Table 4.
Diagnostic Values of Different Risk Stratification Models According to the Nodule Diameter
| Diameter | < 2 cm | 2–4 cm | > 4 cm | T | ||||
|---|---|---|---|---|---|---|---|---|
| Cases (No) | 158 | 69 | 34 | 261 | ||||
| CA (No) | 26 | 24 | 7 | 57 | ||||
| CA (%) | 16.45% | 34.7% | 20.56 | 21.83 | ||||
| Technique | Se (%) | Sp (%) | Se (%) | Sp (%) | Se (%) | Sp (%) | ||
| US | L | 59.09 | 96.15 | 26.66 | 79.16 | 37.03 | 100 | |
| I+H | 57.69 | 99.24 | 50.00 | 84.44 | 57.14 | 74.01 | ||
| US+SE | L | 94.96 | 96.5 | 51.11 | 91.66 | 45.94 | 100 | |
| I+H | 80.76 | 99.24 | 79.16 | 95.55 | 71.40 | 88.8 | ||
| US+SE+V | L | 94.6 | 96.5 | 51.11 | 95.88 | 45.94 | 100 | |
| I+H | 92.30 | 99.24 | 91.66 | 95.55 | 85.71 | 88.80 | ||
Abbreviations: CA, Cancer, Se, sensitivity; Sp, specificity; SE, Real-Time Elastography; V, Volumetric Real-time three-dimensional ultrasound; T, Total number of cases, L – Low, I, Intermediate, H, High.