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dc.contributor.author
Irastorza, Ramiro Miguel
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dc.contributor.author
Trujillo, Macarena
dc.contributor.author
Berjano, Enrique
dc.date.available
2018-08-28T22:42:22Z
dc.date.issued
2017-11
dc.identifier.citation
Irastorza, Ramiro Miguel; Trujillo, Macarena; Berjano, Enrique; How coagulation zone size is underestimated in computer modeling of RF ablation by ignoring the cooling phase just after RF power is switched off; Wiley Blackwell Publishing, Inc; International Journal for Numerical Methods in Biomedical Engineering; 33; 11; 11-2017; 1-23; e2869
dc.identifier.issn
2040-7947
dc.identifier.uri
http://hdl.handle.net/11336/57478
dc.description.abstract
All the numerical models developed for radiofrequency ablation so far have ignored the possible effect of the cooling phase (just after radiofrequency power is switched off) on the dimensions of the coagulation zone. Our objective was thus to quantify the differences in the minor radius of the coagulation zone computed by including and ignoring the cooling phase. We built models of RF tumor ablation with 2 needle-like electrodes: a dry electrode (5 mm long and 17G in diameter) with a constant temperature protocol (70°C) and a cooled electrode (30 mm long and 17G in diameter) with a protocol of impedance control. We observed that the computed coagulation zone dimensions were always underestimated when the cooling phase was ignored. The mean values of the differences computed along the electrode axis were always lower than 0.15 mm for the dry electrode and 1.5 mm for the cooled electrode, which implied a value lower than 5% of the minor radius of the coagulation zone (which was 3 mm for the dry electrode and 30 mm for the cooled electrode). The underestimation was found to be dependent on the tissue characteristics: being more marked for higher values of specific heat and blood perfusion and less marked for higher values of thermal conductivity.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Ablation
dc.subject
Radiofrequency Heating
dc.subject
Tumor Ablation
dc.subject.classification
Ingeniería de Sistemas y Comunicaciones
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dc.subject.classification
Ingeniería Eléctrica, Ingeniería Electrónica e Ingeniería de la Información
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.subject.classification
Astronomía
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dc.subject.classification
Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
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dc.title
How coagulation zone size is underestimated in computer modeling of RF ablation by ignoring the cooling phase just after RF power is switched off
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-08-28T18:44:40Z
dc.journal.volume
33
dc.journal.number
11
dc.journal.pagination
1-23; e2869
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Malden
dc.description.fil
Fil: Irastorza, Ramiro Miguel. 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. Universidad Nacional Arturo Jauretche. Instituto de Ingeniería y Agronomía; Argentina
dc.description.fil
Fil: Trujillo, Macarena. Universidad Politécnica de Valencia; España
dc.description.fil
Fil: Berjano, Enrique. Universidad Politécnica de Valencia; España
dc.journal.title
International Journal for Numerical Methods in Biomedical Engineering
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/cnm.2869
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/cnm.2869
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