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BackgroundThyroid nodules are a common thyroid disorder. The aim of the present study was to observe the application value of ultrasonic shear wave elastography (SWE) and contrast-enhanced ultrasound (CEUS) in the differential diagnosis of patients with benign and malignant thyroid lesions.MethodsEighty-two patients with thyroid nodules (96 thyroid nodules) at our hospital were enrolled. All patients underwent ultrasonic SWE and CEUS examination. With surgical pathology as the gold standard, the Young's modulus, CEUS imaging features, and quantitative parameters were compared between the benign and malignant groups. The diagnostic efficiency of SWE, CEUS, and their combination was analyzed by receiver-operating characteristic curve (ROC).ResultsThe average of the Young's modulus in the malignant group was significantly higher than that of the benign group (P<0.05). There were significant differences in the CEUS images of nodules between the benign and malignant groups in terms of boundary conditions, morphology, perfusion intensity, homogeneous enhancement, and perfusion defects (P<0.05), while there were no significant difference in initial increase time, peak intensity, time to peak, and area under the curve (P>0.05). The curve sharpness in the benign group was significantly lower than that of the malignant group (P<0.05). ROC analysis found that the diagnostic sensitivity and specificity of SWE, CEUS, and their combination were 90.1% and 81.6%, 67.8% and 75.4%, and 97.3% and 71.5%, respectively.ConclusionsCompared with CEUS, the sensitivity and specificity of SWE were relatively higher in the differential diagnosis of benign and malignant thyroid lesions, and a combination of both can improve the diagnostic sensitivity of SWE alone to a certain extent.

gland surgery

Application of ultrasonic shear wave elastography and contrast-enhanced ultrasound in the differential diagnosis of patients with benign and malignant thyroid lesions