Table 6 Comparing the different diagnostic sonographic criteria, real-time elastography, and TERADS score in prediction of malignant thyroid nodules
Diagnostic tool | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | Over all accuracy (%) |
|---|---|---|---|---|---|
Ultrasonography | 89 | 98 | 70 | 99.3 | 97.2 |
AP/T | 19.4 | 99.6 | 73.7 | 95.4 | 95 |
Border | 52.8 | 99.2 | 80.8 | 97.2 | 96.6 |
Calcification | 77.8 | 72.8 | 14.7 | 98.2 | 73 |
Halo | 65.3 | 69.4 | 11.4 | 97.1 | 69.2 |
TIRADS (combined 2 and 3 vs 4 and 5) | 98.6 | 32.5 | 8.2 | 99.7 | 36.3 |
TIRADS (5 vs others) | 86.1 | 75.2 | 17.5 | 98.9 | 75.8 |
Elastography (combined 1 and 2 vs 3 and 4) | 77.8 | 90.2 | 32.4 | 98.5 | 89.5 |
Combined elastography and TIRADS (both high) | 77.8 | 91.1 | 34.6 | 98.6 | 90.4 |
Combined elastography and TIRADS (either any of them is high) | 98.6 | 32.7 | 8.1 | 99.7 | 36.4 |