Parameter | T2WI site 1 | T2WI site 2 | DWIreduced site 1 | DWIreduced site 2 |
---|---|---|---|---|
Field of view (mm2) | 180 × 180 | 160 × 160 | 149 × 73 | 179 × 71 |
Imaging matrix | 320 × 320 | 320 × 320 | 90 × 44 | 140 × 42 |
Slice thickness (mm) | 3.0 | 3.0 | 3.5 | 3.5 |
Slice spacing (mm) | 3.0 | 3.3 | 3.5 | 3.5 |
Voxel size (mm3) | 0.56 × 0.56 × 3.00 | 0.50 × 0.50 × 3.00 | 1.66 × 1.66 × 3.50 | 1.28 × 1.69 × 3.50 |
No. of slices | 26 | 30 | 20 | 22 |
PAT mode | GRAPPA | GRAPPA | n/a | n/a |
Acceleration factor PE | 2 | 2 | n/a | n/a |
Echo time (ms) | 101 | 98 | 74 | 74 |
Echo train length | 25 | 17 | 38 | 42 |
Time to repeat (ms) | 7500 | 7400 | 4500 | 4500 |
Bandwidth (Hz/px) | 200 | 180 | 1500 | 1190 |
b value (s/mm2) | n/a | n/a | 50, 400, 800 | 50, 800 |
Number of excitations | 3 | 2 | 2, 5, 12 (per b value) | 4, 16 (per b value) |
Acquisition time (min:s) | 04:22 | 04:38 | 04:32 | 04:44 |
Flip angle | 160° | 120° | 90° | 90° |
Percent sampling | 100 | 100 | 100 | 75 |
Percent phase field of view | 100 | 100 | 48.9 | 40 |