Clinical characteristics of the study population
| Patients | Volunteers | |
| Male/female | 12/9 | 4/3 |
| Age (years) | 26.6 (8.6) | 26.9 (3.9) |
| NYHA class I/II | 13/8 | 7/0 |
| ccTGA | 2 | |
| TGA (Mustard or Senning) | 9 | |
| Corrected tetralogy of Fallot | 10 | |
| Pulmonary artery stenosis | 2 | |
| RV systolic pressure (mm Hg) | 36 to 134 | |
| RV EDV/BSA (ml/m2) | 65.3 (23.3) | 66.8 (17.6) |
Values are mean (SD) or n.
BSA, body surface area; ccTGA, congenitally corrected transposition of the great arteries; EDV, end diastolic volume; NYHA, New York Heart Association; RV, right ventricular; TGA, transposition of the great arteries.