Table 2. Overview of the densitometry results.

	YACTA	lowATT	Pulmo 3D	p
LV (l)	6.824±1.255	6.657±1.251	6.689±1.356	<0.001
EV (l)	2.514±0.991	2.339±1.025	2.195±1.043	<0.001
EI (%)	38.8±8.8	37.0±9.4	33.5±9.5	<0.001
MLD (HU)	−877±8		−895±13	<0.001

LV = lung volume, EV = emphysema volume, EI = emphysema index, MLD = mean lung density, HU = Hounsfield units.