Table 1. 7 Tesla imaging protocol.
| MPRAGE | MP2RAGE | T2-TSE | DWI | T2-TSE | TOF | |
|---|---|---|---|---|---|---|
| Orientation | Coronal oblique | Axial | Coronal oblique | Coronal oblique | Axial | Coronal oblique |
| Scan time (min:s) | 7:40 | 8:08 | 6:50 | 9:19 (18:38 a ) | 6:50 | 10:13 |
| Voxel size (mm 3 ) | 0.7 × 0.7 × 0.7 | 0.7 × 0.7 × 0.7 | 0.4 × 0.4 × 2.0 | 1.05 × 1.05 × 1.05 | 0.4 × 0.4 × 2.0 | 0.35 × 0.26 × 0.4 |
| Slice number (slabs) | 224 | 240 | 60 | 66 | 55 | 240(4) |
| FOV (mm 2 ) | 225 × 169 | 224 × 168 | 200 × 168 | 210 × 210 | 200 × 168 | 200 × 170 |
| 2D/3D | 3D | 3D | 2D | 2D | 2D | 3D |
| TR (ms) | 3,000 | 6,000 | 6,000 | 7,200 | 6,000 | 18.0 |
| TE (ms) | 4.1 | 3.62 | 59 | 67.6 | 59 | 5.58 |
| TI (TI2; ms) | 1,050 | 1,050 (3,000) | N/A | N/A | ||
| Flip angle (2nd flip angle; degree) | 7 | 5(4) | 180 | 180 | 180 | 20 |
| Resolution | 320 × 240 | 320 × 240 | 512 × 432 | 200 × 200 | 512 × 432 | 768 × 491 |
| Directions | N/A | N/A | N/A | 64 | N/A | N/A |
Abbreviations: 2D, two-dimensional; 3D, three-dimensional; DWI, diffusion-weighted imaging; FOV, field of view; MPRAGE, magnetization prepared rapid acquisition with gradient echo; N/A, not available; T2-TSE, T2-weighted turbo spin echo; TE, echo time; TI, inversion time; TOF, time of flight; TR, repetition time.
a
Diffusion was acquired with both anterior-posterior and posterior–anterior readout directions.