Table 1.
Sequences in MRI protocol
| Parameter | Axial T2 2D FSE | DWI | DKI | MTI |
|---|---|---|---|---|
| TR (ms) | 3000-5000 | 4000 | 6000 | 24 |
| TE (ms) | 99-106 | 70–75 | 94 | 2.4 / 4.8 |
| Averages | 3 | 8 | 6 | 1 |
| Section thickness (mm) | 3 | 4 | 3.6 | 4 |
| Section gap (mm) | 1 | 0 | 0.4 | 0 |
| FOV (mm) | 220 × 220 | 280 × 280 | 280 × 280 | 220 × 220 |
| Matrix | 384 × 288 | 128 × 128 | 128 × 96 | 192 × 160 |
| Resolution (mm2) | 0.6 × 0.8 | 2.2 × 2.2 | 2.2 × 2.9 | 1.15 × 1.38 |
| Receiver bandwidth (± kHz) | 50 | 111 | 111 | 31 |
| ASSET factor | No ASSET | 2 | 2 | No ASSET |
| Time | 4:39 | 2:58 | 11:30 | 2:50 |
| Other | ETL 16 No phase wrap |
b-values 0, 1400 s/mm2 | b-values 150, 450, 800, 1150, 1500 s/mm2 | Flip angle 5° |
FSE, fast spin echo; EPI, echo planar imaging; DWI, diffusion-weighted imaging; FOV, field of view; ETL, echo train length; DKI, diffusion kurtosis imaging; MTI, magnetisation transfer imaging