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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