Table 2: Cardiac and Lung Assessment on CT.

Normal continuous variables are reported as mean ± standard deviation while non-normal variables are reported as median with first and third quartiles (Q1 and Q3, respectively). Categorical variables are reported as number (percentage).

	“Classic” NFHG	“Discordant” NFLG	“Paradoxical” pLFLG
	(n=27)	(n=27)	(n=27)	p-value
LV Assessment
LV End-Diastolic Volume, mL	164 (133 to 180)	147 (129 to 187)	144 (111 to 182)	0.57
LV End-Systolic Volume, mL	58 (46 to 74)	60 (49 to 86)	56 (44 to 80)	0.53
LV Stroke Volume, mL	96 ± 19	92 ± 21	86 ± 23	0.17
LV Ejection Fraction, %	61 ± 6	58 ± 6	58 ± 6	0.05
LV total mass, g	159 ± 48	151 ± 45	134 ± 42	0.12
LV Septum Max, mm	14 ± 3	13 ± 3	13 ± 2	0.15
RV Assessment
RV End-Diastolic Volume, mL	146 ± 38	155 ± 52	152 ± 49	0.77
RV End-Systolic Volume, mL	63 ± 24	72 ± 32	81 ± 41	0.14
RV Stroke Volume, mL	83 ± 20	84 ± 23	72 ± 20	0.07
RV Ejection Fraction, %	58 ± 7‡	55 ± 6‡	49 ± 10*,†	<0.01
RV total mass, g	30 ± 7	33 ± 9	33 ± 12	0.43
Lung Assessment
Air Fraction (%)	75 ± 7	73 ± 8	74 ± 6	0.58
Emphysema (%)	0 (0 to 1)	0 (0 to 0)	0 (0 to 0)	0.19

NFHG: normal-flow high-gradient aortic stenosis, NFLG: normal-flow low-gradient aortic stenosis, pLFLG: paradoxical low-flow low-gradient aortic stenosis

^*p<0.05 compared NFHG AS

^†p<0.05 compared to NFLG AS

^‡p<0.05 compared to pLFLG AS