MPRAGE (3D T1) | SPACE (3D T2) | IR-SPACE (3D FLAIR) | rs-fMRI | 3D T2*/SWI | Diffusion | Field mapping | ASL | |
---|---|---|---|---|---|---|---|---|
Voxel resolution (mm3) | 1.1 × 1.1 × 1.1 | 1.1 × 1.1 × 1.1 | 1.1 × 1.1 × 1.1 | 3 × 3 × 4 | 0.86 × 0.86 × 1.5 | 2.5 × 2.5 × 2.5 | 3 × 3 × 3 | 3.75 × 3.75 × 4 |
Matrix size | 256 × 256 × 208 | 256 × 256 × 176 | 256 × 256 × 176 | 64 × 64 × 36 | 256 × 192 × 96 | 96 × 96 × 58 | 64 × 64 × 55 | 64 × 56 × 36 |
FoV (read x PE) (mm) | 282 × 282 | 282 × 282 | 282 × 282 | 192 × 192 | 220 × 165 | 240 × 240 | 192 × 192 | 240 × 210 |
Slice coverage (mm) | 229 | 194 | 194 | 144 | 144 | 145 | 165 | 144 |
Orientation | Sagittal | Sagittal | Sagittal | Transverse obl | Transverse obl | Transverse obl | Transverse obl | Transverse obl |
PE direction | A > > P | A > > P | A > > P | A > > P | R > > L | A > > P | R > > L | A > > P |
TE (ms) | 2.92 | 409 | 402 | 30 | 4.92; 9.84; 19.2 | 103 | 4.92; 7.38 | 20.26 |
TR (ms) | 2000 | 3200 | 5000 | 2020 | 27 | 8000 | 688 | 4000 |
Flip angle (°) | 8 | Variable | Variable | 75 | 15 | 90/180/180 | 60 | 90/160/160/160... |
Acq bandwidth (Hz/pix) | 240 | 751 | 751 | 2112 | 400/400/140 | 1578 | 260 | 2298 |
Parallel imaging | ×2 | ×2 | ×2 | ×2 | ×2 | ×2 | None | None |
Total scan time | 5 min 06 s | 4 min 43 s | 6 min 27 s | 9 min 27 s | 3 min 48 s | 10 min 16 s; 5 min 28 s | 1 min 31 s | 5 min 20s |
Other sequence-specific parameters | Water selective excitation pulse TI = 870 ms | Water selective excitation pulse Turbo factor 141 Slice TF 2 | Water selective excitation pulse Turbo factor 141 Slice TF 2 T2 sel IR TI = 1800 ms | Fat saturation 277 volumes | \( \raisebox{1ex}{$7$}\!\left/ \!\raisebox{-1ex}{$8$}\right. \) partial Fourier along PE1/2 Flow comp for first TE Monopolar read gradient | 2 non-zero b- values: b = 2000 s/mm2 64 dir b = 700 s/mm2 32 dir 12 x b = 0 s/mm2 interspersed ¾ partial Fourier | 2D multi-slice dual gradient echo | 10 averages pCASL labeling 4-shot 3D GRASE Turbo Factor 14 EPI Factor 28 Labeling duration 1.8 s Post-labeling delay 1.8 s Background suppression |