Table 2 MRI Protocol Parameters.
From: A longitudinal resource for population neuroscience of school-age children and adolescents in China
CKG Sample | PEK Sample | ||
|---|---|---|---|
Scanner | Siemens Trio Tim, 3.0 T | GE Discovery MR750, 3.0 T | |
Head Coil | 12-channel | 8-channel | |
r-fMRI | r-fMRI | ns-fMRI | |
Sequence | EPI | Gradient Echo | Gradient Echo |
Time Acquisition (min:sec) | 7 m:45 s | 6 m | 6 m:06 s |
Slices | 38 | 33 | 33 |
% FOV Phase | 1 | 1 | 1 |
Resolution (mm) | 3 × 3 × 3 | 3.5 × 3.5 × 4.2 | 3.5 × 3.5 × 4.2 |
matrix | 72 × 72 | 64 × 64 | 64 × 64 |
TR (ms) | 2500 | 2000 | 2000 |
TE (ms) | 30 | 30 | 30 |
Flip Angle (°) | 80 | 90 | 90 |
Notes | |||
T1-weighted | T1-weighted | DTI | |
Sequence | 3D MPRAGE | 3D SPGR | Spin Echo |
Time Acquisition (min:sec) | 8 m:19 s | 4 m:41 s | 10 m:54 s |
Slices | 176 | 176 | 75 |
% FOV Phase | 1 | 1 | 1 |
Resolution (mm) | 1 × 1 × 1 | 1 × 1 × 1 | 2 × 2 × 2 |
matrix | 256 × 256 | 256 × 256 | 112 × 112 |
TR (ms) | 2600 | 6.7 | 8724 |
TE (ms) | 3.02 | 2.9 | 81.4 |
Flip Angle (°) | 8 | 12 | 90 |
Notes | 900 ms TI | 450 ms TI | 64 directions, 10 b0 images, b = 1000 s/mm2 |
