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Table 2 CMR imaging characteristics in the study population.

From: Pulmonary Artery Stiffness by Cardiac Magnetic Resonance Imaging Predicts Major Adverse Cardiovascular Events in patients with Chronic Obstructive Pulmonary Disease

Variables

Control group (n = 30)

Test group

p-Value*

No PH (n = 14)

PH (n = 16)

LV EDV index, mL/m2, mean (SD)

71.3 (12.4)

63.6 (10.2)

61.1 (10.6)

NS

LV ESV index, mL/m2, mean (SD)

25.1 (4.4)

27.2 (5.5)

26.9 (3.8)

0.01

LV ejection fraction, %, mean (SD)

64.1 (6.6)

59.5 (2.7)

57.5 (2.4)

<0.001

LV mass index, g/m2, mean (SD)

57.4 (17.9)

67.9 (8.1)

65.3 (13.0)

0.01

LA area, cm2/m2, mean (SD)

8.2 (3.2)

10.0 (2.2)

10.1 (2.7)

0.001

RV EDV index, mL/m2, mean (SD)

62.1 (12.1)

72.1 (13.3)

79.5 (10.1)

NS

RV ESV index, mL/m2, mean (SD)

23.2 (8.8)

30.6 (6.7)

41.1 (6.6)

<0.001

RV ejection fraction, %, mean (SD)

63.8 (9.4)

57.6 (3.4)

48.1 (5.1)

<0.001

RV mass index, g/m2, mean (SD)

22.6 (5.4)

33.4 (7.1)

41.6 (7.2)

<0.001

RA area, cm2/m2, mean (SD)

8.6 (2.3)

10.4 (2.5)

11.1 (1.4)

<0.001

TAPSE, mm, mean (SD)

20.7 (3.7)

15.4 (2.4)

15.7 (3.1)

<0.001

RV/LV mass ratio, mean (SD)

0.42 (0.15)

0.48 (0.07)

0.64 (0.08)

0.001

PA: AA diameter ratio

0.91 (0.13)

0.97 (0.13)

1.1 (0.14)

<0.001

Maximal PA area, cm2, mean (SD)

8.2 (1.4)

9.4 (1.5)

10.4 (1.9)

<0.001

Minimal PA area, cm2, mean (SD)

5.8 (1.1)

7.1 (1.2)

7.9 (1.3)

<0.001

PA elasticity, %, median (IQR)

41.5 (24–116)

38.5 (12–44)

29.5 (15–53)

0.001

PA distensibility, %/mmHg, median (IQR)

1.26 (0.39–3.60)

0.73 (0.25–2.39)

0.51 (0.23–1.02)

0.001

PA compliance, mm2/mmHg, median (IQR)

25.0 (10–50)

10.8 (3.6–46.0)

6.4 (3.7–11.1)

<0.001

PA elastic modulus, mmHg, median (IQR)

24 (14–63)

64 (11–190)

137 (82–216)

<0.001

PA stiffness index beta, median (IQR)

2.0 (1.1–3.4)

2.7 (0.53–8.1)

2.9 (2.1–7.4)

<0.001

PA capacitance, mm3/mmHg, median (IQR)

9.8 (4.4–19.6)

3.1 (1.7–13.4)

1.8 (1.4–3.0)

<0.001

PWV, m/s, mean (SD)

2.10 (0.7)

5.58 (1.4)

9.71 (2.2)

<0.001

  1. Abbreviations: AA, ascending aorta; LA, left atrium; LV, left ventricle; LVEDV, left ventricular end-diastolic volume; LVESV, left ventricular end-systolic volume; PH, pulmonary hypertension; RA, right atrium; RV, right ventricle; RVEDV, right ventricular end-diastolic volume; RVESV, right ventricular end-systolic volume TAPSE, tricuspid annular plane systolic excursion; PA, pulmonary artery; PWV, pulse wave velocity; IQR, interquartile range; SD, standard deviation.
  2. *Represents statistical significance between groups.
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