Table 2. Suggested electrode selection according to lesion size

Lesion size (cm)	Active tip length (cm)	Suggested RF power (W)*	Comment
Very small or high-risk lesions	0.38	5–15	Useful for recurrent tumors or lesions adjacent to critical structures
<2	0.5	10–30	Commonly used for small nodules or high-risk locations
2–3	0.7	20–40	Adjust according to nodule location and patient tolerance
3–4	1.0	30–80	Commonly used for medium-sized nodules
>4	1.5	50–90	Used cautiously when the nodule is close to critical structures

Suggested RF power should be adjusted according to active tip size, nodule characteristics, proximity to critical structures, patient tolerance, and operator experience.
RF: radiofrequency.