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Diagnostic accuracy of multidetector computed tomography (MDCT) in determining the Grade 2 pancreatic neuroendocrine tumours.
| MDCT criteria | Sensitivity | Specificity | PPV | NPV | Accuracy |
|---|---|---|---|---|---|
| Arterial enhancement ratio <1.1 | 70 | 78.9 | 77.8 | 71.4 | 74.4 |
| Size >2 cm | 65 | 84.2 | 81.3 | 69.6 | 74.4 |
| Type B contrast enhancement | 70 | 89.5 | 87.5 | 73.9 | 79.5 |
| Combination of at least two out of three findings | 75 | 89.4 | 88.2 | 77.2 | 82 |
| Combination of three findings | 45 | 94.7 | 90 | 62 | 69.2 |
