2017 American Radiology of Society thyroid imaging report and data system classification in differentiating benign and malignant thyroid nodules / 中国介入影像与治疗学

ABSTRACT

Objective: To explore the value of thyroid imaging report and data system (TI-RADS) recommended by American Radiology of Society (ACR) in 2017 for differentiating thyroid benign and malignant nodules. Methods: Ultrasonic images of 497 thyroid nodules diagnosed with pathology were retrospectively analyzed using TI-RADS classification and given score and classification. The optimal critical score was determined with ROC curve, and the sensitivity, specificity and accuracy were calculated. The efficacy and consistency of senior and junior physicians in diagnosis of benign and malignant thyroid nodules using this optimal critical score were evaluated. Results: The area under ROC curve was 0.883 (P<0.001), and the optimal critical score was 5, while the sensitivity and specificity was 86.22% and 78.68%, respectively. The sensitivity, specificity and accuracy of senior physicians in diagnosis of benign and malignant thyroid nodules was 78.22% (176/225), 76.47% (208/272) and 77.26% (384/497), of junior physicians was 77.33% (174/225), 74.26%(202/272) and 75.65% (376/497), respectively, and moderate consistency was found between senior and junior physicians (Kappa=0.581). Conclusion: TI-RADS recommended by ACR in 2017 has high clinical value, and the optimal critical score for diagnosing benign and malignant thyroid nodule is 5.