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Analytical Model Based on a Cylindrical Geometry to Study RF Ablation with Needle-Like Internally Cooled Electrode

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Analytical Model Based on a Cylindrical Geometry to Study RF Ablation with Needle-Like Internally Cooled Electrode

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dc.contributor.author López Molina, Juan Antonio es_ES
dc.contributor.author Rivera Ortun, María José es_ES
dc.contributor.author Berjano Zanón, Enrique es_ES
dc.date.accessioned 2017-03-13T10:25:32Z
dc.date.available 2017-03-13T10:25:32Z
dc.date.issued 2012
dc.identifier.issn 1024-123X
dc.identifier.uri http://hdl.handle.net/10251/78698
dc.description.abstract Radiofrequency (RF) ablation with internally cooled needle-like electrodes is widely used in medical techniques such as tumor ablation. The device consists of a metallic electrode with an internal liquid cooling system that cools the electrode surface. Theoretical modeling is a rapid and inexpensive way of studying different aspects of the RF ablation process by the bioheat equation, and the analytical approach provides an exact solution to the thermal problem. Our aim was to solve analytically the RF ablation transient time problem with a needle-like internally cooled cylindrical electrode while considering the blood perfusion term. The results showed that the maximal tissue temperature is reached 3mm from the electrode, which confirms previous experimental findings. We also observed that the temperature distributions were similar for three coolant temperature values (5 °C, 15 °C, and 25 °C). The differences were only notable in temperature very close to the probe. Finally, considering the 50 °C line as a thermal lesion mark, we found that lesion diameter was around 2cm, which is exactly that observed experimentally in perfused hepatic tissue and slightly smaller than that observed in nonperfused (ex vivo) hepatic tissue. Copyright © 2012 Juan A. Lpez Molina et al. es_ES
dc.description.sponsorship This work received financial support from the Spanish "Plan Nacional de I + D + i del Ministerio de Ciencia e Innovacion" Grant no. TEC2008-01369/TEC. The translation of this paper was funded by the Universitat Politecnica de Valencia, Spain. en_EN
dc.language Inglés es_ES
dc.publisher Hindawi Publishing Corporation es_ES
dc.relation.ispartof Mathematical Problems in Engineering es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Ablation process es_ES
dc.subject Analytical approach es_ES
dc.subject Analytical model es_ES
dc.subject Bio-heat equations es_ES
dc.subject Blood perfusion es_ES
dc.subject Coolant temperature es_ES
dc.subject Cylindrical electrodes es_ES
dc.subject Cylindrical geometry es_ES
dc.subject Electrode surfaces es_ES
dc.subject Ex-vivo es_ES
dc.subject Exact solution es_ES
dc.subject Hepatic tissue es_ES
dc.subject Lesion diameter es_ES
dc.subject Liquid cooling systems es_ES
dc.subject Medical techniques es_ES
dc.subject Metallic electrodes es_ES
dc.subject Needle-like es_ES
dc.subject Radiofrequency ablation es_ES
dc.subject Theoretical modeling es_ES
dc.subject Thermal lesion es_ES
dc.subject Tissue temperatures es_ES
dc.subject Transient time es_ES
dc.subject Tumor ablation es_ES
dc.subject Cooling systems es_ES
dc.subject Cylinders (shapes) es_ES
dc.subject Mathematical models es_ES
dc.subject Needles es_ES
dc.subject Tissue es_ES
dc.subject Ablation es_ES
dc.subject.classification MATEMATICA APLICADA es_ES
dc.subject.classification TECNOLOGIA ELECTRONICA es_ES
dc.title Analytical Model Based on a Cylindrical Geometry to Study RF Ablation with Needle-Like Internally Cooled Electrode es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1155/2012/834807
dc.relation.projectID info:eu-repo/grantAgreement/MICINN//TEC2008-01369/ES/MODELOS COMPUTACIONALES E INVESTIGACION EXPERIMENTAL EN EL ESTUDIO DE TECNICAS QUIRURGICAS DE CALENTAMIENTO DE TEJIDOS BIOLOGICOS MEDIANTE CORRIENTES DE RADIOFRECUENCIA./ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario de Matemática Pura y Aplicada - Institut Universitari de Matemàtica Pura i Aplicada es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería del Diseño - Escola Tècnica Superior d'Enginyeria del Disseny es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural - Escola Tècnica Superior d'Enginyeria Agronòmica i del Medi Natural es_ES
dc.description.bibliographicCitation López Molina, JA.; Rivera Ortun, MJ.; Berjano Zanón, E. (2012). Analytical Model Based on a Cylindrical Geometry to Study RF Ablation with Needle-Like Internally Cooled Electrode. Mathematical Problems in Engineering. 2012:1-16. https://doi.org/10.1155/2012/834807 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1155/2012/834807 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 16 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 2012 es_ES
dc.relation.senia 212041 es_ES
dc.contributor.funder Ministerio de Ciencia e Innovación es_ES


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