Table 5 Diagnostic performances of ACR score, ACR TI-RADS and Kwak TI-RADS in the diagnosis of benign and malignant nodules
Tools | AUC area(95%CI) | Cutoff | Sensitivity (95%CI) | Specificity (95%CI) | PPV (95%CI) | NPV (95%CI) | Z | P |
|---|---|---|---|---|---|---|---|---|
ACR score | 0.914 (0.886–0.937) | > 5 | 0.935 (0.896–0.962) | 0.765 (0.709–0.815) | 0.787 (0.740–0.834) | 0.927 (0.892–0.961) | 4.176 | < 0.001 |
ACR TI-RADS | 0.871 (0.839–0.899) | > TR4 | 0.816 (0.762–0.863) | 0.837 (0.787–0.880) | 0.823 (0.775–0.871) | 0.831 (0.786–0.876) | 2.319 | 0.020 |
Kwak TI-RADS | 0.885 (0.854–0.911) | > 4b | 0.878 (0.830–0.916) | 0.814 (0.762–0.859) | 0.814 (0.767–0.861) | 0.878 (0.837–0.919) |