ObjectiveTo explore the value of two methods of sound touch elastography（STE）in diagnosing liver fibrosis in patients with chronic hepatitis B（CHB）.MethodsA total of 122 patients with CHB were selected in our hospital.All patients were successfully examined by STE.The mean and median values of Young’s modulus were obtained

and the correlation coefficients between the mean

median values and pathological stages were calculated.The diagnostic efficacy of the two methods for liver fibrosis was analyzed by receiver operator characteristic（ROC）curve

and the area under ROC curve was compared.ResultsThe Young’s modulus values of the two methods were significant differences among the pathological staging groups（F=36.894

28.667

both P<0.001）. The mean and median values of the two methods were positively correlated with pathological stages（r=0.641

0.598

both P<0.001）.The area under ROC curve of mean values for diagnosing liver fibrosis ≥S2 stage and S4 stage was slightly higher than those of the median values

but there was no significant difference between the two groups.The area under ROC curve of mean values for diagnosing liver fibrosis ≥S3 stage was higher than that of median values

and the difference was statistically significant（P<0.05）.ConclusionSTE has better diagnostic efficacy in evaluation of liver fibrosis in patients with CHB.It is more valuable to choose the mean value of the Young’s modulus as the parameter than the median value.