MR imaging sequence parameters
| Pulse Sequence | ||||||
|---|---|---|---|---|---|---|
| System | FLAIR | T2 TSE | T1 SE | |||
| 1.5T | 3T | 1.5T | 3T | 1.5T | 3T | |
| Field of view (mm) | 230 | 230 | 230 | 230 | 230 | 230 |
| Matrix | 256 | 256 | 256 | 256 | 256 | 256 |
| Section thickness (mm) | 5 | 5 | 5 | 5 | 5 | 5 |
| Measured voxel size (mm) | 0.90/0.90/5 | 0.90/0.90/5 | 0.90/0.90/5 | 0.90/0.90/5 | 0.90/0.90/5 | 0.90/0.90/5 |
| Turbo factor | 29 | 38 | 23 | 16 | ||
| Number of signals averaged | 2 | 1 | 2 | 1 | 2 | 1 |
| Repetition time (ms) | 6000 | 12 000 | 3500 | 4100 | 500 | 500 |
| Echo time (ms) | 110 | 140 | 100 | 100 | 12 | 12 |
| Inversion time (ms) | 2000 | 2850 | ||||
| Acquisition time (min:s) | 3:00 | 4:00 | 2:27 | 2:19 | 3:34 | 3:27 |
Note:— FLAIR indicates fluid-attenuated inversion recovery; TSE, turbo spin-echo; SE, spin-echo.