Table 3.
Imaging parameters of the MRI data
| Parameter | Value |
|---|---|
| 3D T2‐FLAIR | |
| TE/TR (ms) | 356/4800 |
| T2 prep TE (ms) | 125 |
| Matrix/FOV | 256 × 256 × 321/250 × 250 × 180 |
| Voxel size (mm) | 0.98 × 0.98 × 1.12 |
| IR delay (ms) | 1650 |
| Scan duration (min) | 5:07 |
| 2D PC‐MRI | |
| TE/TR (ms) | 5.5/15 |
| Flip angle (degrees) | 15 |
| Matrix/FOV | 512 × 512/230 × 230 |
| Voxel size (mm) | 0.45 × 0.45 × 4 |
| Scan duration (min) | 1:02 |
| Turbo‐QUASAR | |
| TE/TR (ms) | 16/6000 |
| TI (ms) | 40, 640, …, 6340 |
| (ms) | 600 |
| Flip angle (degrees) | 35, 11.7 |
| Matrix/FOV | 64 × 64/240 × 240 |
| Voxel size (mm) | 3.75 × 3.75 × 7 |
| Width of labeling slab (L) (cm) | 15 |
| No. of sub‐boluses | 6 |
| No. of slices | 15 |
| Slice acquisition time (ms) | 36 |
| Repeats | 2 |
| Vascular crushing VENC (cm/s) | 4 |
| Scan duration (min) | 3:24 |
| PCASL | |
| TE/TR (ms) | 14/4400 |
| PLD (ms) | 1800 |
| Bolus duration (ms) | 1800 |
| Matrix/FOV | 80 × 80/240 × 240 |
| No. of slices | 19 |
| Slice acquisition time (ms) | 42.1 |
| Voxel size (mm) | 3 × 3 × 7 |
| Repeats | 140 |
| Scan duration (min) | 20:39 |
| PCASL M0 | |
| TE/TR (ms) | 14/4400 |
| Matrix/FOV | 80 × 80/240 × 240 |
| Voxel size (mm) | 3 × 3 × 7 |
| No. of slices | 19 |
| Repeats | 6 |
| Scan duration (min) | 0:26 |
FOV = field of view; IR = inversion recovery; VENC = velocity encoding.