Ex situ quantification of the cooling effect of liver vessels on radiofrequency ablation

Lehmann, Kai S.; Frericks, Bernd; Valdeig, S.; Knappe, Verena; Schenk, Andrea; Holmer, Christoph; Zurbuchen, Urte; Peitgen, Heinz O.; Buhr, H. J.; Ritz, J.‐P.

doi:10.1016/j.jamcollsurg.2009.06.044

Cited by 9 publications

(23 citation statements)

References 16 publications

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“…Additionally, the results give rise to the conclusion that the blood flow rate has essentially no influence on the ablation result [27]. This implies that the blood is not heated up considerably, i. e. the Dirichlet boundary condition for the temperature (4c) is justified.…”

Section: Ex-vivo Resultsmentioning

confidence: 75%

“…Another point is that the ex-vivo results do not show a significant dependence on the vessel radius [27]. The computational results clearly indicate such a dependence.…”

Section: Ex-vivo Resultsmentioning

confidence: 76%

“…Three example results are shown in Figs. (10-12); note again that the clinically relevant part of the ex-vivo study is published separately [27].…”

Section: Ex-vivo Resultsmentioning

confidence: 99%

“…Additional ex-vivo experiments were performed to verify that the glass did not influence the necrosis: We compared experiments with disabled pump to those without any glass tube, not obtaining visual differences [27].…”

Section: Ex-vivo Resultsmentioning

confidence: 99%

“…The clinically relevant part of the evaluation is published separately [27]; we focus here on the aspects that are essential in connection with the current publication.…”

Section: Ex-vivo Experimentsmentioning

confidence: 99%

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Fast Estimation of the Vascular Cooling in RFA Based on Numerical Simulation

Kröger¹,

Pätz²,

Altrogge³

et al. 2010

TOBEJ

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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.

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Section: Ex-vivo Resultsmentioning

confidence: 75%

“…Another point is that the ex-vivo results do not show a significant dependence on the vessel radius [27]. The computational results clearly indicate such a dependence.…”

Section: Ex-vivo Resultsmentioning

confidence: 76%

“…Three example results are shown in Figs. (10-12); note again that the clinically relevant part of the ex-vivo study is published separately [27].…”

Section: Ex-vivo Resultsmentioning

confidence: 99%

Section: Ex-vivo Resultsmentioning

confidence: 99%

“…The clinically relevant part of the evaluation is published separately [27]; we focus here on the aspects that are essential in connection with the current publication.…”

Section: Ex-vivo Experimentsmentioning

confidence: 99%

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