Fig. 3.

Comparison of radiofrequency ablation (RFA)-induced coagulation created by applying radiofrequency in consecutive, switching, and dual switching modes and with 3 cm, inter-electrode distance.

A. Transverse cut section of specimen created in consecutive monopolar RFA showed 4.54 × 5.03 sized ablation area. B. Transverse cut section of specimen created in switching monopolar RFA. Long-axis and short-axis diameters of ablative zone were 5.77 cm and 5.29 cm, respectively. C. Transverse cut section of specimen created in dual switching RFA. Long-axis and short-axis diameters of ablative zone were 6.78 cm and 6.55 cm, respectively.