Towards a verified simulation model for radiofrequency ablations

Authors:
Andreas Weihusen;Lisa Hinrichsen;Thomas Carus;Rainer Dammer;Richard Rascher-Friesenhausen;Tim Kröger;Heinz-Otto Peitgen;Tobias Preusser
Affiliations:
Fraunhofer MEVIS, Bremen, Germany;Bremerhaven University of Applied Sciences, Germany;Cuxhaven Hospital, Germany;Bremerhaven University of Applied Sciences, Germany;Fraunhofer MEVIS, Bremen, Germany and Bremerhaven University of Applied Sciences, Germany;Fraunhofer MEVIS, Bremen, Germany;Fraunhofer MEVIS, Bremen, Germany;Fraunhofer MEVIS, Bremen, Germany
Venue:
IPCAI'10 Proceedings of the First international conference on Information processing in computer-assisted interventions
Year:
2010

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Abstract

The simulation of radiofrequency ablations (RFA) can predict the achievable coagulation area and thus provide useful information for treatment planning, especially in cases in which the heat distribution can be limited by vascular cooling effects. A strong reliability of the numerical simulation results is essential for clinical use In this paper, we present a novel experimental procedure for the verification of RFA simulation systems in a lifelike environment without requiring animal tests. RF ablations are performed within isolated, perfused porcine livers, the corresponding configurations are reconstructed and simulated on a computer, and the resulting pathoanatomical coagulations are compared to their simulated counterparts with consideration of vascular cooling effects. We have applied this procedure for an initial verification of an existing RFA simulation system. The results are presented and discussed in this paper.