Table 1.
A summary of the main technical parameters of the Black Bone MRI sequences applied in the study, namely the 3D Double-Echo Steady-State (DESS) and 3D Short-Tau Inversion Recovery (STIR) MRI protocols.
| Black Bone MRI | 3D Double-Echo Steady-State (DESS) | 3D Short-Tau Inversion Recovery (STIR) |
|---|---|---|
| Acquisition time | 12:24 min:s | 7:04 min:s |
| FOV | 242 × 242 × 78 mm3 | 210 × 242 × 78 mm3 |
| Acquisition matrix | 320 × 320 × 78 | 256 × 243 × 64 |
| Acquisition voxel | 0.75 × 0.75 × 0.75 mm3 | 0.82 × 0.86 × 1.0 mm3 |
| Number of signal averages | 1 | 1.4 |
| TR | 11.16 ms | 3300 ms |
| TE1 | 4.21 ms | 197 ms |
| TE2 | 7.7 ms | – |
| TI | – | 220 ms |
| WFS (pix)/bandwidth (Hz) | 1/355 | 1/630 |
| Fat suppression | Selective water excitation | None |