Radiofrequency ablation of liver metastases from colorectal cancer

Objective: To assess the effectiveness of radiofrequency ablation (RFA) of liver metastases from colorectal cancer (CRC). Methods: 92 patients with 148 lesions (age 31–81, tumor size 0.5–11.0cm) were treated with monopolar RFA with perfused applicators and 29 patients with 53 metastases (age 40–80, size 2.0–11.5cm) were treated with multipolar RFA using 3 bipolar internally-cooled applicators. The effectiveness was assessed with contrast-enhanced ultrasound, CT, and cytological examination. Patients were followed up for 1–39 months (mean 14). Results: With monopolar RFA complete destruction was achieved in 87.9%…