Table 1.
Diffusion-weighted imaging sequence parameters
| Name | Value |
|---|---|
| FOV (RL × AP)/orientation | 380×326 mm/transversal |
| Slice number/thickness/gap | 28/7.0 mm/0.7 mm |
| Matrix/resolution | 112×93/3.4×3.5 mm |
| Echo time | 63 ms |
| Repetition time | 1 respiratory cycle |
| Imaging time per respiration | 1,648 ms |
| EPI/half-Fourier/SENSE factor | 51/0.6/2 |
| Diffusion gradients | 3 orthogonal directions |
| Duration/distance | 22.3 ms/32.0 ms |
| b-values | 0 (2 NSA), 50 s/mm2 (2 NSA ×3 directions), and 800 s/mm2 (6 NSA ×3 directions) |
| Fat-suppression method | SPIR |
| Water–fat shift/BW | 9.2 pixel/23.6 Hz |
| BW in EPI frequency direction | 1,680.3 Hz |
| Acquisition time | ~3 min (1:12 min without gating) |
Abbreviations: AP, anterior–posterior; BW, bandwidth; EPI, echo-planar imaging; FOV, field of view; NSA, number of averages; RL, right–left; SENSE, parallel imaging with sensitivity encoding; SPIR, spectral presaturation by inversion recovery.