Factors influencing complete tumor destruction, local tumor progression and survival after radiofrequency ablation of metastatic liver tumors

Aim: To research on the factors influencing complete tumor destruction (CD), local tumor progression (LTP), and survival after US-guided percutaneous radiofrequency ablation (RFA) in patients with liver metastases. Patients and methods: 133 patients with 276 metastases were treated using monopolar RFA with perfused applicators, 36 patients with 65 metastases were treated with multipolar RFA using 3 bipolar applicators, and 8 patients with 11 metastases were treated with expandable multitined perfused RFA, in a 6-year period. The origin was colorectal cancer (211 lesions), breast cancer (45 lesions), esophageal,…