| hASL | TOF | CEMRA |
---|---|---|---|
Orientation | coronal | axial | coronal |
Acquisition type | 3D | 2D | 3D |
TR (ms) | 5.8 | 19.0 | 3.2 |
TE (ms) | 3.9 | 3.7 | 1.2 |
Flip angle (degrees) | 5 | 60 | 25 |
Field of view (mm)a | 256 × 256 | 220 × 220 | 320 × 260 |
[256-320 × 256-320] | |||
Matrix | 256 × 256 | 256 × 256 | 352 × 286 |
Slicesa | 60 [60–80] | 100 [60-120] | 80 |
In-plane resolution (mm)a | 1.0 × 1.0 | 0.9 × 0.9 | 0.9 × 0.9 |
[1.0-1.25 × 1.0-1.25] | |||
Slice thickness (mm) | 1.0 | 2.0 | 1.2 |
Partial Fourier (phase) | none | none | 6/8th |
Partial Fourier (slice) | 6/8th | none | 6/8th |
Scan timea | 4.6 [4.6–6.1] min | 4.7 [2.8–5.6] min | 19 s |
Flow Compensation | yes | yes | no |
Slice Oversampling | none | -- | 20Â % |
Bandwidth (Hz/pixel) | 349 | 465 | 590 |