Table 3 Predictive value of ultrasonography (US) features in thyroid lesions
US feature | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | Accuracy (%) |
|---|---|---|---|---|---|
Round shape | 41.4 | 75.9 | 49.1 | 69.8 | 63.5 |
Loss of echogenic fatty hilum | 29.7 | 98.7 | 92.7 | 71.4 | 73.9 |
Cystic change | 28.9 | 91.7 | 65.5 | 69.7 | 69.1 |
Calcification | 34.4 | 94.3 | 77.2 | 71.9 | 72.8 |
Abnormal vascularity | 32.8 | 77.6 | 45.2 | 67.3 | 61.5 |