1 | Linear or triangular subpleural opacities | 0 = absent, 1 = present |
| | Maximum score = 6 |
2 | Decreased pulmonary attenuation | 0 = absent, 1 = one lobe |
| Hypoattenuation (“mosaic perfusion”) in inspiration | Maximum = 6 |
3 | Decreased pulmonary attenuation | 0 = absent, 1 = one lobe |
| Hypoattenuation (“air trapping”) in expiration | Maximum = 6 |
4 | Bronchus/bronchiole: artery diameter ratio | 0 = absent, 1 = one lobe |
| | Maximum = 6 |
5 | Bronchiectasies | 0 = absent, 1 = one lobe |
| | Maximum = 6 |
6 | Peribronchial thickening | 0 = absent, 1 = one lobe |
| | Maximum = 6 |
7 | Bullae | 0 = absent, 1 = one lobe |
| | Maximum = 6 |
8 | Emphysema | 0 = absent, 1 = one lobe |
| | Maximum = 6 |
9 | Collapse/consolidation | 0 = absent, 1 = subsegmental, 2 = segmental |