Hepatic metastases: percutaneous radio-frequency ablation with cooled-tip electrodes.

• DOI: 10.1148/radiology.205.2.9356616
• Publication Date: 2014-07-08T16:27:40Z
• Authors: L Solbiati; S N Goldberg; T Ierace; T Livraghi; F Meloni; M Dellanoce; S Sironi; G S Gazelle
• Keywords: Coagulative necrosis

To assess the feasibility and safety of using cooled-tip electrodes to increase volume coagulation necrosis obtained or reduce number treatment sessions necessary with percutaneous tumor radio-frequency (RF) ablation.Twenty-nine patients 44 hepatic metastases (1.3-5.1 cm diameter) from colorectal (n = 22), gastric 5), pancreatic 1), breast 1) carcinoma were treated RF ablation cooled-tip, 18-gauge 2-3 tip exposure. Each was in one two sessions.Technical success, all visualized tumor, achieved 40 (91%) metastases. Findings at computed tomography (CT) magnetic resonance (MR) imaging performed 3-6 months after confirmed complete entire metastasis 66%. Disease-free survival 50% 12 33% 18 months, localized progression disease 34% lesions. Overall 100%, 94%, 89% 6, 12, respectively. Only complication, self-limited hemorrhage, seen.Use a safe feasible adjunct for therapy that produced larger volumes fewer electrode insertions than is other techniques.