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Could it be advantageous to tune the temperature controller during radiofrequency ablation? A feasibility study using theoretical models

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Could it be advantageous to tune the temperature controller during radiofrequency ablation? A feasibility study using theoretical models

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dc.contributor.author Alba Martínez, José es_ES
dc.contributor.author Trujillo Guillen, Macarena es_ES
dc.contributor.author Blasco Giménez, Ramón Manuel es_ES
dc.contributor.author Berjano Zanón, Enrique es_ES
dc.date.accessioned 2014-10-06T12:43:19Z
dc.date.available 2014-10-06T12:43:19Z
dc.date.issued 2011-09
dc.identifier.issn 0265-6736
dc.identifier.uri http://hdl.handle.net/10251/40665
dc.description.abstract Purpose: To assess whether tailoring the Kp and Ki values of a proportional-integral (PI) controller during radiofrequency (RF) cardiac ablation could be advantageous from the point of view of the dynamic behaviour of the controller, in particular, whether control action could be speeded up and larger lesions obtained. Methods: Theoretical models were built and solved by the finite element method. RF cardiac ablations were simulated with temperature controlled at 55 degrees C. Specific PI controllers were implemented with Kp and Ki parameters adapted to cases with different tissue values (specific heat, thermal conductivity and electrical conductivity) electrode-tissue contact characteristics (insertion depth, cooling effect of circulating blood) and electrode characteristics (size, location and arrangement of the temperature sensor in the electrode). Results: The lesion dimensions and T(max) remained almost unchanged when the specific PI controller was used instead of one tuned for the standard case: T(max) varied less than 1.9 degrees C, lesion width less than 0.2 mm, and lesion depth less than 0.3 mm. As expected, we did observe a direct logical relationship between the response time of each controller and the transient value of electrode temperature. Conclusion: The results suggest that a PI controller designed for a standard case (such as that described in this study), could offer benefits under different tissue conditions, electrode-tissue contact, and electrode characteristics. 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 and FEDER Project MTM2010-14909. The translation of this paper was funded by the Universitat Politecnica de Valencia, Spain. The authors alone are responsible for the content and writing of the paper en_EN
dc.language Inglés es_ES
dc.publisher Informa Healthcare es_ES
dc.relation.ispartof International Journal of Hyperthermia es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Ablation es_ES
dc.subject Cardiac ablation es_ES
dc.subject Closed loop control es_ES
dc.subject Finite element method es_ES
dc.subject Radiofrequency ablation es_ES
dc.subject Temperature controlled ablation es_ES
dc.subject Theoretical model es_ES
dc.subject.classification INGENIERIA DE SISTEMAS Y AUTOMATICA es_ES
dc.subject.classification MATEMATICA APLICADA es_ES
dc.subject.classification TECNOLOGIA ELECTRONICA es_ES
dc.title Could it be advantageous to tune the temperature controller during radiofrequency ablation? A feasibility study using theoretical models es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.3109/02656736.2011.586665
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.relation.projectID info:eu-repo/grantAgreement/MICINN//MTM2010-14909/ES/HIPERCICLICIDAD Y CAOS DE OPERADORES/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario de Automática e Informática Industrial - Institut Universitari d'Automàtica i Informàtica Industrial 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. Departamento de Matemática Aplicada - Departament de Matemàtica Aplicada es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería de Sistemas y Automática - Departament d'Enginyeria de Sistemes i Automàtica es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Electrónica - Departament d'Enginyeria Electrònica es_ES
dc.description.bibliographicCitation Alba Martínez, J.; Trujillo Guillen, M.; Blasco Giménez, RM.; Berjano Zanón, E. (2011). Could it be advantageous to tune the temperature controller during radiofrequency ablation? A feasibility study using theoretical models. International Journal of Hyperthermia. 27(6):539-548. https://doi.org/10.3109/02656736.2011.586665 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.3109/02656736.2011.586665 es_ES
dc.description.upvformatpinicio 539 es_ES
dc.description.upvformatpfin 548 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 27 es_ES
dc.description.issue 6 es_ES
dc.relation.senia 210642
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