Computer modelling of RF ablation in cortical osteoid osteoma: Assessment of the insulating effect of the reactive zone

Autores
Irastorza, Ramiro Miguel; Trujillo, Macarena; Martel Villagrán, Jose; Berjano, Enrique
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Abstract: Purpose: The aim was to study by computer simulations the insulating role of the reactive zone surrounding a cortical osteoid osteoma (OO) in terms of electrical and thermal performance during radiofrequency ablation (RFA). Material and methods: We modelled a cortical OO consisting of a nidus (10 mm diameter) enclosed by a reactive zone. The OO was near a layer of cortical bone 1.5 mm thick. Trabecular bone partially surrounds the OO and there was muscle around the cortical bone layer. We modelled RF ablations with a non-cooled-tip 17-gauge needle electrode (300 s duration and 90 °C target temperature). Sensitivity analyses were conducted assuming a reactive zone electrical conductivity value (σrz) within the limits of the cortical and trabecular bone, i.e. 0.02 S/m and 0.087 S/m, respectively. In this way we were really modelling the different degrees of osteosclerosis associated with the reactive zone. Results: The presence of the reactive zone drastically reduced the maximum temperature reached outside it. The temperature drop was proportional to the thickness of the reactive zone: from 68 °C when it was absent to 44 °C when it is 7.5 mm thick. Higher nidus conductivity values (σn) implied higher temperatures, while lower temperatures meant higher σrz values. Changing σrz from 0.02 S/m to 0.087 S/m reduced lesion diameters from 2.4 cm to 1.8 cm. Conclusions: The computer results suggest that the reactive zone plays the role of insulator in terms of reducing the temperature in the surrounding area.
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 Liquidos y Sistemas Biologicos. Universidad Nacional de la Plata. Facultad de Cs.exactas. Instituto de Física de Liquidos y Sistemas Biologicos; Argentina
Fil: Trujillo, Macarena. Universidad Politécnica de Valencia; España
Fil: Martel Villagrán, Jose. Hospital Universitario Fundación Alorcón; España
Fil: Berjano, Enrique. Universidad Politécnica de Valencia; España
Materia
Computer Modelling
Cortical Bone
Finite Element Method
Osteoid Osteoma
Radiofrequency Ablation
Reactive Zone
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/17522
Acceder
id CONICETDig_618f2fb27f8cc4aead1086f49ee9fc1d
oai_identifier_str oai:ri.conicet.gov.ar:11336/17522
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Computer modelling of RF ablation in cortical osteoid osteoma: Assessment of the insulating effect of the reactive zoneIrastorza, Ramiro MiguelTrujillo, MacarenaMartel Villagrán, JoseBerjano, EnriqueComputer ModellingCortical BoneFinite Element MethodOsteoid OsteomaRadiofrequency AblationReactive Zonehttps://purl.org/becyt/ford/1.7https://purl.org/becyt/ford/1https://purl.org/becyt/ford/2.2https://purl.org/becyt/ford/2Abstract: Purpose: The aim was to study by computer simulations the insulating role of the reactive zone surrounding a cortical osteoid osteoma (OO) in terms of electrical and thermal performance during radiofrequency ablation (RFA). Material and methods: We modelled a cortical OO consisting of a nidus (10 mm diameter) enclosed by a reactive zone. The OO was near a layer of cortical bone 1.5 mm thick. Trabecular bone partially surrounds the OO and there was muscle around the cortical bone layer. We modelled RF ablations with a non-cooled-tip 17-gauge needle electrode (300 s duration and 90 °C target temperature). Sensitivity analyses were conducted assuming a reactive zone electrical conductivity value (σrz) within the limits of the cortical and trabecular bone, i.e. 0.02 S/m and 0.087 S/m, respectively. In this way we were really modelling the different degrees of osteosclerosis associated with the reactive zone. Results: The presence of the reactive zone drastically reduced the maximum temperature reached outside it. The temperature drop was proportional to the thickness of the reactive zone: from 68 °C when it was absent to 44 °C when it is 7.5 mm thick. Higher nidus conductivity values (σn) implied higher temperatures, while lower temperatures meant higher σrz values. Changing σrz from 0.02 S/m to 0.087 S/m reduced lesion diameters from 2.4 cm to 1.8 cm. Conclusions: The computer results suggest that the reactive zone plays the role of insulator in terms of reducing the temperature in the surrounding area.