TABLE 1.
Summary of acquisition parameters of different experiments
| Parameters | Ex0 (to validate the method) | Ex1 (parameter selection) | Ex2 (four-shot vs single-shot with R = 3) | Ex3 (different resolutions) | Ex4 (more directions) | Ex5 (high b-value) | |
|---|---|---|---|---|---|---|---|
| TR/TE (ms) | 3266/70 | 3375/50 | 2278/51 | 2478/64 | 2627/53, 2759/54, 2993/57 | 2853/53 | 2908/59 |
| Effective echo spacing (μs) | 334 | 264 | 245 | 324 | 264, 281, 310 | 264 | 245 |
| Scan time (min) | 6:45 | 08:09 | 22:58 | 24:58 | 13:21, 14:01, 15:13 | 28:46 | 14:47 |
| In-plane resolution (mm) | 2 | 0.9 | 1 | 0.9, 0.8, 0.7 | 0.9 | 1 | |
| Slice thickness (mm) | 2 | 0.9 | 1 | 0.9, 0.8, 0.7 | 0.9 | 1 | |
| FOV (cm) | 20 | 20 | 18.4 | 20 | 20 | 20 | |
| Number of slices | 12 | 14 | 10 | 11 | 12 | 10 | |
| Partial Fourier factor | 1 | 0.61 | 0.67 | 0.75 | 0.64, 0.63, 0.61 | 0.64 | 0.66 |
| Number of directions | 60 | 30 | 150 | 75 | 150 | 75 | |
| Nex | 1 | 1 | 1 | 4 | 1 | 1 | 1 |
| b-value | 2000 | 1000 | 1000 | 1000 | 1000 | 2000 | |
| Number of subjects | 1 | 1 | 1 | 1 | 2 | 2 | |