Explore the diagnostic performance of 2020 Chinese Thyroid Imaging Reporting and Data Systems by comparing with the 2017 ACR-TIRADS guidelines: a single-center study

摘要

Abstract Objective To compare the diagnostic efficacy of the Chinese Thyroid Imaging Reporting and Data Systems (C-TIRADS) with the well-accepted ACR-TIRADS guidelines in identifying benign from malignant thyroid nodules.Methods A total of 2064 nodules were collected from 1627 patients undergoing thyroid ultrasonography in our center between October 2019 and November 2021. Nodules were divided into two groups: “≥1?cm” and “<1?cm”. Ultrasound features of each nodule were observed and recorded by two physicians with more than 15 years of experience and classified according to the ACR-TIRADS and C-TIRADS guidelines, respectively.Results The area under the curve of the ACR-TIRADS guideline was higher than that of the C-TIRADS guideline (0.922, P?=?0.017), the specificity and positive predictive value of the C-TIRADS guideline were higher (81.64, 88.72, all P?