Table 2.
Image acquisition protocol using a 3 Tesla (3 T) Siemens Skyra scanner at the Brigham and Women's Hospital.
| 3 T Brain MRI Acquisition Protocol | |||
|---|---|---|---|
| Scanner Hardware | Siemens Skyra | ||
| Scanner Software | Syngo MR D13 | ||
| Coil | 20 channel | ||
| MR Acquisition Type | 3D | ||
| Orientation | Sagittal | ||
| Number of signal averages | 1 | ||
| Sequence type | FLAIR | T2WI | T1WI |
| Number of slices | 176 | 192 | 176 |
| Voxel size (mm) | 1.0 × 1.0 × 1.0 | 0.98 × 0.98 × 1.0 | 1.0 × 1.0 × 1.0 |
| TR (ms) | 5000 | 2500 | 2300 |
| TE (ms) | 389 | 300 | 2.96 |
| TI (ms) | 1800 | N/A | 900 |
| Flip angle (degrees) | 120 | 120 | 9 |
| Parallel acceleration | 2 | 4 | 2 |
| Scan time (minutes) | 6:00 | 3:18 | 5:09 |