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 Liquidos y Sistemas Biologicos. Universidad Nacional de la Plata. Facultad de Cs.exactas. Instituto de Física de Liquidos y Sistemas Biologicos; ArgentinaFil: Trujillo, Macarena. Universidad Politécnica de Valencia; EspañaFil: Martel Villagrán, Jose. Hospital Universitario Fundación Alorcón; EspañaFil: Berjano, Enrique. Universidad Politécnica de Valencia; EspañaInforma Healthcare2016-02-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/17522Irastorza, Ramiro Miguel; Trujillo, Macarena; Martel Villagrán, Jose; Berjano, Enrique; Computer modelling of RF ablation in cortical osteoid osteoma: Assessment of the insulating effect of the reactive zone; Informa Healthcare; International Journal Of Hyperthermia; 32; 3; 5-2-2016; 221-2300265-6736enginfo:eu-repo/semantics/altIdentifier/doi/10.3109/02656736.2015.1135998info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/abs/10.3109/02656736.2015.1135998info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:06:15Zoai:ri.conicet.gov.ar:11336/17522instacron: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 10:06:15.93CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Computer modelling of RF ablation in cortical osteoid osteoma: Assessment of the insulating effect of the reactive zone
title Computer modelling of RF ablation in cortical osteoid osteoma: Assessment of the insulating effect of the reactive zone
spellingShingle Computer modelling of RF ablation in cortical osteoid osteoma: Assessment of the insulating effect of the reactive zone
Irastorza, Ramiro Miguel
Computer Modelling
Cortical Bone
Finite Element Method
Osteoid Osteoma
Radiofrequency Ablation
Reactive Zone
title_short Computer modelling of RF ablation in cortical osteoid osteoma: Assessment of the insulating effect of the reactive zone
title_full Computer modelling of RF ablation in cortical osteoid osteoma: Assessment of the insulating effect of the reactive zone
title_fullStr Computer modelling of RF ablation in cortical osteoid osteoma: Assessment of the insulating effect of the reactive zone
title_full_unstemmed Computer modelling of RF ablation in cortical osteoid osteoma: Assessment of the insulating effect of the reactive zone
title_sort Computer modelling of RF ablation in cortical osteoid osteoma: Assessment of the insulating effect of the reactive zone
dc.creator.none.fl_str_mv Irastorza, Ramiro Miguel
Trujillo, Macarena
Martel Villagrán, Jose
Berjano, Enrique
author Irastorza, Ramiro Miguel
author_facet Irastorza, Ramiro Miguel
Trujillo, Macarena
Martel Villagrán, Jose
Berjano, Enrique
author_role author
author2 Trujillo, Macarena
Martel Villagrán, Jose
Berjano, Enrique
author2_role author
author
author
dc.subject.none.fl_str_mv Computer Modelling
Cortical Bone
Finite Element Method
Osteoid Osteoma
Radiofrequency Ablation
Reactive Zone
topic Computer Modelling
Cortical Bone
Finite Element Method
Osteoid Osteoma
Radiofrequency Ablation
Reactive Zone
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/2.2
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Abstract: Purpose: The aim was to study by computer simulations the insulating role of the reactive zone surrounding a cortical osteoid osteoma (OO) in terms of electrical and thermal performance during radiofrequency ablation (RFA). Material and methods: We modelled a cortical OO consisting of a nidus (10 mm diameter) enclosed by a reactive zone. The OO was near a layer of cortical bone 1.5 mm thick. Trabecular bone partially surrounds the OO and there was muscle around the cortical bone layer. We modelled RF ablations with a non-cooled-tip 17-gauge needle electrode (300 s duration and 90 °C target temperature). Sensitivity analyses were conducted assuming a reactive zone electrical conductivity value (σrz) within the limits of the cortical and trabecular bone, i.e. 0.02 S/m and 0.087 S/m, respectively. In this way we were really modelling the different degrees of osteosclerosis associated with the reactive zone. Results: The presence of the reactive zone drastically reduced the maximum temperature reached outside it. The temperature drop was proportional to the thickness of the reactive zone: from 68 °C when it was absent to 44 °C when it is 7.5 mm thick. Higher nidus conductivity values (σn) implied higher temperatures, while lower temperatures meant higher σrz values. Changing σrz from 0.02 S/m to 0.087 S/m reduced lesion diameters from 2.4 cm to 1.8 cm. Conclusions: The computer results suggest that the reactive zone plays the role of insulator in terms of reducing the temperature in the surrounding area.
