Feasibility of 3.0T closed MR-guided microwave ablation for liver metastases / 中国介入影像与治疗学

ABSTRACT

Objective: To explore the feasibility of 3.0T closed MR-guided microwave ablation for liver metastases. Methods: Totally 14 patients with 23 liver metastases were treated with 3.0T closed MR-guided microwave ablation. The technical success rate, ablation parameters, procedures time and complications were recorded, and the local ablation effects were evaluated 1 month later. Results: The technical success rate was 100%. The ablation power was (65.65±4.11)W, the ablation time of single lesion was (13.92±6.36)min, and the total operation time was (68.48±19.50)min. No severe complication such as liver abscess, diaphragmatic perforation nor jaundice occurred, while small amount of pleural effusion was obserevd in 2 cases (2/14, 14.29%). One month later, the complete ablation rate was 91.30% (21/23). Conclusion: 3.0T closed MR-guided microwave ablation is safe and effective for treating liver metastases.