Table 1.
Imaging parameters of various magnetic resonance images sequences used during study
| T2 HASTEα | SPAIRβ | 3D FLASHχ | TRUFIδ | BLADEε | ||
|---|---|---|---|---|---|---|
| Axial | Coronal | |||||
| TR/TE* (ms) | 500/39 | 1000/9 | 500/39 | 2.6/0.94 | 448/144 | 2500/63 |
| Slice thickness (mm) | 5 | 6 | 5 | 2.2 | 5 | 6 |
| Slice per station (n) | 30 | 25 | 30 | 112 | 30 | 30 |
| FOV (mm) | 320 | 350 | 320 | 350 | 320 | 320 |
| Acquired voxel size (mm3) | 1.3 × 1.3 × 5 | 1.1 × 1.1 × 6 | 1.3 × 1.3 × 5 | 1.2 × 1.2 × 2.2 | 0.6 × 0.6 × 0.6 | 1.3 × 1.3 × 6 |
| Bandwidth/pixel (Hz) | 781 | 781 | 781 | 640 | 1028 | 501 |
| Signal averages (n) | 2 | 1 | 2 | 1 | 2 | 1 |
| Flip angle (degree) | 146 | 150 | 148 | 20 | 70 | 150 |
| Acquisition time | 30 sec | 30 sec | 30 sec | 16 sec | 27 sec | 72 sec |
*
Repetition time/Echo time, FOV – field of view.
α
Half-Fourier acquisition single-shot turbo spin-echo.
β
Spectrally attenuated inversion recovery.
χ
3-Dimensional fast low-angle shot.
δ
True fast imaging with steady-state free precession.
ε
Proprietary name for periodically rotated overlapping parallel lines with enhanced reconstruction