Temperature-dependent Electrode Repositioning for Multiple Overlapping Radiofrequency Ablation in Ex Vivo Porcine Livers

The necrotic diameter proportionally decreases with the temperature in single ablation. Withdrawing the electrode up to 50° or by 3 cm before reablating results in fusion of the two ablation zones versus withdrawal of 4.1 cm, which results in incomplete necrosis in between two ablation zones.