Table 2.
Overview of the scanning parameters used for the five acquisition sequences and the reference study. Note (in red) that the sequence has a coarser spatial resolution compared to the other sequences. The sequence differs from in the SENSE acceleration and not in MB factor. Reference study was collected with a different set of subjects and a different scanner. It is used to compare some results from this study.
| Sequence Acronym | Ref. Study | |||||
|---|---|---|---|---|---|---|
| TR (seconds) | 2.00 | 2.45 | 1.22 | 0.70 | 0.63 | 2.00 |
| Multiband factor (MB) | none | none | 2 | 4 | 4 | none |
| SENSE acceleration (S) | 2 | 2 | 2 | 1.5 | 2 | 2 |
| Acquired voxel size (mm3) | 3 × 3 × 3.3 | 2.7 isotropic | 2.7 isotropic | 2.7 isotropic | 2.7 isotropic | 3.5 isotropic |
| Flip angle in degrees | 75 | 79 | 64 | 51 | 50 | 70 |
| Number of slices | 36 | 44 | 44 | 44 | 44 | 41 |
| Acquired volumes | 245 | 200 | 400 | 700 | 780 | 345 |
| Slice gap (mm) | 0.33 | 0.27 | 0.27 | 0.27 | 0.27 | 0.00 |
| Field of view (mm3) | 240 × 240 × 130.3 | 216 × 216 × 130.4 | 216 × 216 × 130.4 | 216 × 216 × 130.4 | 216 × 216 × 130.4 | 224 × 224 × 143 |