| Feature |
Requirement / Standard |
| MRI manufacturer |
GE, Siemens, Philips, Canon, and other major MRI manufacturers |
| Field strength |
1.5T or 3.0T |
| Scan protocol |
3D T1 TFE, DTI and resting state fMRI |
| Patient instructions |
- Minimize head motion
- Do not think of anything
- Keep eyes open and do not fall asleep
- Do not use headphones or other audio devices during scan
|
| Technician instructions |
- Ensure head alignment during localizer
- Do not compress anatomy/fiducials with padding; no anaesthesia masks
- Do not place tape on the forehead
|
| DTI sequence |
- One b0 baseline image
- B1000
- At least 30 and ideally 50-60 directions+ one baseline b0 scan
- FOV=25.6 cm
- Slice thickness 2mm
- 0 mm gap between slices with no overlap
- Full brain coverage
- Isotropic voxels
- Square 128x128 matrix
- 1 average/NEX
- Axial foot to head slice prescription
- DTI done before contrast images
|
| Resting state fMRI sequence |
- 3 × 3 × 3-mm voxels
- 128 volumes/run
- TE = 27 ms
- TR = 2.8 s
- Field of view = 256 mm
- Flip angle = 90˚
- Run time about 8 min
|
