Fig. 3. Serial mean volume reduction on ultrasonography.
Tumor volumes increased immediately after RFA and then gradually decreased. Mean volume reduction rate reached 100% at 36 M of F/U for total tumors (at 24 M of F/U for tumors ≥ 0.5 cm; at 36 M of F/U for tumors < 0.5 cm). Interval between from −220 to −900 were spaced. W = week
