Table 1 Criteria for lesion severity
Criteria | Severity score |
|---|---|
Disease | |
No disease | 0 |
< 50% of area affected | 1 |
≥ 50% of area affected | 2 |
Cavitation | |
No cavitation | 0 |
Single cavity | |
< 2 cm diameter | 0.25 |
2–4 cm diameter | 0.5 |
> 4 cm diameter | 1 |
Multiple cavities | |
Largest < 2 cm diameter | 0.5 |
Largest 2–4 cm diameter | 1 |
Largest > 4 cm diameter | 2 |