Imaging parameters for DWI sequences
| FOCUS DWI | EPI DWI | |
|---|---|---|
| TR (ms) | 2200 | 2200 |
| TE (ms) | Minimum | Minimum |
| B-value (s/mm2) | 0, 500 | 0, 500 |
| Diffusion directions | All | All |
| Frequency-encoding direction | S/I | S/I |
| FOV (cm) | 16 × 4.8 | 24 × 24 |
| Matrix size | 128 × 38 | 160 × 160 |
| NEX for B0 | 4 | 4 |
| NEX for b=500 | 12 | 12 |
| Slice thickness (mm) | 2.0 | 2.0 |
| Intersection gap (mm) | 0 | 0 |
| Spatial resolution (mm3) | 1.25 × 1.26 × 2 | 1.5 × 1.5 × 2 |
| Acquisition time (min:s) | 01:30 | 01:30 |
Note:—S/I indicates superior/inferior.