Rawnoc---One study only----"RF ablation is increasingly used as minimally invasive therapy for treating liver
tumors, both primary hepatocellular
tumors and hepatic metastases ( 2 ). RF
ablation is highly effective for tumors
less than 3 cm in diameter but is less
effective for large tumors. Multiple
RF electrodes are typically required to
treat large tumors. In one study ( 3 ) of
121 tumors between 3 and 7 cm in diameter,
536 ablations were performed
and the local recurrence rate was 24%.
For even larger tumors, the recurrence
rate will likely be much higher."