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  4. Fast estimation of the vascular cooling in RFA based on numerical simulation
 
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2010
Journal Article
Title

Fast estimation of the vascular cooling in RFA based on numerical simulation

Abstract
We present a novel technique to predict the outcome of an RF ablation, including the vascular cooling effect. The main idea is to separate the problem into a patient independent part, which has to be performed only once for every applicator model and generator setting, and a patient dependent part, which can be performed very fast. The patient independent part fills a look-up table of the cooling effects of blood vessels, depending on the vessel radius and the distance of the RF applicator from the vessel, using a numerical simulation of the ablation process. The patient dependent part, on the other hand, only consists of a number of table look-up processes. The paper presents this main idea, along with the required steps for its implementation. First results of the computation and the related ex-vivo evaluation are presented and discussed. The paper concludes with future extensions and improvements of the approach.
Author(s)
Kröger, T.
Pätz, T.
Altrogge, I.
Schenk, A.
Lehmann, K.S.
Frericks, B.B.
Ritz, J.-P.
Peitgen, H.-O.
Preusser, T.
Journal
Open Biomedical Engineering Journal  
Language
English
Fraunhofer-Institut für Digitale Medizin MEVIS  
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