Table 3 Diagnostic performance of computed tomography features for distinguishing follicular neoplasm from nodular hyperplasia
From: Comparison of computed tomography features between follicular neoplasm and nodular hyperplasia
CT features | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | A z value* | p value |
|---|---|---|---|---|---|---|
Degree of attenuation | 96.6 | 24.6 | 53.8 | 88.9 | 0.567 | 0.058 |
Pattern of attenuation | 67.8 | 38.5 | 50 | 56.8 | 0.531 | 0.469 |
Configuration | 64.4 | 63.1 | 61.3 | 66.1 | 0.620 | 0.009 |
Margin | 0 | 90.8 | 0 | 50 | 0.519 | 0.679 |
Shape | 83.1 | 40 | 55.7 | 72.2 | 0.68 | 0.001 |
Calcifications | 18.6 | 90.8 | 64.7 | 55.1 | 0.546 | 0.142 |
Degree of enhancement | 44.1 | 89.2 | 78.8 | 63.7 | 0.682 | < 0.001 |
Pattern of enhancement | 93.2 | 20 | 51.4 | 76.5 | 0.559 | 0.058 |
Presence of CT halo sign | 71.2 | 83.1 | 79.2 | 76.1 | 0.771 | < 0.001 |