Towards optimization of probe placement for radio-frequency ablation.
We present a model for the optimal placement of mono- and bipolar probes in radio-frequency (RF) ablation. The model is based on a numerical computation of the probe's electric potential and of the steady state of the heat distribution during RF ablation. The optimization is performed by minimizing a temperature based objective functional under these constraining equations. The paper discusses the discretization and implementation of the approach. Finally, applications of the optimization to artificial data and a comparison to a real RF ablation are presented.
Altrogge
Inga
I
CeVis-Center for Complex Systems and Visualization, University of Bremen, Germany.
Kröger
Tim
T
Preusser
Tobias
T
Büskens
Christof
C
Pereira
Philippe L
PL
Schmidt
Diethard
D
Weihusen
Andreas
A
Peitgen
Heinz-Otto
HO
D000465:Algorithms; D017115:Catheter Ablation / Q000379:methods*; D003198:Computer Simulation; D006801:Humans; D008954:Models, Biological; D009369:Neoplasms / Q000601:surgery*; D013813:Therapy, Computer-Assisted / Q000379:methods*; D013817:Thermography / Q000379:methods*