Table 1.
MRI Acquisition Parameters
| Parameters | T1-Weighted | T2-Weighted | Diffusion-Weighted | R2* |
|---|---|---|---|---|
| Pulse sequence | Rapid acquisition rapid echo with variable repetition time (RARE-VTR) | Multislice multiecho (MSME) | Echo planar | Multigradient echo (MGE) |
| Respiratory gating | No | No | No | Yes |
| Repetition time (ms) | 193.44, 478.4, 878.44, 1555.502, 5000 | 2500 | 3000 | 1500 |
| Echo time (ms) | 6.16 | 13 TEs from 7.4 to 98.02 | 16.81 | First TE 3.5 ms with 4-ms echo spacing |
| Field of view (mm) | 30 × 30 | 30 × 30 | 30 × 30 | 30 × 30 |
| Matrix | 256 × 256 | 256 × 256 | 128 × 128 | 256 × 256 |
| Number of signal averages | 1 | 1 | 4 | 1 |
| b values (s/m2) | Not applicable | Not applicable | 100, 250, 500, 750, 1000 | Not applicable |
| Spatial resolution (mm/voxel) | 0.117 × 0.117 | 0.117 × 0.117 | 0.234 × 0.234 | 0.117 × 0.117 |
| Slice thickness (mm) | 1 | 1 | 1 | 1 |