Table 1.
The main parameters of MRI protocols
| Protocols | TR/TE (ms) | FOV (mm2) | Matrix | Thickness (mm) | Gap (mm) | Slices | Acceleration factor | b-values (s/mm2) | Averages | Readout segments | Scan time |
|---|---|---|---|---|---|---|---|---|---|---|---|
| T1W TSE | 680/20 | 220 × 220 | 180× 256 | 4 | 0.8 | 30 | 3 | – | 2 | – | 2′2” |
| T2W TSE | 7500/101 | 200 × 200 | 320 × 320 | 4 | 0.4 | 20 | 2 | – | 2 | – | 3′9” |
| SS-EPI | 3000/66 | 176 × 220 | 72 × 90 | 4 | 0 | 16 | 2 | 0, 1000 | 1, 12 | 1 | 2’ |
| RS-EPI | 3400/63 | 156 × 260 | 102 × 170 | 4 | 0 | 16 | 2 | 0, 1000 | 1, 4 | 5 | 4′35” |
| T1W VIBE | 3.33/1.23 | 234 × 360 | 154× 192 | 3 | 0 | 30 | 4 | – | 1 | – | 16” |
Note: FOV field of view, RS-EPI Readout segmented echo-planar imaging, SS-EPI Single-shot echo-planar imaging, TR/TE repetition time/echo time, T1W TSE T1-weighted turbo spin echo, T1W VIBE T1-weighted volumetric interpolated breath-hold examination, T2W TSE T2-weighted turbo spin echo