Sequence | 3D DIR | 2D T2WI TSE | |
---|---|---|---|
Imaging plane | Sagittal | Sagittal | Axial |
Acquisition matrix | 208 × 208 × 300 | 212 × 233 | 308 × 207 |
Acquisition voxel size (mm3) | 1.2 × 1.2 × 1.3 | 0.94 × 1.18 × 2 | 0.65 × 0.88 × 4 |
TR (ms) | 5500 | 3071 | 4238 |
TE (ms) | 287 | 100 | 100 |
TSE factor | 173 | 29 | 25 |
IR delays (ms) | 2550/450 | ||
Flip/refocusing angle | T2prep with TE = 125 ms and 4 refocusing pulses | 90°/120° | 90°/120° |
Acquisition time | 7 min 36 sec | 3 min 47 sec | 3 min 15 sec |
Sections | 300 | 15 | 28 |
Note:—IR indicates inversion recovery; T2prep, preparation pulse to ensure T2 weighting.