Table 3.
The result of sensitivity, specificity, accuracy, and positive-predictive value calculations for the features consolidation, ground-glass opacity, crazy-paving pattern, and atoll sign
| Feature | Sensitivity (%) | Specificity (%) | Accuracy (%) | PPV$ (%) | ||||
|---|---|---|---|---|---|---|---|---|
| RD* | ULD# | RD | ULD | RD | ULD | RD | ULD | |
| Consolidation | 52 | 60 | 84 | 83 | 81 | 80 | 28 | 29 |
| Ground-glass opacity | 62 | 62 | 79 | 66 | 77 | 66 | 26 | 18 |
| Atoll sign | 14 | 14 | 90 | 99 | 90 | 90 | 91 | 75 |
| Crazy-paving pattern | 7 | 7 | 98 | 98 | 87 | 89 | 50 | 33 |
$
Positive predictive value;
*
Routine dose;
#
Ultra-low-dose