| |
Healthy volunteers
|
PAH patients
|
p value
|
|---|
|
Diameter (mm)
|
|
MPA
|
13.0 ± 1.0
|
15.6 ± 2.5
|
0.038
|
|
RPA
|
8.0 ± 0.7
|
11.7 ± 1.7
|
0.001
|
|
LPA
|
9.1 ± 0.8
|
13.8 ± 7.6
|
0.097
|
|
Area (mm2)
|
|
MPA
|
537.6 ± 94.2
|
780.0 ± 272.2
|
0.058
|
|
RPA
|
233.7 ± 36.3
|
435.8 ± 132.2
|
0.003
|
|
LPA
|
262.3 ± 47.0
|
753.3 ± 897.8
|
0.209
|
|
Maximum blood flow velocity (m/sec)
|
|
MPA
|
0.41 ± 0.10
|
0.28 ± 0.09
|
0.019
|
|
RPA
|
0.41 ± 0.15
|
0.22 ± 0.07
|
0.006
|
|
LPA
|
0.32 ± 0.10
|
0.18 ± 0.07
|
0.010
|
|
Mean blood flow velocity (m/sec)
|
|
MPA
|
0.10 ± 0.02
|
0.07 ± 0.02
|
0.011
|
|
RPA
|
0.11 ± 0.04
|
0.06 ± 0.02
|
0.007
|
|
LPA
|
0.09 ± 0.02
|
0.06 ± 0.05
|
0.249
|
|
Maximum blood flow volume (L/min)
|
|
MPA
|
13.54 ± 2.83
|
12.74 ± 3.49
|
0.650
|
|
RPA
|
5.87 ± 1.08
|
5.96 ± 1.05
|
0.874
|
|
LPA
|
5.10 ± 1.50
|
4.85 ± 2.83
|
0.911
|
|
Mean blood flow volume (L/min)
|
|
MPA
|
3.14 ± 0.77
|
2.78 ± 0.34
|
0.240
|
|
RPA
|
1.53 ± 0.29
|
1.65 ± 0.55
|
0.618
|
|
LPA
|
1.38 ± 0.38
|
1.41 ± 0.62
|
0.909
|
|
Stroke volume (mL)
|
|
MPA
|
62.5 ± 15.6
|
54.9 ± 7.3
|
0.219
|
|
RPA
|
30.5 ± 5.8
|
32.7 ± 10.6
|
0.667
|
|
LPA
|
27.4 ± 7.5
|
27.7 ± 12.0
|
0.945
|
- Data are expressed as mean ± standard deviation
-
PAH pulmonary arterial hypertension, MPA main pulmonary artery, RPA right pulmonary artery, LPA left pulmonary artery
