Table 1 Parameters of the magnetic resonance imaging protocol
From: T2 mapping for knee cartilage degeneration in young patients with mild symptoms
Sequence | T1-sag | fspd-sag | fspd-cor | fspd-tra | T2 map |
|---|---|---|---|---|---|
Repetition time (ms) | 400 | 3000 | 3000 | 3400 | 1000 |
Echo times (ms) | 12 | 37 | 39 | 49 | 13.8, 27.6, 41.4, 55.2, 69.0 |
Field of view (mm) | 160 | 160 | 160 | 160 | 160 |
Distance factor (%) | 20 | 20 | 20 | 20 | 20 |
Number of slices | 20 | 20 | 20 | 20 | 20 |
Slice thickness (mm) | 3 | 3 | 3 | 4 | 3 |
Phase oversampling (%) | 80 | 80 | 80 | 25 | 0 |
Flip angle (deg) | 90 | 140 | 170 | 120 | 180 |
Phase resolution (%) | 70 | 80 | 70 | 100 | 100 |
Matrix | 269 × 384 | 256 × 320 | 224 × 320 | 320 × 320 | 384 × 384 |
Imaging time (min:s) | 1:48 | 2:42 | 2:24 | 2:33 | 5:19 |