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Diagnostic efficacy of various signs.
| CT signs | Sensitivity (%) | Specificity (%) | Accuracy (%) | Youden index | Likelihood ratio |
|---|---|---|---|---|---|
| Irregular margin ring sign | 87.8 | 92.3 | 90.0 | 0.80 | 11.4 |
| Margin defects sign | 75.5 | 96.2 | 86.1 | 0.72 | 19.9 |
| Enhancement blur sign | 80.5 | 61.5 | 68.3 | 0.37 | 1.96 |
| Logistic regression model | 87.8 | 94.2 | 91.1 | 0.82 | 15.1 |
