Feasibility of a Low-Power Radiofrequency Ablation Protocol to Delay Steam Popping.

Purpose: Steam popping frequently occurs during conventional high-power radiofrequency (RF) ablation, increasing the risk of tumor spread. The aim of this study was to evaluate the effect of a low-power RF ablation protocol on the intensity and timing of steam popping in ex vivo bovine liver.

Materials And Methods: High-power (maximum 200 W; group 1) and low-power (maximum 70 W; group 2) RF ablation protocols were established.