Table 2. The criteria for lesion severity scores.

Disease (a)	Score
No disease	0
<50% of area affected	1
≥50% of area affected	2
Cavitation (b)	Score
No cavitation	0
Single cavity, <2cm diameter	0.25
Single cavity, 2-4cm diameter	0.5
Single cavity, >4cm diameter	1.0
Multiple cavities, largest <2cm diameter	0.5
Multiple cavities, largest 2-4cm diameter	1.0
Multiple cavities, largest >4cm diameter	2.0