The Diagnostic Value of the American College of Radiology Thyroid Imaging
Reporting and Data System Classification and Shear-Wave Elastography for the
Differentiation of Thyroid Nodules.
Bora Makal G(1), Aslan A(2). Author information:
(1)Yuksek Ihtisas University, Faculty of Medicine, Department of General
Surgery, Ankara, Turkey. Electronic address: [Email]
(2)Yuksek Ihtisas University, Faculty of Medicine, Department of Radiology,
Ankara, Turkey.
This study aimed to determine the diagnostic accuracy of the American College of Radiology Thyroid Imaging Reporting and Data System (ACR TI-RADS) classification and shear-wave elastography (SWE) for the diagnosis of benign and malignant thyroid nodules. This retrospective study enrolled 141 patients (18-84 y of age) undergoing thyroidectomy between January 2015 and August 2020. All statistical analysis was based on pathologic results of patients. The cut-off value was found as category 4 for ACR TI-RADS classification and 5 m/s for shear-wave velocity (Vs) by the receiver operator characteristic curve analysis (area under the curve [AUC] = 0.684, p = 0.020 and AUC = 0.715, p = 0.005, respectively). SWE has higher diagnostic accuracy than the ACR TI-RADS classification system and can improve thyroid nodule discrimination in all sizes of the nodules. Also, the diagnostic performance decreases when the nodule diameter increases.
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