Table 1.
Scanner information and parameters
| 1.5T | 3T | |
|---|---|---|
| Coil: | Spinal phased array | Spinal phased array |
| Gradient strength (max) | 23 mT/m | 20 mT/m |
| Model Number | 5351 | 9900983 |
| Number of channels | 4 | 8 |
| Manufacturer | Philips | General Electric |
| Interleaving | No | Yes |
| Cardiac gating | No | No |
| Motion compensation | Yes | Yes |
| Sequence | T2 fast spin echo | T2 fast spin echo |
| Field of view (cm) | 24 × 24 | 24 × 19 |
| Matrix size | 256 × 256 | 256 × 256 |
| Slice thickness (mm) | 3 (no gap) | 3 (no gap) |
| Repetition time (TR) (milliseconds) | 9189 | 6116.66 |
| Echo time (TE) (milliseconds) | 100 | 110.24 |
| Echo train length | 40 | 12 |
| Number of signal averages | 2 | 2 |
| Flip angle (degrees) | 90 | 90 |
| Pixel size (mm) | .898 × .898 | .937 × .937 |
| Total acquisition time (range) | 18.5 – 20 minutes | 22.5 – 32 minutes |