Table 1 Parameters of the imaging protocol of the brain and the optical nerves.
Sequence | T2 TSE FS | EP2D DWI | T2 TIRM DARK FLUID | SWI | T1 FL2D | T1 FL2D ( +) | MPR age ( +) | T1 STAR VIBE ( +) orbital | T1 TSE FS ( +) orbital |
|---|---|---|---|---|---|---|---|---|---|
Scan plane | Axial | Axial | Coronal | Axial | Axial | Axial | Sagittal | Axial | Coronal |
Voxel size, mm | 0.4 × 0.4 × 3.0 | 1.2 × 1.2 × 3.0 | 0.0 × 0.4 × 4.0 | 0.0 × 0.9 × 1.0 | 0.7 × 0.7 × 5.0 | 0.7 × 0.7 × 5.0 | 1.0 × 1.0 × 1.0 | 0.8 × 0.8 × 1.0 | 0.3 × 0.3 × 2.0 |
No. slices | 48 | 48 | 38 | 120 | 30 | 30 | 192 | 64 | 24 |
TR/TE, ms | 5320/88 | 10,000/101 | 8000/94 | 27/20 | 250/2.66 | 250/2.66 | 2400/2.66 | 5.0/2.07 | 719.0/9.1 |
Averages | 2 | 4 | 1 | 1 | 2 | 2 | 1 | 2 | 3 |
FoV, mm | 230 | 230 | 230 | 220 | 230 | 230 | 256 | 150 | 150 |
Flip angle, degrees | 150 | 150 | 15 | 70 | 70 | 8 | 9.0 | 120 | |
Matrix | Auto (triple) | Auto (triple) | Auto (triple) | Auto (triple) | Auto (triple) | Auto (triple) | Auto (triple) | Auto (triple) | Auto (triple) |
