Table 1. Parameters of REACT and CE-MRA.
| Parameters | REACT | CE-MRA |
|---|---|---|
| Acquisition orientation | Coronal | Coronal |
| K-space trajectory | Cartesian | Cartesian |
| Field of view (FH × RL × AP) (mm3) | 320×400×80 | 320×280×80 |
| Acquired voxel size (mm3) | 1.5×1.5×1.5 | 0.63×0.63×0.63 |
| Reconstructed voxel size (mm3) | 0.625×0.625×0.750 | 0.5×0.5×0.5 |
| Flip angle (°) | 15 | 40 |
| Repetition time (TR) (ms) | 4.3 | 6.1 |
| Echo time (TE, 1/2) (ms) | 1.45/2.60 | 1.96 |
| T2 preparation (ms) | 50 | n/a |
| Compressed SENSE factor | 4 | 6 |
| Temporal resolution (s) | n/a | 1 |
| Scan time (min) | 02:46 | 01:08 |
| Image reconstruction | Immediate | Real time |
AP, anterior posterior; CE-MRA, contrast-enhanced magnetic resonance angiography; FH, feet head; n/a, not available; REACT, relaxation-enhanced angiography without contrast and triggering; RL, right left; SENSE, SENSitivity Encoding.