Dice score, COPD (n=8)	Dice score, No COPD (n=6)
Total lung (1H)	.96±.02	.96±.01
Non-ventilated (3He)	.92±.02	.88±.07
Low ventilated (3He)	.69±.28	.80±.08
Ventilated (3He)	.88±.09	.92±.03