Age dependence of pulmonary artery blood flow measured by 4D flow cardiovascular magnetic resonance: results of a population-based study

Table 2 Pulmonary and aortic cross-sectional area

	Group 1 (20–39y.) n = 43	Group 2 (40–59y.) n = 44	Group 3 (60–80y.) n = 39	F(2,375)	p-value
CSA_max, cm²(±SD)
MPA	6.53 ± 1.34	6.11 ± 1.21	5.78 ± 1.17	7.39	0.008*
LPA	3.31 ± 0.65	3.55 ± 1.23	3.69 ± 0.96	3.16	0.078
RPA	3.22 ± 0.62	3.59 ± 1.24	3.79 ± 1.07	6.35	0.013*
AAo	5.97 ± 1.35	7.05 ± 1.51	7.45 ± 1.48	21.41	<0.001*
CSA_min, cm²(±SD)
MPA	5.19 ± 1.22	5.09 ± 0.96	4.82 ± 0.90	2.99	0.109
LPA	2.71 ± 0.62	2.93 ± 0.98	3.03 ± 0.85	3.08	0.082
RPA	2.46 ± 0.51	2.79 ± 0.99	2.95 ± 0.80	7.86	0.006*
AAo	5.08 ± 1.27	6.28 ± 1.39	6.77 ± 1.45	31.02	<0.001*
CSA_avg, cm²(±SD)
MPA	5.87 ± 1.27	5.61 ± 1.09	5.29 ± 1.03	5.23	0.024*
LPA	3.03 ± 0.62	3.24 ± 1.12	3.37 ± 0.91	2.59	0.088
RPA	2.88 ± 0.57	3.22 ± 1.13	3.39 ± 0.98	6.19	0.014*
AAo	5.59 ± 1.30	6.78 ± 1.46	7.19 ± 1.47	26.00	<0.001*
CSA_ratio, 1(±SD)
MPA/AAo	1.05 ± 0.23	0.83 ± 0.17	0.74 ± 0.19	51.56	<0.001*
CSA_change, %(±SD)
MPA	20.78 ± 5.30	16.35 ± 5.04	16.17 ± 5.03	17.06	<0.001*
LPA	18.56 ± 5.59	17.13 ± 3.55	18.29 ± 5.29	0.08	0.773
RPA	23.69 ± 5.52	22.23 ± 5.09	21.64 ± 6.01	2.85	0.094
AAo	15.06 ± 5.85	10.99 ± 4.09	9.26 ± 3.32	32.97	<0.001*

ISSN: 1532-429X