Endoscopic ultrasound-guided radiofrequency ablation of porcine liver

Animal studies of endoscopic ultrasound-guided radiofrequency ablation (EUS-RFA) of the liver have rarely been reported. We assessed the effectiveness and safety of EUS-RFA in pigs. We conducted four experiments using newly designed RFA electrodes. In the first experiment, we ablated excised liver using 19 G electrodes with active electrode tips with lengths of 1, 1.5, and 2 cm. The second experiment was performed with the same electrodes as...