Acquisition parameters for MRA sequences
| TR-CE MRA | 3D-TOF | GRE T2 | |
|---|---|---|---|
| Receive coil | Body coil | 8-Channel brain coil | 8-Channel brain coil |
| TR/TE (ms) | 4.0/1.25 | 23/3.5 | 757/16.1 |
| Flip angle | 25° | 15° | 18° |
| Acquisition plane | Coronal | Axial | Axial |
| FOV (mm) | 320 × 320 | 200 × 200 | 230 × 230 |
| Acquisition matrix | 268 × 267 | 312 × 206 | 512 × 512 |
| Section thickness (after interpolation) | 2.6 (1.3) | 1.6 (0.8) | 5 |
| Acquired voxel size (mm) | 1.2 × 1.2 × 2.6 | 0.64 × 0.97 × 1.6 | 0.45 × 0.45 × 5 |
| Reconstructed voxel size (mm) | 0.8 × 0.8 × 1.3 | 0.39 × 0.39 × 0.8 | |
| No. of sections | 77 | 87 | 24 |
| Anteroposterior coverage (mm) | 100 | ||
| k-t BLAST undersampling factor | 4 | – | – |
| No. of dynamics | 12 | 1 | – |
| Phase acquisition times | 8.7 sec | – | – |
| Total acquisition times | 1 minute 44 seconds | 2 minutes 36 seconds | 1 minute 37 seconds |