From: Magnetic resonance cholangiopancreatography: the ABC of MRCP
Parameter | T2-weighted breath-hold HASTE (liver down to ampulla) | 3D T2-weighted FSE with respiratory triggering | T2 weighted breath-hold HASTE fat-saturated thick slab |
---|---|---|---|
TR/TE (ms) | 1,000/83 | 1,800/678 | 4,500/752 |
Number of averages | 1 | 1 | 1 |
Flip angle | 150 | 180 | 180 |
Field of view (mm) | 350 × 263 | 380 × 380 | 350 × 350 |
Matrix size | 256 × 146 | 384 × 380 | 384 × 300 |
Slice thickness (mm) | 7 mm | 1.5 mm | 40 mm |
Slice gap (mm) | 0.7 mm | 0 mm | N/A |
Number of slices | 20 | 40 | 1 |
Acquisition plane | Axial | Coronal oblique | Coronal |
Half-Fourier factor | 5/8 | Phase-encoding: off | Phase encoding: 7/8 |
Slice-encoding: 6/8 | |||
Parallel imaging acceleration factor | 2 | 2 | 2 |
Receiver bandwidth (Hz/pixel) | 391 | 260 | 150 |
Turbo factor | 146 | 127 | 307 |
Oversampling | None | Slice: 20% | Phase: 33% |