power between full thorax models and limited-domain models for RF cardiac ablation
spellingShingle Differences in applied electrical power between full thorax models and limited-domain models for RF cardiac ablation
Irastorza, Ramiro Miguel
CARDIAC ABLATION
COMPUTER MODEL
LIMITED-DOMAIN MODEL
RF ABLATION
title_short Differences in applied electrical power between full thorax models and limited-domain models for RF cardiac ablation
title_full Differences in applied electrical power between full thorax models and limited-domain models for RF cardiac ablation
title_fullStr Differences in applied electrical power between full thorax models and limited-domain models for RF cardiac ablation
title_full_unstemmed Differences in applied electrical power between full thorax models and limited-domain models for RF cardiac ablation
title_sort Differences in applied electrical power between full thorax models and limited-domain models for RF cardiac ablation
dc.creator.none.fl_str_mv Irastorza, Ramiro Miguel
González Suárez, Ana
Pérez, Juan J.
Berjano, Enrique
author Irastorza, Ramiro Miguel
author_facet Irastorza, Ramiro Miguel
González Suárez, Ana
Pérez, Juan J.
Berjano, Enrique
author_role author
author2 González Suárez, Ana
Pérez, Juan J.
Berjano, Enrique
author2_role author
author
author
dc.subject.none.fl_str_mv CARDIAC ABLATION
COMPUTER MODEL
LIMITED-DOMAIN MODEL
RF ABLATION
topic CARDIAC ABLATION
COMPUTER MODEL
LIMITED-DOMAIN MODEL
RF ABLATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.2
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv 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 Ω, which were consistent with those found (from 83 to 103 Ω) 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.
Fil: Irastorza, Ramiro Miguel. Universidad Nacional Arturo Jauretche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física de Líquidos y Sistemas Biológicos; Argentina
Fil: González Suárez, Ana. National University Of Ireland Galway.; Irlanda
Fil: Pérez, Juan J.. Universidad Politécnica de Valencia; España
Fil: Berjano, Enrique. Universidad Politécnica de Valencia; España
description 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 Ω, which were consistent with those found (from 83 to 103 Ω) 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.
publishDate 2020
dc.date.none.fl_str_mv 2020-06-18
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/154024
Irastorza, Ramiro Miguel; González Suárez, Ana; Pérez, Juan J.; Berjano, Enrique; Differences in applied electrical power between full thorax models and limited-domain models for RF cardiac ablation; Informa Healthcare; International Journal Of Hyperthermia; 37; 1; 18-6-2020; 677-687
0265-6736
1464-5157
CONICET Digital
CONICET
url http://hdl.handle.net/11336/154024
identifier_str_mv Irastorza, Ramiro Miguel; González Suárez, Ana; Pérez, Juan J.; Berjano, Enrique; Differences in applied electrical power between full thorax models and limited-domain models for RF cardiac ablation; Informa Healthcare; International Journal Of Hyperthermia; 37; 1; 18-6-2020; 677-687
0265-6736
1464-5157
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/02656736.2020.1777330
info:eu-repo/semantics/altIdentifier/doi/10.1080/02656736.2020.1777330
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Informa Healthcare
publisher.none.fl_str_mv Informa Healthcare
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842270152702296064
score 13.13397

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