Fig 1.
Measurement of the pulmonary artery and ascending aorta diameters.
Pulmonary artery and ascending aorta diameters were assessed on a transverse CT image at the level of the pulmonary artery bifurcation. Vessel diameters were obtained by measuring the widest diameter vertical to the long axis of the main pulmonary artery, using a computer caliper. mPA, main pulmonary artery; Ao, aorta
Fig 2.
Distribution of mPA, Ao, and mPA/Ao ratio.
Histograms show the distributions of mPA, Ao and mPA/Ao ratio values in all (n = 2,547) (A, C, E) and healthy participants (n = 813) (B, D, F), respectively (dark gray: male, gray: female). mPA, main pulmonary artery; Ao, aorta.
Table 1.
Baseline characteristics of the study population.
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Table 2.
Comparison of mPA, Ao, and mPA/Ao in the study population according to clinical condition (n = 2,547).
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Table 3.
mPA, Ao and mPA/Ao according to age in healthy reference group (n = 813).
Table 4.
Clinical characteristics of the groups with mPA/Ao ratio < 1.04 and mPA/Ao ratio ≥ 1.04 (n = 2,547).
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Table 5.
Multivariate linear analysis for the effects of clinical characteristics on mPA, Ao, and mPA/Ao ratio.