Acquisition parameters for MR imaging sequences in the MS protocol
| Sequence | Plane | TR (ms) | TE (ms) | TI (ms) | Image Matrix | FOV (mm) | Section (mm) | Scan Time (min) |
|---|---|---|---|---|---|---|---|---|
| PSIR | Axial | 4300 | 13 | 400 | 256 × 256 | 240 | 3 | 4.0 |
| DIR | Axial | 15,000 | 25 | 3400/325 | 512 × 512 | 240 | 3 | 6.5 |
| Dual-FSE | Axial | 6800 | 10/90 | – | 256 × 256 | 240 | 3 | 6.0 |
| FLAIR | Axial | 10,000 | 80 | 2600 | 256 × 256 | 240 | 3 | 3.0 |
Note:—MS indicates multiple sclerosis; PSIR, phase-sensitive inversion recovery; DIR, double inversion recovery; FSE, fast spin-echo; FLAIR, fluid-attenuated inversion recovery; FOV, field of view.