Table 1 MR protocol imaging parameters. PD = Proton Density, FOV = Field of View, TSE = Turbo Spin Echo, TR = Repetition Time, TE = Echo Time, NSA = Number of Signal Averages, Refoc. ctrl = Refocusing control
Parameter | T1 TSE | PD TSE | PD FS TSE | Angio GE [25] |
|---|---|---|---|---|
Scan mode | 3D | 3D | 3D | 3D |
Imaging plane | Sagittal | Sagittal | Sagittal | Transversal |
FOV | 160 mm in 3D | 160 mm in 3D | 160 mm in 3D | 160 mm in 3D |
Acquisition voxel size | 0.5\(\times\)0.6\(\times\)0.4 | 0.5\(\times\)0.6\(\times\)0.4 | 0.5\(\times\)0.6\(\times\)0.4 | 0.8\(\times\)0.8\(\times\)0.4 |
Recon voxel size | 0.4\(\times\)0.4\(\times\)0.4 | 0.4\(\times\)0.4\(\times\)0.4 | 0.4\(\times\)0.4\(\times\)0.4 | 0.4\(\times\)0.4\(\times\)0.4 |
Slices | 400 | 400 | 400 | 400 |
Sense factor | 2.5 (AP), 2 (RL) | 2.5 (AP), 2 (RL) | 2.5 (AP), 2 (RL) | 4 (AP) |
TSE factor | 30 | 100 | 100 | NA |
TFE factor | NA | NA | NA | 256 |
Shot interval | NA | NA | NA | 3233 ms |
Profile order | NA | NA | NA | Low-high |
Turbo direction | NA | NA | NA | Radial |
Flip angle | 60 refoc. ctrl | 60 refoc. ctrl | 60 refoc. ctrl | 90 |
TR | 600 ms | 3000 ms | 3000 ms | 5.4 ms |
TE | 30 ms | 30 ms | 30 ms | 2.7 ms |
NSA | 3 | 2 | 2 | 3 |
Fat suppression | No | No | SPAIR | SPIR |
Scan time | 10:10 min | 10:09 min | 10:09 min | 06:06 min |