Table 3 Comparison among imaging findings of initial, peak, and pre-discharge CTs of COVID-19 during hospitalization
From: CT appearances, patterns of progression, and follow-up of COVID-19: evaluation on thin-section CT
| Â | Initial CT (%) | Peak CT (%) | Pre-discharge CT (%) | p value |
|---|---|---|---|---|
No | 67a | 69 | 69 | Â |
Ground-glass opacity(GGO) | 67 (100.0) | 69 (100.0) | 69 (100.0) | Â |
 Round GGO | 36 (53.7) | 22 (31.9) | 22 (31.9) | 0.011 |
 Patchy GGO | 31 (46.3) | 47 (68.1) | 47 (68.1) | |
Consolidation | 49 (73.1) | 65 (94.2) | 45 (65.2) |  < 0.001 |
Crazy-paving pattern | 53 (79.1) | 59 (85.5) | 34 (49.3) |  < 0.001 |
Air bronchogram | 60 (89.6) | 64 (92.8) | 41 (59.4) |  < 0.001 |
Irregular lines | 31 (46.3) | 47 (68.1) | 51 (73.9) | 0.002 |
Only reticulation | 0 (0.0) | 1 (1.4) | 16 (23.2) |  < 0.001 |
Pleural thickening adhesions | 52 (77.6) | 67 (97.1) | 54 (78.3) | 0.002 |
Pleural effusion | 3 (4.5) | 7 (10.1) | 0 (0) | 0.015 |