Evaluation of Liver Fibrosis Staging With Acoustic Radiation Force Impulse Elastography

Inclusion Criteria: * Age \> 20 years * chronic liver disease (hepatitis B, hepatitis C, liver cirrhosis) patients who are planned to liver biopsy * Healthy liver and kidney donors * The patients who is willing and able to provide written informed consent to participate in this study Exclusion Criteria: * Decompensated liver cirrhosis * Patients with liver congestion due to heart dysfunction * Patients who previously take antiviral agent and antifibrotic agent * Healthy liver and kidney donors with any laboratory abnormalities regarding liver condition (Platelet count \< 150 x 103/ul, Fasting glucose \> 110 mg/dl, AST \> 40 IU/L, ALT\> 40 IU/L, Albumin \< 3.3 g/dl, Total bilirubin \> 1.2 mg/dl, GGT\> 54 IU/L, ALP \> 115 IU/L , Ferritin \> 322 ng/ml) * A history of any other medical disease or condition that would make the patients unsuitable for this study