Reliability of Thyroid Imaging Reporting and Data System (TI-RADS), and Ultrasonographic Classification of the American Thyroid Association (ATA) in Differentiating Benign from Malignant Thyroid Nodules

Abstract

Thyroid nodules are a frequent finding on necksonography. Ultrasound is the most commonly used imaging technique for the evaluation of thyroid nodules. Thyroid nodules are vastly prevalent whereas thyroid cancer is a relatively rare entity. Aim of study: The aim of this study is to evaluate the risk stratification system used by the American College of Radiology (ACR) Thyroid Imaging, Reporting and Data System (TI-RADS). Patients and Methods: Across sectional study, the study setting was conducted at Ain Shams University Hospitals, From January 2020 till July 2020 . This study was performed on simple of thyroid nodules , 30 patients were included in this study. Results: In this study, the results were comparable to those reported in other of what explain. It was found that 66.7 % of the malignant nodules had smooth margins and 33.3 % of the malignant nodules had lobulated or irregular nodules. Also, it was found that of the 31 benign nodules included in our study, 20 nodules (64.5%) had smooth margins and 11 nodules (35.5%) had ill defined margins; showing significant increase in benign group than malignant group. In this study, the results to were comparable those reported in other studies, 11.1% of the malignant nodules had no echogenic foci, 11.1% of the malignant nodules had macrocalcifications, 11.1% of the malignant nodules had peripheral calcifications, 66.7 % of the malignant nodules had punctate echogenic foci. Nodules with no echogenic foci had a statistically significant increase in benign group than malignant group Conclusion: The ACR TI-RADS scoring system is a simple and practical method for assessing thyroid nodules and has shown an excellent diagnostic accuracy for the diagnosis of malignant thyroid nodules in the present study.