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Performance of unenhanced MDCT in the diagnosis of PE
| Parameter | AUC | Sensitivity % | Specificity % | PPV % | NPV % |
|---|---|---|---|---|---|
| Intraluminal symptoms | 0.734 | 42.5 | 98.6 | 90.9 | 84.3 |
| Pulmonary artery trunk enlargement | 0.603 | 36.1 | 84.4 | 42.5 | 80.6 |
| Wedge-shaped opacity | 0.535 | 34.0 | 72.9 | 28.5 | 77.7 |
| Pleural effusion | 0.496 | 40.4 | 58.7 | 23.7 | 75.6 |
MDCT, Computed tomography pulmonary angiography; PE, Pulmonary embolism; AUC, Area under the curve; PPV, Positive predictive value; NPV, Negative predictive value
