Objective: To analyze the value of ultrasound fibrotouch controlled attenuation parameters in the evaluation of different degrees of fatty liver. Methods: From June 2018 to June 2022

120 patients with different degrees of fatty liver were selected as the test group

and 50 healthy volunteers without fatty liver were randomly selected as the control group. Both groups were tested by fibrotouch and liver biopsy. Construct the receiver operating characteristic (ROC) curve

judge the degree of fatty liver disease through the difference of area under the curve (AUC) and fat attenuation parameters

and calculate the sensitivity and specificity. Multiple linear regression analysis is used to establish the regression equation to understand the factors affecting the controlled attenuation parameters. Results: The controlled attenuation parameters of the control group and patients with mild

moderate and severe fatty liver were (198.52 ± 18.54) dB / m

(234.56 ± 17.62) dB / m

(286.97 ± 23.49) dB / M and (342.82 ± 20.55) dB / m

respectively; The AUC of patients with mild

moderate and severe fatty liver were 0.952

0.976 and 0.982 respectively

and the corresponding diagnostic cutoff points were 225 dB / m

256 dB / M and 291 dB / m respectively. The sensitivity and specificity of diagnosing patients with different degrees of fatty liver were more than 85%. The main factors affecting the controlled attenuation parameters were BMI

degree of steatosis

triglyceride

balloon like change

liver hardness

etc.

which had nothing to do with insulin level

alanine aminotransferase

etc. Conclusion: Different degrees of fatty liver can be evaluated by ultrasound fibrotouch controlled attenuation parameters

with good sensitivity and specificity.