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| Quantitative assessment | CT1 ≤66.9 | CT3/CT1 >15.18 |
|---|---|---|
| True positive, n | 43 | 40 |
| False positive, n | 5 | 8 |
| True negative, n | 42 | 39 |
| False negative, n | 4 | 7 |
| Sensitivity (%) | 91.5 | 85.1 |
| Specificity (%) | 89.4 | 83.0 |
| PPV (%) | 89.6 | 83.3 |
| NPV (%) | 91.3 | 84.8 |
| Prediction accuracy (%) | 90.4 | 84.0 |
HU, Hounsfield units; PPV, positive predictive value; NPV, negative predictive value.
