The Evalution Of Therapeutic Effect Of1.5T MR Guided Radiofrequency Ablation For Primary Hepatocellular Carcinoma

Objective To explore the clinical curative effect of1.5T MR guidedradiofrequency ablation for primary hepatocellur carcinoma. Methods Sixty-sixpatients with eighty lesions of primary hepatocellular carcinoma which confirmed byclinical criteria or pathology received1.5T MR guided radiofrequency ablation.Postoperative MR scan was performed. The ablation zone exceeded0.5-1.0cm to themargin of initial tumor was considered successful. Orherwise, supplementary ablationwas performed. One month after RFA, imaging examination and laboratory testingwere performed on the liver; after that, the patients were followed-up every3~4months to evaluate the short-term and long-term efficacy. Results All RFAs weresuccessful. The mean operative time was (82.1±29.7) min. Two lesions appeared localrecurrence. New lesions was observed in16patients. The1-,2-and3-years survivalrates were98.5%、96.6%、89.9%respectively. Conclusion1.5T MR guided RFA ofhepatocellular carcinoma has a certain effect、minimal invasive and less complication.