Table 1. Imaging protocol parameters of coronal T2WI, axial T1WI and T2WI, and axial high b-value DWI.
Parameters | Coronal T2WI | Axial T1WI | Axial T2WI | Axial high b-value DWI |
---|---|---|---|---|
Sequence | TSE | TSE | TSE | MS-EPI RESOLVE |
Repetition time (ms) | 3500 | 1490 | 3420 | 6200 |
Echo time (ms) | 95 | 13 | 87 | 74/115 |
Fat suppression | Dixon | FS | FS | FS |
Flip angle (°) | 165 | 160 | 180 | 180 |
Section thickness (mm) | 3 | 3 | 3 | 3 |
Section interval (mm) | 0.3 | 0.3 | 0.3 | 0.3 |
Field of view (mm) | 160 | 160 | 160 | 175 |
Matrix | 224 × 320 | 256 × 320 | 256 × 320 | 174 × 174 |
Average | 1 | 3 | 3 | 1, 1 and 4 |
Slices | 24 | 24 | 24 | 24 |
Bandwidth (Hz/pixel) | 300 | 250 | 260 | 685 |
Parallel acquisition factor | 2 | 2 | 2 | 2 |
B-values (sec/mm2) | / | / | / | 0, 800, and 2000 |
Readout segments | / | / | / | 7 |
Acquisition time | 2'13'' | 2' 34'' | 2' 39'' | 14' 11'' |
Abbreviations: T2WI, T2-weighted imaging; T1WI, T1-weighted imaging; DWI, diffusion-weighted imaging; TSE, turbo spin-echo; MS-EPI, multi-shot echo-planar imaging; RESOLVE, readout segmentation of long variable echo-trains; FS, frequency-selective.