Table 1 Clinical characteristics of the patients and HCC lesions

Gender (M/F)

91/7

Age (mean, range, years)

53.7 ± 10.5 (29 ~ 75)

Viral hepatitis/alcoholic liver disease

97/1

Liver cirrhosis (yes/no)

82/16

Child-Pugh class (A/B)

89/9

AFP (ng/ml) (<20/≥20)

65/33

History of HCC (yes/no)

50/48

Tumor number (1/>1)

75/23

Tumor diameter (mean, range, mm)

19.6 ± 7.7 (10 ~ 52)

Tumor diameter distribution (mm) (10–19/20–29/30–39/40–49/≥50)

69/40/15/1/1

RFA plus TACE (yes/no)

41/85