Table 1. MR Imaging Parameters.
| Parameter | Isotropic 3D T2W-TSE (SPACE) | 2D TSE (Conventional) | ||
|---|---|---|---|---|
| Sagittal T2 | Axial T2 | Sagittal T1 | ||
| Repetition time (ms) | 1500 | 4000 | 4000 | 845 |
| Echo time (ms) | 106 | 69 | 68 | 10 |
| Echo train length | 113 | 13 | 13 | 3 |
| Intersection gap (mm) | 0 | 0 | 0 | 0 |
| Voxel size (mm) | 0.6 × 0.6 × 0.6 | 0.5 × 1.1 × 3.0 | 0.3 × 0.6 × 4.0 | 0.5 × 1.1 × 3.0 |
| Slice thickness (mm) | 0.6 | 3 | 4 | 3 |
| Field of view (mm) | 270 × 270 | 256 × 280 | 153 × 153 | 256 × 280 |
| Acquisition matrix | 450 × 450 | 512 × 256 | 512 × 256 | 512 × 256 |
| Bandwidth (Hz/pixel) | 385 | 250 | 250 | 250 |
| Acquisition time | 6 min 54 sec | 2 min 44 sec | 4 min 56 sec | 2 min 25 sec |
MR = magnetic resonance, SPACE = sampling perfection with application optimized contrasts using different flip angle evolution, TSE = turbo spin-echo, T2W = T2-weighted, 2D = two-dimensional, 3D = three-dimensional