Table 1.
MRI imaging parameters and sequences utilised in our study
| Sequence | Planes | Slice thickness (mm) | Spacing (mm) | TR (ms) | TE (ms) | Matrix | |
|---|---|---|---|---|---|---|---|
| Precontrast T1-weighted spin-echo images | Axial | 3 | 1 | 600-700 | 20 | 320 × 256 | |
| Sagittal | 5 | 0.7-1.5 | 320 × 192 | ||||
| T2-weighted fast spin-echo | Axial | 3 | 1 | 2700 | 100 | 320 × 256 | |
| Coronal | 3-5 | 1-1.5 | 320 × 256 | ||||
| T2 FLAIR* | Inversion time: 2200 ms | Axial | 3 | 0.6-1 | 9000 | 120 | 256 × 224 |
| Gradient-echo (GRE) images | Axial | 3-5 | 1 | 570 | 30 | 288 × 224 | |
| Diffusion- weighted images | b-values: 0, 50, 1000 s/mm2 | Axial | 3-5 | 0-1 | 8300 | 70 | 96 × 96 |
| Postcontrast T1-weighted spin-echo images | Axial | 3 | 1 | 600-700 | 20 | 320 × 192 | |
| Sagittal | 5 | 0.5-1 | 320 × 192 | ||||
| Coronal | 5 | 1-1.5 | 320 × 192 | ||||
| 3D FSPGR | Axial | 1-2 | 0 | 6 | 4 | 256 × 224 | |
TR – repetition time, TE – echo time, FLAIR – fluid attenuation and inversion recovery, FSPGR – fast spoiled gradient echo