Table 1.
Patient characteristics at baseline (date of MRI scan). WHO, World Health Organization; BP, Blood pressure; LV, left ventricle; RV, right ventricle.
| Characteristic | n | % or Mean ±SD |
|---|---|---|
| Age (years) | 62.9 ±14.5 | |
| Body surface area (m2) | 1.92 ±0.25 | |
| Male | 169 | 56 |
| Race | ||
| Caucasian | 215 | 71.2 |
| Asian | 7 | 2.3 |
| Black | 13 | 4.3 |
| Other | 28 | 9.3 |
| Unknown | 39 | 12.9 |
| WHO functional class | ||
| I | 1 | 0 |
| II | 45 | 15 |
| III | 214 | 71 |
| IV | 42 | 14 |
| Haemodynamics | ||
| Systolic BP (mmHg) | 131.5 ±25.2 | |
| Diastolic BP (mmHg) | 75 ±13 | |
| Heart rate (beats/min) | 69.8 ± 22.5 | |
| Mean right atrial pressure (mmHg) | 9.9 ±5.8 | |
| Mean pulmonary artery pressure (mmHg) | 44.1 ±12.6 | |
| Pulmonary vascular resistance (Wood units) | 8.9 ±5.0 | |
| Cardiac output (l/min) | 4.3 ±1.5 | |
| LV Volumetry | ||
| LV ejection fraction (%) | 61 ± 11.1 | |
| LV end diastolic volume index (ml/m) | 110 ± 37.4 | |
| LV end systolic volume index (ml/m) | 44 ± 22.9 | |
| RV Volumetry | ||
| RV ejection fraction (%) | 38 ± 13.7 | |
| RV end diastolic volume (ml/m) | 194 ± 62 | |
| RV end systolic volume (ml/m) | 125 ± 59.3 | |
| RV Strain | ||
| Longitudinal (%) | -16.8 ± 4.7 | |
| Radial (%) | +18.0 ± 4.4 | |
| Circumferential (%) | -9.6 ± 7.0 |