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Table 5 CMR Parameter Associations with MPBF

From: Maldistribution of pulmonary blood flow in patients after the Fontan operation is associated with worse exercise capacity

 

All patients (n = 147)

With MPBF (n = 53)

Without MPBF (n = 94)

P value

Ventricular end-diastolic volume (ml/BSA1.3)

98 ± 29

104 ± 35

94 ± 25

0.05

Ventricular end-systolic volume (ml/BSA1.3)

49 ± 25

54 ± 26

46 ± 19

0.04

Aortopulmonary collateral flow (%)

12 [3–23]

16 [4–27]

10 [3–20]

0.02

Ascending aorta area (cm2)

4.9 ± 2.7

5.8 ± 3.7

4.4 ± 1.9

0.001

Total aortic root area (cm2)

6.9 ± 1.9

5.6 ± 1.7

5.1 ± 1.8

0.03

Pulmonary artery symmetry index (%)

65 ± 24

59 ± 25

68 ± 23

0.02

Pulmonary artery compression by the ascending aorta or aortic root

32 (22%)

21 (39%)

11 (12%)

0.001

Lung volume percentage difference (%)

13 ± 9

15 ± 7

12 ± 9

0.04

Indexed ventricular stroke volume (ml/m2)

57 ± 11

60 ± 13

56 ± 12

0.55

Ventricular mass-to-volume ratio (gram/ml)

0.55 ± 0.19

0.53 ± 0.20

0.58 ± 0.18

0.13

Indexed Ventricular mass (g/m2)

61.8 ± 19

62.0 ± 21

61.7 ± 18

0.77

  1. Abbreviations: MPBF: maldistribution of pulmonary blood flow; BSA: body surface area