Radiofrequency ablation for colorectal liver metastases             SONG Chun，ZHANG Rui. Department of Colorectal Surgery, Liaoning Provincial Tumor Hospital，Shenyang110042，China
Corresponding author: SONG Chun，E-mail：songchun1@hotmail.com
Abstract    Recent years, radiofrequency ablation (RFA) has been applied more frequently for the colorectal liver metastases (CRLM). RFA can increase the efficacy of unresectable CRLM separately or in combination with other therapies, especially for <3 cm metastases. RFA improves the overall efficacy of unresectable CRLM, but large random samples of Cochrane evidence are needed. The efficacy of RFA depends on the improvement of technologies and the accumulation of medical experience.