Diagnostic Value of Real-Time Tissue Elastography Combined with Shear Wave Velocity Measurement in Focal Liver Lesions Using Abdominal Ultrasound
Objective To analyze the diagnostic value of real-time tissue elastography combined with shear wave velocity measurement in focal liver lesions using abdominal ultrasound.Methods Ninety patients with focal liver lesions treated at Zhengzhou Yihe Hospital from March 2019 to March 2021 were selected as study subjects.All patients underwent real-time tissue elastography and shear wave velocity measurement using abdominal ultrasound.Postoperative pathological results were used as the gold standard to compare the diagnostic value of real-time tissue elastography combined with shear wave velocity measurement in differentiating the nature of focal liver lesions.Receiver operating characteristic(ROC)curves were plotted to analyze the diagnostic value of real-time tissue elastography,shear wave velocity measurement,and their combination in differentiating the nature of focal liver lesions.Results Based on postoperative pathological diagnosis,53 out of 90 patients(58.89%)had malignant tumors,including 35 cases(66.04%)of hepatocellular carcinoma,10 cases(18.87%)of liver metastases,and 8 cases(15.09%)of cholangiocarcinoma.Thirty-seven patients(41.11%)had benign tumors,including 12 cases(32.43%)of cirrhotic nodules,17 cases(45.94%)of hemangiomas,4 cases(10.81%)of adenomas,and 4 cases(10.81%)of inflammatory nodules.The consistency of real-time tissue elastography,shear wave velocity measurement,and their combination with the gold standard were 0.402,0.586,and 0.767,respectively.There was no statistically significant difference in specificity among the three diagnostic methods(P＞0.05).The accuracy and sensitivity of the combined diagnosis were the highest,with statistically significant differences(P＜0.05).The ROC curve showed that the area under the curve(AUC)for real-time tissue elastography,shear wave velocity measurement,and their combination in diagnosing focal liver lesions were 0.709(95%CI:0.599～0.818),0.809(95%CI:0.716～0.901),and 0.877(95%CI:0.794～0.960),respectively.Conclusion Real-time tissue elastography and shear wave velocity measurement using abdominal ultrasound can effectively differentiate the nature of focal liver lesions.However,the combined detection method can improve diagnostic efficiency and is worthy of application.
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