Diagnostic value of texture features of liver ultrasound images for high-risk esophageal and gastric varices in patients with cirrhosis
Objective To evaluate the diagnostic value of texture features of liver ultrasound images for high-risk esophageal and gastric varices in patients with cirrhosis.Methods The clinical data of 102 patients with compensatory cirrhosis admitted in our hospital from January 2019 to December 2022 were retrospectively analyzed.According to the clinical stage of portal hypertension,the patients were divided into high-risk group(n=36)and low-risk group(n=66).The texture features of liver ultrasound images were extracted by radiomics method,and the texture score was calculated after screening meaningful features.Receiver operating characteristic(ROC)curve analysis was performed on the texture score,and the area under the curve(AUC)was calculated.The Youden equation was used to determine the optimal cut-off value of the texture score,and the diagnostic sensitivity and specificity were calculated.Results The proportion of males,aspartate aminotransferase level,international normalization ratio(INR)and texture feature score in the high-risk group were higher than those in the low-risk group,and the differences were statistically significant(P<0.05).A total of 5 meaningful texture features were selected to calculate the texture score.The AUC of texture score in the diagnosis of high-risk esophageal and gastric varices was 0.92,and the 95%CI was 0.85-0.96.The Youden index was 0.65,and the corresponding optimal cut-off value was-0.01.The diagnostic sensitivity and specificity were 80.56%and 84.85%,respectively.Conclusion The texture features of liver ultrasound images have good diagnostic value for high-risk esophageal and gastric varices in patients with cirrhosis.
liver ultrasound imagestexture featurescirrhosisesophageal and gastric varices
万方数据
维普
