Table 4 Sensitivity, specificity, PPV, NPV and accuracy of ACR TI-RADS and EU-TIRADS, according to FNA recommendation
From: Analysis of 665 thyroid nodules using both EU-TIRADS and ACR TI-RADS classification systems
ACR TI-RADS | EU-TIRADS | |||
|---|---|---|---|---|
Nodules with recommendation to FNA | Nodules without recommendation to FNA | Nodules with recommendation to FNA | Nodules without recommendation to FNA | |
Malignant (n = 16) | 14 (TP) | 2 (FN) | 14 (TP) | 2 (FN) |
Benign (n = 59) | 43 (FP) | 16 (TN) | 48 (FP) | 11 (TN) |
Total (n = 75) | 57 | 18 | 62 | 13 |
Sensitivity | 87.5% | 87.5% | ||
Specificity | 27.1% | 18.6% | ||
PPV | 24.6% | 22.6% | ||
NPV | 88.9% | 84.6% | ||
Accuracy | 40% | 33.3% | ||