[EN] Purpose To characterize the coagulation zones created by two radiofrequency (RF)-based hemostatic devices: one comprised an internally cooled monopolar electrode and the other comprised externally irrigated bipolar ...
[EN] Purpose: (1) To analyse rehydration, thermal convection and increased electrical conductivity as the three phenomena which distinguish the performance of internally cooled electrodes (IC) and internally cooled wet ...
González-Suárez, Ana; Berjano, Enrique; Guerra, Jose M.; Gerardo-Giorda, Luca(Public Library of Science, 2016-03-03)
[EN] Radiofrequency catheter ablation (RFCA) is a routine treatment for cardiac arrhythmias. During RFCA, the electrode-tissue interface temperature should be kept below 80°C to avoid thrombus formation. Open-irrigated ...
González Suárez, Ana(Universitat Politècnica de València, 2014-03-14)
Las técnicas ablativas basadas en energía por radiofrecuencia (RF) se
emplean con el fin de lograr un calentamiento seguro y localizado en el tejido
biológico. En los últimos años ha habido un rápido crecimiento en el ...
Arenas Puig, Francisco Javier; Pérez Martínez, Juan José; Trujillo Guillen, Macarena; Berjano Zanón, Enrique(BioMed Central, 2014-12-12)
Background
Externally irrigated radiofrequency (RF) electrodes have been widely used to thermally ablate tumors in surface tissue and to thermally coagulate the transection plane during a surgical resection. As far as ...
Ewertowska, Elzbieta(Universitat Politècnica de València, 2020-01-07)
[ES] La ablación por radiofrecuencia (RF) se ha convertido en una técnica ablativa importante, ampliamente utilizada en el área de las terapias mínimamente invasivas de la medicina moderna. El avance en el campo de las ...
[EN] Background and Objectives Radiofrequency (RF)-induced ablation can be carried out inside ducts and vessels by simultaneously dragging a bipolar catheter while applying RF power. Our objective was to characterize the ...
[EN] Purpose: To develop computer models to mimic the impedance-controlled pulsing protocol implemented in radiofrequency (RF) generators used for clinical practice of radiofrequency ablation (RFA), and to assess the ...
Pérez, Juan J; Perez-Cajaraville, Juan J.; Muñoz, Victor; Berjano, Enrique(American Association of Physicists in Medicine: Medical Physics, 2014-07)
Purpose: Pulsed RF (PRF) is a nonablative technique for treating neuropathic pain. Bipolar PRF application is currently aimed at creating a "strip lesion" to connect the electrode tips; however, the electrical and thermal ...
[EN] Background: The state of the art in computer modeling of radiofrequency catheter ablation (RFCA) only considers a static situation, i.e. it ignores ablation electrode displacements induced by tissue movement due to ...
González-Suárez, Ana; Pérez, Juan J; Irastorza, Ramiro M.; D Avila, Andre; Berjano, Enrique(Elsevier, 2022-02)
[EN] This review begins with a rationale of the importance of theoretical, mathematical and computational models for radiofrequency (RF) catheter ablation (RFCA). We then describe the historical context in which each model ...
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 ...
[EN] Background and objectives: To study temperature distribution and lesion size during two repeated radiofrequency (RF) pulses applied at the same point in the context of RF cardiac ablation (RFCA). Methods: An in-silico ...
Cedeño Vinces, Adair Enrique(Universitat Politècnica de València, 2023-09-04)
[ES] El TFG consiste en el diseño y fabricación de una maqueta de un invernadero el cual dispondrá de sensores de humedad, temperatura y luz, y actuadores de humedad, ventilación, iluminación artificial y control de riego ...
[EN] A great deal of current research is directed to finding a way to minimize thermal injury in the esophagus during radiofrequency catheter ablation of the atrium. A recent clinical study employing a cooling intraesophageal ...
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 ...
González Suárez, Ana; Trujillo Guillen, Macarena; Burdío, Fernando; Andaluz, Anna; Berjano, Enrique(American Association of Physicists in Medicine: Medical Physics, 2014-08)
Purpose: To assess by means of computer simulations whether the heat sink effect inside a large vessel (portal vein) could protect the vessel wall from thermal damage close to an internally cooled electrode during ...
Pascual Hernández, José María(Universitat Politècnica de València, 2016-02-26)
Este Proyecto Final de Carrera ha sido realizado por el alumno José María Pascual Hernández para obtener el título de Ingeniería Técnica de Diseño especialidad en Mecánica. Se ha llevado a cabo a petición del departamento ...
Burdio, Fernando; Berjano, Enrique; Milian, Olga; Grande, Luis; Poves, Ignasi; Silva, Claudio; De la Fuente, Maria Dolors; Mojal, Sergi(Elsevier, 2013)
[EN] Purpose: To track the saline during infusion with a 15 G needle into healthy pig livers at high and low infusion rates for 300 s.
Methods: In each experiment, the needle was inserted into a single lobe of the liver ...