Table 1 Imaging parameters of 3 T MR arthrogram
From: Initial experience with 3D isotropic high-resolution 3 T MR arthrography of the wrist
Mode | 3D | 2D | 2D | 2D |
|---|---|---|---|---|
Sequence | Cor PD | Cor T1 | Cor PD | Cor PD |
Fat saturation | SPIR | SPIR | SPIR | None |
Image matrix | 200x200 | 200x198, 240x168 | 268x250 | 392x284, 296x234 |
Slices | 151 | 20–22 | 20 | 20 |
FOV (mm) | 70 | 70 | 70 | 70 |
Slice thickness (mm) | 0.35 | 2 | 2 | 2 |
Slicegap (mm) | 0 | 0.2 | 0.2 | 0.2 |
TE (ms) | 28.3 | 20 | 27 | 27–30 |
TR (ms) | 1400 | 600 | 3499–4083 | 3181–3500 |
BW (Hz/pixel) | 179–417 | 169–179 | 184–207 | 184–207 |
Echo train length | 70–88 | 3 | 13 | 13 |
NEX | 2 | 1 | 3 | 2 |
Parallel imaging | SENSE | SENSE | SENSE | SENSE |
Acquisition time (min) | 5–5.7 | 3.5 | 6 | 2.2–3.8 |