Table 3 Diagnostic performance based on unenhanced MDCT findings
From: Unenhanced multidetector computed tomography findings in acute central pulmonary embolism
Unenhanced MDCT | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | PLR | NLR | AUC |
|---|---|---|---|---|---|---|---|
High attenuation emboli in PA | 71.9 (53.3, 86.3) | 100 (89.1, 100) | 100 (85.2, 100) | 78.0 (62.4, 89.4) | NE | 0.28 | 0.859 |
Main PA dilatation > 33.2 mm | 46.9 (29.1, 65.3) | 90.6 (75.0, 98.0) | 83.3 (58.6, 96.4) | 63.0 (47.5, 76.8) | 5.0 (3.4, 7.4) | 0.6 (0.2, 1.8) | 0.687 |
Peripheral wedge-shape consolidation | 43.8 (26.4, 62.3) | 78.1 (60.0, 90.7) | 66.7 (43.0, 85.4) | 58.1 (42.1, 73.0) | 2.0 (1.3, 3.1) | 0.7 (0.3, 1.5) | 0.609 |
Number of positive findingsa | 96.9 (83.8, 99.9) | 71.9 (53.3, 86.3) | 77.5 (61.5, 89.2) | 95.8 (78.9, 99.9) | 3.4 (2.7, 4.3) | 0.04 (0.01, 0.3) | 0.909 |