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Table 2 ECHO, CMR and CC data and comparison between the two groups

From: The role of cardiovascular magnetic resonance in candidates for Fontan operation: Proposal of a new Algorithm

   All
(44 pts)
Group 1
(18 pts)
Group 2
(26 pts)
P
Echo AV valve regurgitation:     
  - Absent/trivial 20 10 10  
  - Mild/Moderate 18 8 10  
  - Severe 6 0 6  
  ASD:     
  - Large 37 13 24  
  - Restrictive/absent 4 4 0  
  - Not visualized 3 1 2  
  Ventricular function:     
  - Normal 41 18 23  
  - Mild/moderate dysfunction 2 0 2  
  - Severe dysfunction 1 0 1  
  Systemic obstruction 5 0 5  
  Right pulmonary artery     
  - Not visualized 18 5 13  
  - Stenosis/hypoplasia 3 1 2  
  Left pulmonary artery     
  - Not visualized 29 7 22  
  - Stenosis/hypoplasia 2 1 1  
  Superior vena cava     
  - Not visualized 7 1 6  
CMR End ventricular vol. (ml/m2) 106 ± 28 97 ± 23 112 ± 30 0.1
  Ventricular EF (%) 61 ± 9.3 64.5 ± 8.5 58 ± 8.9 0.003
  RPA diameter (mm) 12 (6-25) 13 (8-24) 11 (8-21) 0.25
  LPA diameter (mm) 10.5 (5-23) 11.5 (8-22) 9 (5-23) 0.1
  McGoon index 1.98 (1.1-3.4) 2.1 (1.58-2.8) 1.9 (1.1-3.4) 0.8
  Nakata index (mm2/m2) 237 (107-654) 236 (146-567) 241(107-654) 0.85
  RPA flow (ml/min) 886 (195-3815) 788 (195-3815) 972 (325-2352) 0.9
  RPVs flow (ml/min)* 1573 (900-3900) 1712 (1033-3900) 1403 (900-3100) 0.3
  LPA flow (ml/min) 732 (100-1858) 765 (263-1858) 467 (100-1463) 0.1
  LPV vein flow (ml/min)* 1185 (583-2500) 1250 (745-2360) 1120 (583-2500) 0.6
CC Radiation DAP (Gycm2) 21.6 (5-270) 20 (5-40) 26.5 (9-270) 0.35
  Minor Complications 4 1 3 0.8
  RPA pressure (mmHg) 12.2 ± 2.98 11.2 ± 2.4 13.1 ± 3.4 0.04
  LPA (mmHg) 11.7 ± 3 10.8 ± 2 12.4 ± 3.3 0.05
  SVC pressure (mmHg) 12.8 ± 3 11.3 ± 2.5 13.5 ± 2.5 0.01
  Atrial pressure (mmHg) 8.1 ± 2.2 7.7 ± 2.3 8.5 ± 2.2 0.2
  End ventricular pressure (mmHg) 8.8 ± 2.3 8.5 ± 2.3 9.1 ± 2.3 0.3
  PVR (UI/m2) 1.75 ± 0.6 1.55 ± 0.6 1.84 ± 0.46 0.08
  McGoon index 1.95 ± 0.47 1.97 ± 0.4 1.92 ± 0.5 0.7
  Nakata index (mm2/m2) 275 (77-1044) 325 (158-1044) 257(77-586) 0.3
  Mayo clinic index 2.93 ± 0.94 2.75 ± 1,15 3 ± 0.8 0.9
  1. Continuous data are expressed as mean ± SD and as median and range depending upon the normality of the data. * Assessed in the last 21 patients
  2. Legend: ASD: atrial septal defect; DAP: Dose Area Product; Ed: End-diastolic; EF: ejection fraction ; LPA: left pulmonary artery; LPVs: left pulmonary veins; PVR: pulmonary vascular resistance; RPA: right pulmonary artery; RPVs: right pulmonary veins; SVC: superior vena cava