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Table 4 Parameters of pulmonary flow

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

  Group 1
(20–39y.)
n = 43
Group 2
(40–59y.)
n = 44
Group 3
(60–80y.)
n = 39
F(2,375) p-value
Vmax, m/s(±SD)
 MPA 0.88 ± 0.17 0.88 ± 0.16 0.95 ± 0.29 1.86 0.175
 LPA 0.85 ± 0.26 0.70 ± 0.16 0.65 ± 0.23 17.74 <0.001*
 RPA 0.91 ± 0.18 0.79 ± 0.15 0.78 ± 0.23 9.22 0.003*
 AAo 0.71 ± 0.16 0.58 ± 0.15 0.46 ± 0.14 55.34 <0.001*
Vavg, m/s(±SD)
 MPA 0.23 ± 0.04 0.23 ± 0.04 0.23 ± 0.07 0.68 0.795
 LPA 0.23 ± 0.05 0.19 ± 0.03 0.18 ± 0.05 27.40 <0.001*
 RPA 0.25 ± 0.05 0.23 ± 0.03 0.21 ± 0.05 21.97 <0.001*
 AAo 0.25 ± 0.05 0.23 ± 0.04 0.21 ± 0.05 22.25 <0.001*
Qmax-sys, mL(±SD)
 MPA 354.2 ± 98.7 344.3 ± 92.6 328.8 ± 93.2 1.46 0.229
 LPA 170.4 ± 50.3 150.4 ± 45.6 133.5 ± 56.9 10.73 <0.001*
 RPA 186.4 ± 48.5 173.4 ± 44.6 157.3 ± 41.2 8.60 0.004*
 AAo 398.5 ± 128.6 343.1 ± 113.6 327.1 ± 85.2 8.39 0.004*
Qmax-dia, mL(±SD)
 MPA 52.1 ± 18.53 38.6 ± 15.62 29.4 ± 11.17 43.97 <0.001*
 LPA 35.0 ± 11.83 22.2 ± 9.04 13.4 ± 8.5 96.55 <0.001*
 RPA 28.1 ± 10.78 20.5 ± 9.71 17.1 ± 8.83 25.48 <0.001*
 AAo 33.9 ± 14.46 29.5 ± 10.74 18.6 ± 8.07 36.26 <0.001*
Qmean, mL/cycle(±SD)
 MPA 79.72 ± 19.41 74.89 ± 17.12 71.65 ± 13.87 4.59 0.034*
 LPA 39.01 ± 8.11 33.35 ± 7.76 29.58 ± 8.04 28.04 <0.001*
 RPA 43.07 ± 11.05 39.86 ± 8.68 37.04 ± 8.06 8.44 0.004*
 AAo 82.21 ± 20.96 73.39 ± 15.64 66.48 ± 13.93 17.13 <0.001*
RF, %(±SD)
 MPA 3.41 ± 2.74 2.09 ± 1.29 2.43 ± 1.76 4.75 0.031*
 LPA 2.58 ± 1.65 1.48 ± 1.28 2.03 ± 2.13 2.16 0.144
 RPA 1.49 ± 1.20 0.95 ± 0.79 1.66 ± 1.42 0.45 0.504
 AAo 1.20 ± 1.12 1.34 ± 1.05 2.25 ± 2.77 7.08 0.009*
CO, L/min(±SD) 5.33 ± 1.56 4.77 ± 0.99 4.39 ± 1.08 11.90 <0.001*
  1. Peak (Vmax) and mean (Vavg) velocities, peak systolic (Qmax-sys) and diastolic (Qmax-dia) antegrade flow volumes, mean flow volume per cardiac cycle (Qmean), fraction of retrograde flow (RF), and cardiac output (CO) as measured in the AAo. SD standard deviation. *statistically significant