Table 2 Diagnostic characteristics of some CT findings in predicting positive RT-PCR
From: COVID-19 pandemic: CT chest in COVID-19 infection and prediction of patient’s ICU needs
Characteristics | High probability | Intermediate/high probability | Low or more probability | GGO | Crazy paving | Curvilinear opacity | Vascular enlargement |
|---|---|---|---|---|---|---|---|
Sensitivity | 69.7% | 81.8% | 92.6% | 85.9% | 45.3% | 26.5% | 29.4% |
Specificity | 97.6% | 88.9% | 67.5% | 88.9% | 93.7% | 96.8% | 96.8% |
DA | 77.3% | 83.7% | 85.8% | 86.7% | 58.4% | 45.5% | 47.6% |
YI | 67.3% | 70.7% | 60.1% | 74.8% | 38.9% | 23.3% | 26.2% |
PPV | 98.8% | 95.2% | 88.5% | 95.4% | 95.1% | 95.7% | 96.2% |
NPV | 54.4% | 64.4% | 77.3% | 70.0% | 38.8% | 32.8% | 33.7% |
LR+ | 29.28 | 7.36 | 2.85 | 7.73 | 7.13 | 8.34 | 9.26 |
LR− | 0.31 | 0.21 | 0.11 | 0.16 | 0.58 | 0.76 | 0.73 |
LR | 94.34 | 35.87 | 26.12 | 48.67 | 12.21 | 10.98 | 12.71 |