Table 1 MR scan sequences parameters
Protocol angulation | T1WI axial | T2WI axial | FIESTA coronal | 2D MRCP oblique coronal | 3D MRCP coronal | LAVA (oblique) coronal/axial multiphase |
|---|---|---|---|---|---|---|
Sequence | FSE | FSE | FIESTA | SSFSE | FRFSE | LAVA |
TR (ms) | 400 | 6000.0 | 3.5 | 6000 | 3333 | 3.8 |
TE (ms) | 8.0 | 85.008 | 1.5 | 798.3 | 1070.3 | 1.8 |
FOV (mm) | 420 | 420 | 350 | 320 | 380 | 400 |
Matrix | 320 × 256 | 288 × 224 | 224 × 224 | 384 × 288 | 320 × 256 | 288 × 200 |
No. of slices | 20 | 20 | 20 | 6 | 113 | 84 |
Thickness (mm) | 6 | 6 | 6 | 60.0 | 1.8 | 3 |
Voxel (mm) | 1.3 × 1.6 × 6 | 1.5 × 1.9 × 6 | 1.6 × 1.6 × 6 | 0.8 × 1.1 × 60 | 1.2 × 1.5 × 1.8 | 1.4 × 2 × 3 |
Space (mm) | 2.0 | 2.0 | 1.0 | 0.0 | −0.90 | −1.50 |
Bandwidth (kHz) | 31.2 | 41.7 | 125 | 31.2 | 41.7 | 62.5 |
NEX | 2.00 | 2.00 | 1.00 | 0.56 | 0.38 | 0.72 |
Respiratory | Breath-hold | Trigger | Trigger | Breath-hold | Trigger | Breath-hold |