Department of Radiology;
Nissay Hospital;
6-3-8 Itachibori;
Nishiku;
Osaka 550-0012;
Japan;
Department of Radiology;
Komatsu Hospital;
11-6 Kawakatsucho;
Neyagawa 572-8567;
Japan;
Radiofrequency; ablation; Cone-beam; computed; tomography; Safety; margin; Liver; Neoplasms;