Imaging parameters of DW ZOOM-EPI
| DW ZOOM-EPI on 1.5T MRI | DW ZOOM-EPI on 3T MRI | |
|---|---|---|
| Sequence type | sshot SE-EPI | sshot SE-EPI |
| Slice orientation | Transversal | Transversal |
| FOV (RL ×AP) | 97 × 92 mm2 | 180 × 64 mm2 |
| Acquisition voxel size (RL × AP × FH) | 1.2 × 1.2 × 3.0 mm3 | 1.0 × 1.15 × 3.0 mm3 |
| No. of slices | 19 | 25 |
| TR | 3545 ms | 2899 ms |
| TE | 85 ms | 64 ms |
| Flip angle | 90° | 90° |
| Half scan factor | 0.6 | 0.6 |
| Bandwidth | 11.5 Hz/pixel | 12.9 Hz/pixel |
| EPI factor | 75 | 81 |
| No. of signal averages | 5 | 2 |
| Acquisition duration (minutes:seconds) | 05:39 | 03:04 |
| Fat suppression | SPAIR | SPIR |
| b-values | 0, 1000 s/mm2 | 0, 1000 s/mm2 |
Note:—SPIR indicates spectral presaturation with inversion recovery; SPAIR, spectral attenuated inversion recovery; RL, right left; AP, anterior posterior; FH, feet head.