Table 1.
MRI acquisition protocol.
| Parameters | MPRAGE (3D T1WI) | Enhanced 3D T1WI | T2WI | FLAIR | DWI | DSC-PWI | 1H-MRS |
|---|---|---|---|---|---|---|---|
| Repetition time (ms) | 1630 | 1630 | 4500 | 6000 | 6000 | 1640 | 2000 |
| Echo time (ms) | 2.3 | 2.3 | 105 | 81 | 93 | 30 | 135 |
| Flip angle | 8° | 8° | 150° | 90° | 90° | 90° | 150° |
| Slice thickness (mm) | 1 | 1 | 5 | 5 | 3 | 5 | 5 |
| In-plane resolution (mm) | 0.5 × 1 | 0.5 × 1 | 0.5 × 0.5 | 0.7 × 0.7 | 1.8 × 1.8 | 1.7 × 1.3 | 0.5 × 0.5 |
| Acquisition time (s) | 187 | 200 | 58 | 62 | 206 | 105 | 394 |
| Directions | - | - | - | - | 30 | - | - |
Abbreviations: MPRAGE, magnetization-prepared rapid acquisition gradient echo.