Table 1. Acquisition parameters for MRI measurements.
| CE-MRA | |||
| Parameter | TOF | First-pass | Equilibrium-phase |
| Scan mode | Multi 2D | 3D | 3D |
| Technique | TFE | FFE | FFE |
| TR (ms) | 7.20 | 4.90 | 12.0 |
| TE (ms) | 3.20 | 1.48 | 1.90 |
| Flip angle (°) | 50 | 40 | 20 |
| FOV (mm) | 410 | 400 | 470 |
| Voxel dimensions (acquired) (mm) | 1.60×2.34×3.00 | 1.00×1.36×2.00 | 0.84×0.84×1.00 |
| Voxel dimensions (reconstructed) (mm) | 1.60×1.60×3.00 | 0.78×0.78×1.00 | 0.84×0.84×1.00 |
| Number of slices | 100a | 100a | 200a |
| Scan direction | Axial | Coronal | Coronal |
| Parallel imaging acceleration (Factor/direction) | No | Yes (2/R-L) | Yes (2/R-L) |
| NSA | 1 | 1 | 1 |
| Scan duration (min:sec) | 3:37a | 0:33a | 4:39a |
a
The number of slices, and therefore scan duration, varied from subject to subject, depending on the dimensions of the abdomen.
TFE, turbo field echo; FFE, fast field echo (gradient echo); FOV, field of view; NSA, number of signal averages.