Table 2.
The scanners specifications and imaging parameters for the 3 T group
| Centre | D | E | F | G | H |
|---|---|---|---|---|---|
| MR scanner | GE 3 T HD | GE 3 T HDx | Siemens 3 T Tim Trio | Siemens 3 T Tim Trio | Philips 3 T Intera-Achieva |
| Head coil | 8-channel | 8-channel | 8-channel | 12-channel | 8-channel |
| Acceleration factor | No | ASSET factor 2 | No | No | SENSE factor 2 |
| TR (ms) | 6.5 | 7.0 | 9.0 | 9.4 | 8.2 |
| TE (ms) | 1.50 | 2.85 | 2.98 | 4.66 | 3.80 |
| TI (ms) | 500 | 650 | 900 | 900 | 885 |
| Flip angle (°) | 12 | 8 | 9 | 8 | 8 |
| Image size (voxels) | 260 × 260 × 160 | 260 × 260 × 160 | 256 × 256 × 160 | 256 × 256 × 160 | 256 × 256 × 160 |
| Voxel size (mm3) | 1.1 × 1.1 × 1 | 1.1 × 1 × 1 | 1 × 1 × 1 | 1 × 1 × 1 | 1 × 1 × 1 |
TR, TE, and TI represent Repetition Time, Echo Time, and Inversion Time, respectively.