Table 1.
MRI acquisition parameters recommended by the phantom manufacturer, and those used on each scanner. Note differences due to limitations in different scanners. Note: The dashes (–) mean the recommended parameters were used.
| Parameters recommended by phantom manufacturer | Siemens Aera, (all centers) | Prisma | Sola | Skyra | Espree | Unity | Ingenia | GE PET/MR | |
|---|---|---|---|---|---|---|---|---|---|
| Seq. | GRE | – | – | – | – | – | – | – | – |
| FoV (mm × mm) | 500 × 500 | – | – | – | – | 450 × 450 | – | 501 × 375.5 | – |
| Flip angle | 20° | – | – | – | – | – | – | – | – |
| Number of slices | 256 | – | – | – | – | – | 205 | 205 | – |
| Slice thickness (mm) | 1.95 | – | – | – | – | 1.75 | – | – | – |
| Slice gap (mm) | 0.39 | – | – | – | – | 0.35 | 0 | 0 | 0 |
| phase-encoding direction | A ≫ P | – | – | – | – | – | – | – | – |
| TR (ms) | 6.2 | – | 4.4 | 5.1 | 5 | 5 | 5 | 5 | 3.8 |
| TE (ms) | 2.18 | – | 1.58 | 1.81 | 1.78 | 2.39 | 2.5 | – | 1.3 |
| Voxel size (mm3) | 1.0 × 1.0 × 2.0 | – | – | – | – | – | – | – | – |
| Pixel BW (Hz/Pix) | 490 | – | – | 488 | – | – | – | – | – |