Table 2.
Pooled incidence of various radiological findings on chest CT in Covid-19 patients
| Number of studies | Pooled incidence(as per total number of CT performed) | |
|---|---|---|
| Major patterns of increased attenuation | ||
| GGO | 43 | 2383/4738 (50.2%) |
| Consolidation | 33 | 1021/4221 (24.2%) |
| GGO + consolidation (mixed) | 20 | 854/1922 (44.4%) |
| Reticular pattern | 11 | 170/1712 (9.9%) |
| Ancillary findings | ||
| Interlobular septal thickening | 12 | 310/2053 (15.1%) |
| Intralobular septal thickening | 1 | 30/50 (60%) |
| Crazy paving | 18 | 266/1364 (19.5%) |
| Vascular enlargement | 7 | 353/550 (64%) |
| Reversed halo sign | 6 | 10/417 (2.4%) |
| Air bronchogram | 16 | 572/1388 (41.2%) |
| Bronchial wall thickening | 8 | 74/509 (14.5%) |
| Subpleural line | 6 | 98/388 (25%) |
| Nodule | 17 | 139/1769 (7.8%) |
| Pleural effusion | 27 | 105/2084 (5%) |
| Pleural thickening | 6 | 213/511 (41.7%) |
| Lymphadenopathy | 24 | 98/1825 (5.4%) |
| Pericardial effusion | 5 | 11/300 (3.6%) |
| Cavitation | 14 | 1/944 (0.1%) |
| Pulmonary fibrosis | 10 | 121/694 (17.4%) |
| Bronchus distortion | 2 | 21/113 (18.6%) |
| Bronchiectasis | 6 | 69/385 (18%) |