Table 1.
Parameters of the Imaging Sequences Used in the Study.
| Sequence | T2 map sag | PD-TSE SPACE sag | T2w-TSE ax | T2w-PD-TSE cor | T1-TSE ax |
|---|---|---|---|---|---|
| Repetition time (ms) | 2,080 | 1,500 | 3,990 | 3,130 | 700 |
| Echo time (ms) | 18.0, 36.0, 54.0, 72.0, 90.0 | 44 | 91 | 30 | 33 |
| Field of view (mm) | 200 | 192 | 165 | 175 | 280 |
| Matrix | 256 × 256 | 256 × 256 | 256 × 192 | 320 × 256 | 256 × 192 |
| Voxel size (mm) | 0.8 × 0.8 × 2.0 | 0.8 × 0.8 × 0.9 | 0.9 × 0.6 × 3.0 | 0.9 × 0.7 × 3.0 | 1.6 × 1.1 × 5.0 |
| Slice thickness (mm) | 2 | 0.9 | 3 | 3 | 5 |
| Distance factor (%) | 100 | — | 10 | 10 | 10 |
| Number of slices | 20 | 96 | 38 | 30 | 15 |
| Echo trains/slice | — | — | 6 | 24 | 9 |
| Turbo factor | — | 84 | 20 | 8 | 20 |
| Examination time | 6:45 | 8:00 | 1:45 | 2:35 | 0:37 |
Magnetic resonance parameters for quantitative and morphological imaging: Sag = sagittal; map = mapping; PD = proton density; TSE = turbo spin echo; SPACE = single slab 3-dimensional TSE sequence (Sampling Perfection with Application optimized Contrasts using different flip angle Evolution); Ax = axial; Cor = coronal.