Table 1.
Routine magnetic resonance (MR) parameters for 3Tesla (T) imaging of the wrist
| Sequence | Cor 3D PD FS | Cor PD | Cor PD FS | Ax PD | Ax PD FS / Ax T2 FS | Sag PD | Sag PD FS |
|---|---|---|---|---|---|---|---|
| Pixel size (mm × mm) | 0.35 × 0.35 | 0.27 × 0.35 | 0.30 × 0.32 | 0.4 × 0.4 | 0.32 × 0.44 | 0.40 × 0.51 | 0.23 × 0.32 |
| Slice thickness (mm) | 0.35 | 2 | 2 | 2 | 2 | 3 | 3 |
| Slice gap (mm) | 0 | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 |
| Number of slices | 151 | 22 | 22 | 30 | 30 | 22 | 20–30 |
| FOV (mm) | 70 | 90 | 90 | 80 | 80 | 70–80 | 70–80 |
| TE (ms) | 29–37 | 30 | 27 | 30 | 30/70 | 30 | 27 |
| TR (ms) | 1250–1400 | 3500 | 2500–3500 | 2500 | 3000/3200 | 3000 | 2500–3500 |
| BW (Hz/pixel) | 362 | 194 | 222 | 250 | 153/218 | 354 | 175 |
| Echo train length | 70–88 | 13 | 13 | 9 | 11 | 12 | 13 |
| NEX | 2 | 1 | 3 | 2 | 2 | 1 | 1 |
| Acquisition time (min) | ∼5 | ∼2.5 | ∼4 | ∼3 | ∼2.5/3 | ∼2.8 | ∼3.5 |
Ax, axial; Cor, coronal; Sag, sagittal; 3D, 3-dimensional; PD, proton-density; FS, fat-suppression; FOV, field-of-view; TE, echo time; TR, repetition time; BW, bandwidth; NEX, number of excitations.