Table 1.
Acquisition sequence parameters.
| Sequence | Parameters | Scan duration |
|---|---|---|
| T2w | Fast Spin Echo | 2 × 03:12.0 |
| TR=12 s | ||
| TE=156 ms | ||
| SENSE factor: axial=2.11, sagittal=2.58 | ||
| Sagittal and axial slice stacks | ||
| In-plane resolution = 0.8 × 0.8 mm2 | ||
| 1.6 mm slice thickness overlapped by 0.8 mm | ||
| 290 × 290 × 203 voxels | ||
| T1w | Inversion Recovery Fast Spin Echo | 2 × 05:45.2 |
| TR=4795 ms | ||
| TI=1740 ms | ||
| TE=8.7 ms | ||
| SENSE factor: axial=2.26, sagittal=2.66 | ||
| Resolution matched to T2w | ||
| 290 × 290 × 203 voxels | ||
| Multiband EPI (func) | Single-shot EPI | 15:03.5 |
| TE=38 ms | ||
| TR=392 ms | ||
| Flip angle=34° | ||
| MB factor=9x | ||
| 2300 vol | ||
| 2.15 mm isotropic | ||
| 67 × 67 × 45 × 2300 voxels | ||
| Single-band EPI (sbref) | Bandwidth matched readout to multiband EPI | 00:19.4 |
| TR=3871 ms | ||
| TE=38 ms | ||
| 4 vol | ||
| 67 × 67 × 51 voxels | ||
| Spin-echo EPI (field map) | Bandwidth matched readout to multiband EPI | 01:52.7 |
| TR=8040 ms | ||
| TE=63 ms | ||
| 4xAP/PA interleaved phase-encoding directions | ||
| 67 × 67 × 51 × 8 voxels | ||
| Dual-echo-time (fieldmap) | Dual-TE gradient-echo | 00:20.2 |
| TR=10 ms | ||
| TE1=4.6 ms; TE2=6.9 ms | ||
| flip angle=10° | ||
| 3 mm isotropic in-plane resolution, 6 mm slice thickness | ||
| 52 × 53 × 18 voxels |