Analytical Model Based on a Cylindrical Geometry to Study RF Ablation with Needle-Like Internally Cooled Electrode
Figure 1
(a) Cluster of three internally cooled needle-like electrodes used to ablate biological tissues by means of RF currents. (b) Analytical model representing a simplified scenario of an ideal conductor with infinite length totally immersed in homogeneous tissue. The internal cooling was modeled by means of a Dirichlet’s thermal boundary condition with a constant temperature which corresponds with the coolant temperature inside the electrode. Accordingly, the theoretical model has one dimension (1D), that is, axis .
