2D Shear Wave Elastography Increases Diagnostic Accuracy of the TIRADS-ACR and ATA Classification System in Thyroid Nodule Selection: Cyto- and Histological Correlation.

Purpose: The aim was to evaluate whether elastography changes the accuracy of thyroid nodule malignancy risk classification by TI-RADS ACR and ATA systems.

Materials And Methods: This was a prospective study with 191 nodules (180 patients). Nodule assessments by B-mode ultrasonography (US) and two-dimensional shear wave elastography (2D-SWE) were compared with a) fine-needle aspiration biopsy cytological (Bethesda II) and post-resection histology results (Bethesda III to VI).