Table 2.
Imaging protocols. The first 101 brains were scanned using the original imaging protocol. The revised protocol incorporating a new diffusion-weighted sequence as well as a higher resolution T2 TSE sequence was used for the next 59 brains
| Original | TR (ms) | TE (ms) | Flip Angle | Resolution (mm3) | Scan Time (min) | Other parameters |
| SWI/QSM | 39 | 6.72, 12.79, 21.29, 29.79 | 15° | 0.5×0.5×0.5 | 61 | 6 averages |
| T1-Weighted | 2200 | 3.25 | 13° | 0.5×0.5×0.5 | 24 | 4 averages |
| T2 TSE | 3750 | 20, 30, 50 | 120° | 1.5×0.6×0.6 | 40 | 4 averages |
| Multi-Echo GRE | 35 | 5, 10, 15, 20, 25, 30 | 20° | 1.0×1.0×1.0 | 5 | |
| Revised | TR (ms) | TE (ms) | Flip Angle | Resolution (mm3) | Scan Time (min) | Other parameters |
| SWI/QSM | 39 | 6.72, 12.79, 21.29, 29.79 | 15° | 0.5×0.5×0.5 | 61 | 6 averages |
| T1-Weighted | 2200 | 3.25 | 13° | 0.5×0.5×0.5 | 24 | 4 averages |
| T2 TSE | 9790 | 23, 34, 68 | 120° | 0.8×0.6×0.6 | 293 | 14 averages |
| DW True FISP | 29.77 | 23.89 | 35° | 1.0×1.0×1.0 | 472 | b-value 1 = 0 s/mm2 b-value 2 = 18000 s/mm2 44 diffusion directions 8 B0 images |