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Distant infusion of saline may enlarge coagulation volume during radiofrequency ablation of liver tissue using cool-tip electrodes without impairing predictability

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Distant infusion of saline may enlarge coagulation volume during radiofrequency ablation of liver tissue using cool-tip electrodes without impairing predictability

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dc.contributor.author Burdío, Fernando es_ES
dc.contributor.author Tobajas, Pilar es_ES
dc.contributor.author Quesada-Diez, Rita es_ES
dc.contributor.author Berjano, Enrique es_ES
dc.contributor.author Navarro, Ana es_ES
dc.contributor.author Poves, Ignasi es_ES
dc.contributor.author Grande, Luís es_ES
dc.date.accessioned 2013-06-25T09:32:01Z
dc.date.issued 2011-06
dc.identifier.issn 0361-803X
dc.identifier.uri http://hdl.handle.net/10251/30076
dc.description.abstract OBJECTIVE. Our aim was to evaluate the capability of a Cool-tip electrode to create larger coagulation volumes combined with a low-flow (0.1 mL/min) perfusion of hypertonic saline at a distance of 2 mm (hybrid applicator) without reducing either predictability or sphericity of the coagulation zone. MATERIALS AND METHODS. A total of 48 radiofrequency ablations were performed on a total of 12 adult pigs: 24 with the Cool-tip (group 1) and 24 with the hybrid applicator (group 2). Volumes and diameters were assessed both macroscopically and with imaging techniques (ultrasound and MRI). Digital reconstruction techniques were also used. Reproducibility of the coagulations was assessed by means of the coefficient of variation. RESULTS. The macroscopic assessment showed a significantly larger coagulation zone in group 2 than in group 1, both with (19.40 ± 11.38 cm3 vs 9.16 ± 5.62 cm3; p < 0.001) and without (19.54 ± 11.39 cm3 vs 9.21 ± 5.74 cm3; p < 0.001) digital reconstruction. Differences were also significant in the MRI assessment. The minimum transverse diameter was also significantly (p < 0.01) larger in group 2 than group 1: 2.46 ± 0.61 versus 1.86 ± 0.55 cm for macroscopic assessment, 2.33 ± 0.96 versus 1.69 ± 0.53 cm for ultrasound, and 2.41 ± 0.58 versus 1.8 ± 0.52 cm for MRI. The coefficient of variation was similar in both groups. CONCLUSION. The results suggest that low-flow perfusion of hypertonic saline at 2 mm from a Cool-tip electrode could increase coagulation zone volume without reducing predictability. 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 number TEC2008-01369/TEC. The translation of this article was funded by the Universidad Politecnica de Valencia, Spain. en_EN
dc.language Inglés es_ES
dc.publisher American Roentgen Ray Society (ARRS) es_ES
dc.relation.ispartof American Journal of Roentgenology es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Coagulation volume es_ES
dc.subject Liver es_ES
dc.subject Perfusion electrode es_ES
dc.subject radiofrequency ablation es_ES
dc.subject.classification TECNOLOGIA ELECTRONICA es_ES
dc.title Distant infusion of saline may enlarge coagulation volume during radiofrequency ablation of liver tissue using cool-tip electrodes without impairing predictability es_ES
dc.type Artículo es_ES
dc.embargo.lift 10000-01-01
dc.embargo.terms forever es_ES
dc.identifier.doi 10.2214/AJR.10.5202
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./
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Electrónica - Departament d'Enginyeria Electrònica es_ES
dc.description.bibliographicCitation Burdío, F.; Tobajas, P.; Quesada-Diez, R.; Berjano, E.; Navarro, A.; Poves, I.; Grande, L. (2011). Distant infusion of saline may enlarge coagulation volume during radiofrequency ablation of liver tissue using cool-tip electrodes without impairing predictability. American Journal of Roentgenology. 196(6):837-843. https://doi.org/10.2214/AJR.10.5202 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://www.ajronline.org/doi/pdf/10.2214/AJR.10.5202 es_ES
dc.description.upvformatpinicio 837 es_ES
dc.description.upvformatpfin 843 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 196 es_ES
dc.description.issue 6 es_ES
dc.relation.senia 214125
dc.contributor.funder Ministerio de Ciencia e Innovación
dc.contributor.funder Universitat Politècnica de València es_ES


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