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 Liquidos y Sistemas Biologicos. Universidad Nacional de la Plata. Facultad de Cs.exactas. Instituto de Física de Liquidos y Sistemas Biologicos; Argentina
Fil: Trujillo, Macarena. Universidad Politécnica de Valencia; España
Fil: Martel Villagrán, Jose. Hospital Universitario Fundación Alorcón; España
Fil: Berjano, Enrique. Universidad Politécnica de Valencia; España
description Abstract: Purpose: The aim was to study by computer simulations the insulating role of the reactive zone surrounding a cortical osteoid osteoma (OO) in terms of electrical and thermal performance during radiofrequency ablation (RFA). Material and methods: We modelled a cortical OO consisting of a nidus (10 mm diameter) enclosed by a reactive zone. The OO was near a layer of cortical bone 1.5 mm thick. Trabecular bone partially surrounds the OO and there was muscle around the cortical bone layer. We modelled RF ablations with a non-cooled-tip 17-gauge needle electrode (300 s duration and 90 °C target temperature). Sensitivity analyses were conducted assuming a reactive zone electrical conductivity value (σrz) within the limits of the cortical and trabecular bone, i.e. 0.02 S/m and 0.087 S/m, respectively. In this way we were really modelling the different degrees of osteosclerosis associated with the reactive zone. Results: The presence of the reactive zone drastically reduced the maximum temperature reached outside it. The temperature drop was proportional to the thickness of the reactive zone: from 68 °C when it was absent to 44 °C when it is 7.5 mm thick. Higher nidus conductivity values (σn) implied higher temperatures, while lower temperatures meant higher σrz values. Changing σrz from 0.02 S/m to 0.087 S/m reduced lesion diameters from 2.4 cm to 1.8 cm. Conclusions: The computer results suggest that the reactive zone plays the role of insulator in terms of reducing the temperature in the surrounding area.
publishDate 2016
dc.date.none.fl_str_mv 2016-02-05
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/11336/17522
Irastorza, Ramiro Miguel; Trujillo, Macarena; Martel Villagrán, Jose; Berjano, Enrique; Computer modelling of RF ablation in cortical osteoid osteoma: Assessment of the insulating effect of the reactive zone; Informa Healthcare; International Journal Of Hyperthermia; 32; 3; 5-2-2016; 221-230
0265-6736
url http://hdl.handle.net/11336/17522
identifier_str_mv Irastorza, Ramiro Miguel; Trujillo, Macarena; Martel Villagrán, Jose; Berjano, Enrique; Computer modelling of RF ablation in cortical osteoid osteoma: Assessment of the insulating effect of the reactive zone; Informa Healthcare; International Journal Of Hyperthermia; 32; 3; 5-2-2016; 221-230
0265-6736
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.3109/02656736.2015.1135998
info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/abs/10.3109/02656736.2015.1135998
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv 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_ 1842269950184521728
score 13.13397

Publicaciones similares