Table 1.
Anatomical and functional scan parameters for the ADHD 200 Sample datasets used in the study. In all cases, the anatomical scans were acquired through a T1-weighted 3D magnetization-prepared rapid gradient echo (MPRAGE) sequence and the functional scans were acquired through a gradient echo-planar imaging (EPI) sequence.
| Scan | Parameter | NeuroImage | New York University | Peking University |
|---|---|---|---|---|
| Anatomical (MPRAGE) | TR (ms) | 2730 | 2530 | 2530 |
| TE (ms) | 2.95 | 3.25 | 3.39 | |
| TI (ms) | 1000 | 1100 | 1100 | |
| FA (deg) | 7° | 7° | 7° | |
| FOV (mm) | 256 | 256 | 256 | |
| Slice (mm) | 1.00 | 1.33 | 1.33 | |
| Functional (EPI) | TR (ms) | 1960 | 2000 | 2000 |
| TE (ms) | 40 | 15 | 30 | |
| FA (deg) | 80° | 90° | 90° | |
| FOV (mm) | 224 | 240 | 200 | |
| No. Slices | 37 | 33 | 33 | |
| Slice (mm) | 3.0 | 4.0 | 3.5 | |
| Voxel (mm) | 3.5 × 3.5 × 3.0 | 3.0 × 3.0 × 4.0 | 3.1 × 3.1 × 3.5 | |
| Brain volumes | 261 | 176 | 236 |