Table 1. Imaging parameters of MR sequences.
MR sequences | TR (ms) | TE (ms) | Flip angle (º) | FOV (mm2) | Resolution (mm3) | Bandwidth (Hz) | Slice | Acquisition time |
---|---|---|---|---|---|---|---|---|
T1WI | 250 | 2.46 | 70 | 240×240 | 0.9×0.8×5 | 330 | 20 | 1 min 6 s |
T2WI | 6,000 | 93 | 120 | 220×220 | 0.7×0.7×5 | 220 | 20 | 1 min 45 s |
DWI | 4,000 | 96 | 90 | 230×230 | 0.6×0.6×5 | 1,343 | 20 | 1 min 1 s |
SWI | 27 | 20 | 15 | 230×200 | 0.5×0.5×2 | 120 | 56 | 2 min 58 s |
MRA | 22 | 3.59 | 18 | 240×200 | 0.8×0.8×0.8 | 164 | 240 | 7 min 2 s |
MR, magnetic resonance; TR, time of repetition; TE, time of echo; FOV, field of vision; T1WI, T1-weighted images; T2WI, T2-weighted images; DWI, diffusion-weighted images; SWI, susceptibility-weighted imaging; MRA, magnetic resonance angiography.