Table 4.
Quantitative measurements of the thoracic vasculature of both readers on first-pass CMRA and mDixon steady-state CMRA at pre-defined measurement points
| Measurement points | Reader 1 | Reader 2 | ||||
|---|---|---|---|---|---|---|
| First-pass CMRA | mDixon Steady-state CMRA | P value | First-pass CMRA | mDixon Steady-state CMRA | P value | |
| Ascending aorta (mm) | 16.2 ± 3.3 | 15.8 ± 3.4 | < 0.001 | 16.1 ± 3.3 | 15.8 ± 3.4 | 0.001 |
| Descending aorta (mm) | 9.6 ± 1.6 | 9.3 ± 1.7 | < 0.001 | 9.6 ± 1.6 | 9.3 ± 1.6 | < 0.001 |
| Main pulmonary artery/conduit (mm) | 17.1 ± 4.7 | 16.5 ± 4.3 | 0.012 | 17.1 ± 4.7 | 16.7 ± 4.4 | 0.007 |
| Right pulmonary artery (mm) | 10.4 ± 2.4 | 9.9 ± 2.3 | < 0.001 | 10.5 ± 2.5 | 9.9 ± 2.4 | < 0.001 |
| Left pulmonary artery (mm) | 9.3 ± 2.4 | 8.9 ± 2.4 | < 0.001 | 9.4 ± 2.5 | 8.9 ± 2.5 | < 0.001 |
| Superior vena cava/Glenn anastomosis (mm) | 12.1 ± 2.6 | 11.7 ± 2.7 | 0.007 | 12.0 ± 2.6 | 11.7 ± 2.7 | 0.004 |
| Right superior pulmonary vein (mm) | 8.9 ± 1.6 | 8.4 ± 1.4 | < 0.001 | 8.9 ± 1.5 | 8.4 ± 1.4 | < 0.001 |
| Right inferior pulmonary vein (mm) | 9.2 ± 1.5 | 8.9 ± 1.5 | 0.006 | 9.3 ± 1.7 | 8.9 ± 1.5 | 0.001 |
| Left superior pulmonary vein (mm) | 8.0 ± 1.6 | 7.7 ± 1.6 | 0.023 | 8.1 ± 1.6 | 7.9 ± 1.6 | 0.089 |
| Left inferior pulmonary vein (mm) | 8.6 ± 0.9 | 8.2 ± 0.9 | < 0.001 | 8.6 ± 1.0 | 8.3 ± 1.0 | 0.023 |
All data are mean ± standard deviation