Comparison of diagnostic performance of the ACR and Kwak TIRADS applying the ACR TIRADS ’ size thresholds for FNA

ConclusionThe modified Kwak TIRADS incorporating the size thresholds of the ACR TIRADS showed higher diagnostic performance and a lower unnecessary FNA rate than the original point-scale based TIRADS.Key Points• Of the original guidelines, the ACR TIRADS had the highest specificity, accuracy, and area under the receiver operating characteristic curve (AUC) (63.1%, 68.9%, and 0.748, respectively).• When the size threshold of the ACR TIRADS was applied to the Kwak TIRADS, the resultant modified version of Kwak TIRADS had higher specificity, accuracy, and AUC (64.7%, 70.3%, and 0.765, respectively) than the ACR TIRADS.• The false-negative rate of the Kwak TIRADS was the lowest (1.9%) among all TIRADS.
Source: European Radiology - Category: Radiology Source Type: research