Table 1. Sequence parameters of the cine phase contrast, DWI and MR elastography (MRE) sequences obtained at 3.0 T in fasting and postprandial states.
Phase contrast imaging | DWI | MRE | |
Motion control | Breath-hold with cardiac triggering | Free breathing | Breath-hold |
Sequence type | 2D GRE | 2D SE SS EPI | 2D GRE |
Orientation | Perpendicular to portal vein | Transverse | Transverse |
TR (ms) | 6.1 | 3000 | 50 |
TE (ms) | 3.3 | 52.5 | 22 |
Flip Angle | 20o | 90–180o | 20o |
FOV (mm) | 380×304 | 435×435 | 360×360 |
Image matrix | 192×160 | 128×128 | 128×80 |
Slice thickness (mm) | 7 | 8 | 10 |
Number of slices | 1 | 20 | 4 |
Acceleration | ASSET R = 2 | ASSET R = 2 | ASSET R = 2 |
Acquisition time | 15–20 s | 3:55 min | 68 s |