Fig. 2From: CEUS LI-RADS for diagnosis of hepatocellular carcinoma in individuals without LI-RADS-defined hepatocellular carcinoma risk factorsFlow diagram for RF+ and RF− groups. ALT = alanine transaminase; AST = aspartate transaminase; HBV = hepatitis B virus; LI-RADS = Liver Imaging Reporting and Data System; RF− = not high-risk for hepatocellular carcinoma per LI-RADS criteria; RF+ = high-risk for hepatocellular carcinoma per LI-RADS criteria; FIB-4 = Fibrosis 4 ScoreBack to article page