Buscar en RiuNet

Listar

Todo RiuNet

Mi cuenta

Acceder

Ayuda RiuNet

Admin. UPV

Listar por autor "Rivera Ortun, María José"

Mostrando ítems 1-7 de 7

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

López Molina, Juan Antonio; Rivera Ortun, María José; Berjano Zanón, Enrique (Hindawi Publishing Corporation, 2012)

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 ...
Analytical transient-time solution for temperature in non perfused tissue during radiofrequency ablation

López Molina, Juan Antonio; Rivera Ortun, María José; Berjano Zanón, Enrique (Elsevier, 2016-10-26)

[EN] Radiofrequency ablation (RFA) with internally cooled needle-like electrodes is a technique widely used to destroy cancer cells. In a previous study we obtained the analytical solution of the biological heat equation ...
Computer modeling of an impedance-controlled pulsing protocol for RF tumor ablation with a cooled electrode

Trujillo Guillen, Macarena; Bon Corbín, José; Rivera Ortun, María José; Burdio, Fernando; Berjano, Enrique (Taylor & Francis, 2016)

[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 ...
Electrical-thermal analytical modeling of monopolar RF thermal ablation of biological tissues: determining the circumstances under which tissue temperature reaches a steady state

López Molina, Juan Antonio; Rivera Ortun, María José; Berjano, Enrique (American Institute of Mathematical Sciences (AIMS), 2016-04)

[EN] It has been suggested that during RF thermal ablation of biological tissue the thermal lesion could reach an equilibrium size after 1-2 minutes. Our objective was to determine under which circumstances of electrode ...
Fourier, hyperbolic and relativistic heat transfer equations: a comparative analytical study

López Molina, Juan Antonio; Rivera Ortun, María José; Berjano, Enrique (Royal Society, The, 2014-10-08)

[EN] Parabolic heat equation based on Fourier's theory (FHE), and hyperbolic heat equation (HHE), has been used to mathematically model the temperature distributions of biological tissue during thermal ablation. However, ...
Numerical resolution of the hyperbolic heat equation using smoothed mathematical functions instead of Heaviside and Dirac delta distributions

Rivera Ortun, María José; Trujillo Guillen, Macarena; Romero García, Vicente; López Molina, Juan Antonio; Berjano Zanón, Enrique (Elsevier, 2013-08)

The hyperbolic bioheat equation (HBE) has been used to model heating applications involving very short power pulses. This equation includes two mathematical distributions (Heaviside and Delta) which have to be necessarily ...
The function of Green for the bioheat equation of Pennes in an axisymmetric unbounded domain

Rivera Ortun, María José (AD Publications, 2016)

[EN] The function of Green associated to a linear partial differential operator P(D) in a domain ¿ acting at point x0 of the domain, is a distribution G(x,x0) such that P(D)G(x,x0) = ¿(x¿x0), where ¿is the Dirac¿s delta ...