. Author manuscript; available in PMC: 2015 Apr 1.

Published in final edited form as: Acad Radiol. 2014 Apr;21(4):523–530. doi: 10.1016/j.acra.2013.12.015

Table 3.

Vessel measurements by patient group. “Aorta” refers to the diameter of the aorta. MPAD and “Aorta” were measured at the level of the bifurcation of the main pulmonary artery on the same CT section. p values are based on Student's t-test.

Patient Group	Total	MPAD (mm) Mean ± SD (range)	p^*	rPA Mean ± SD (range)	p^*	Aorta (mm) Mean ± SD (range)	p^*
PH	175	36.4 ± 6.68 (24.2-70.6)	< 0.05	1.27 ± 0.28 (0.70-2.20)	< 0.05	29.3 ± 4.37 (18.8-39.9)	0.2
non-PH	16	28.6 ± 5.48 (17.7-35.6)		0.98 ± 0.17 (0.55-1.26)		29.4 ± 3.44 (22.9-36.1)
“normal”	114	24.9 ± 3.66 (17.7-34.0)		0.87 ± 0.13 (0.56-1.24)		29.0 ± 4.40 (17.3-44.3)
“normal” + non-PH	130	25.4 ± 4.08 (17.7-35.6)		0.88 ± 0.14 (0.55-1.26)		29.1 ± 4.28 (17.3-44.3)

p-values comparing PH vs “normal”

SD=standard deviation