Table 5.
MRI parameters.
| Hospital A | Hospital B | |||||
|---|---|---|---|---|---|---|
| Sequence | TSE T2WI | DLR T2WI | DWI | TSE T2WI | DLR T2WI | DWI |
| TR (ms) | 2500–3000 | 2500–3000 | 4100–5300 | 2500–3000 | 2500–3000 | 5200–6000 |
| TE (ms) | 100–103 | 103 | 69–85 | 103 | 103 | 76 |
| Field of view (mm) | 200 × 200 | 180 × 180 |
220 × 220 or 200 × 180 |
180 × 180 | 180 × 180 | 200 × 180 |
| Matrix | 320 × 320 | 320 × 320 |
120 × 108 or 220 × 198 |
320 × 320 | 320 × 320 | 120 × 108 |
| Flip angle (°) | 136–148 | 136 | 90 | 136 | 136 | 90 |
| Slice thickness (mm) | 3 | 3 | 3 | 3 | 3 | 3 |
| Gap | 0 | 0 | 0 | 0 | 0 | 0 |
| B values (s/mm2) | - | - | 0, 100, 1000, 1500 | - | - | 0, 100, 1000, 1500 |
| NEX | 2 | 1 | 5, 5, 10, 10 | 2 | 1 | 2, 2, 9, 9 |
T2WI, T2-weighted imaging; TSE, turbo spin echo; DWI, diffusion-weighted imaging; TR, repetition time; TE, echo time; NEX, number of excitations.