MRI acquisition parameters for the 3 sequences acquired at 7T
| 3D-MP2RAGE | 2D-T2*GRE | 3D-Segmented T2*EPI | |
|---|---|---|---|
| Orientation | Axial | Axial | Axial |
| Voxel dimensions (μm) | 500 × 500 | 215 × 215 | 500 × 500 |
| Slice thickness (μm) | 500 | 1000 | 500 |
| FOV (mm) | 224 (AP) × 168 (RL) × 112 (SI) | 220 (AP) × 165 (RL) × 25 (SI) | 220 (AP) × 180 (RL) × 88 (SI) |
| TI (ms) | 800/2700 | NA | NA |
| TR (ms) | 6000 | 1300 | 52 |
| TE (ms) | 5 | 32 | 23 |
| Flip angle | 4°/5° | 50° | 10° |
| EPI factor | NA | NA | 15 |
| Scan time (min:sec) | 10:32 | 8:36 | 3:40 |
| No. of repetitions | 4 | 1 | 1 |
Note:—AP indicates anterior-posterior axis; RL, right-left axis; SI, superior-inferior axis; NA, not applicable.