Table 3.
Comparison of thin-section CT parenchymal abnormalities and air trapping at two serial examinations in patients with proven COVID19 infection. A patient may have more than one imaging finding
| Findings* | First CT (acute phase) n = 9 | Second CT (post-COVID)n = 48 |
|---|---|---|
| Ground-glass opacities | 7 (78) | 19 (40) |
| Mosaic attenuation pattern | 1 (11) | 9 (19) |
| Consolidation | 6 (67) | 2 (4) |
| Traction bronchectasis | 6 (67) | 9 (19) |
| Reticulation | 0 (0) | 18 (38) |
| Parenchymal bands | 3 (33) | 15 (31) |
| Bronchial wall thickening | 3 (33) | 6 (13) |
| Air trapping | 1✝ | 37 (77) |
*Data are numbers of patients. Numbers in parentheses are percentages
✝Only one patient had expiratory thin-section CT to assess air trapping