Table I. Data Acquisition Parameters.
| Data Set | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|
|
| |||||||
| Orientation* | Ax | Ax | Ax | Ax | Ax | Sag | Ax |
| Slice acceleration | 1 | 6 | 3 | 1 | 2 | 5 | 2 |
| In-plane acceleration | 1 | 1 | 2 | 1 | 1 | 1 | 1 |
| Partial Fourier | no | yes | no | no | no | no | no |
| FOV (cm) | 19.2 | 20.0 | 20.0 | 20.0 | 36.0 | 36.0 | 36.0 |
| In-plane resolution (mm) | 2.0 | 2.0 | 2.0 | 2.0 | 3.6 | 3.6 | 3.67 |
| Slice thickness (mm) | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Echo time (ms) | 2.48 | 13.9 | 17.6 | 32.3 | 21.7 | 21.7 | 30.0 |
| Repetition time (s) | 0.6 | 1.0 | 1.3 | 6.6 | 3.3 | 1.2 | 1.9 |
| Flip angle (degrees) | 90 | 62 | 68 | 90 | 85 | 54 | 77 |
| Number of reconstructed slices | 75 | 66 | 69 | 72 | 72 | 85 | 77 |
| Simultaneous slice gap (mm) | - | 22 | 46 | - | 72 | 34 | 54 |
| CAIPI shift (FOVy) | - | 1/3 | 1/4 | - | - | 1/3 | 1/2 |
| Readout direction* | L/R | L/R | L/R | L/R | L/R | S/I | L/R |
*
Ax: Axial; Sag: Sagittal; L/R: left-right; S/I: superior-inferior.