Table 1.
Scanning parameters for each pulse sequence used in this study
| Pulse sequence | TR (ms) | TE (ms) | FoV (cm) | Acquisition and reconstruction matrix | Voxel size (mm) | Slices | NEX | # dir. | b‐value (s/mm2) | Scan time |
|---|---|---|---|---|---|---|---|---|---|---|
| FSPGR | 5 | 2.3 | 32 | 512 × 512 | 0.625 × 0.625 × 1 | 206 | 3 | ‐ | ‐ | 10:34 |
| IDEAL | 1974 | 160 | 25.6 | 256 × 256 | 1 × 1 × 1 | 186 | 1 | ‐ | ‐ | 14:02 |
| DTI | 10 000 | 46 | 19.2 | 128 × 128 | 1.5 × 1.5 × 3 | 82 | 1 | 45 | 400 | 7:50 × 2 |
Abbreviations: avg., averages; dir., directions; DTI, diffusion tensor imaging; FoV, field of view; FSPGR, fast spoiled‐gradient echo; IDEAL, iterative decomposition of water and fat with echo asymmetry and least‐squares estimation; TE, excitation time; TR, repetition time.