Table 4 Comparison of diagnostic efficacy of CAD system on thyroid nodules of different sizes
Group | Sensitivity% | Specificity % | Positive predictive value% | Negative predictive value% | Accuracy % | AUC (95% CI) |
|---|---|---|---|---|---|---|
≤ 1 cm | 78.0 | 63.1 | 69.6 | 72.7 | 70.9 | 0.706 (0.628–0.776) |
1–2 cm | 89.2 | 62 | 72.4 | 83.8 | 76.4 | 0.756 (0.663–0.835) |
≥ 2 cm | 92.3 | 57.9 | 60.0 | 91.7 | 71.9 | 0.751 (0.567–0.886) |