Table 1.
Multiparametric MRI sequence parameters.
| Sequence | T2w TSE STIR | T1w TSE Dixon | T2w TSE | IVIM | DWI | VIBE DCE |
T1w TSE Dixon | T1w VIBE Dixon |
|---|---|---|---|---|---|---|---|---|
| Additional features | 2D | 2D | 2D | 2D | 2D | 3D | 2D | 3D |
| Plane | Cor | Cor | Tra | Tra | Tra | Tra | Cor | Tra |
| Echo time (TE; ms) | 40 | 10 | 104 | 64 | 61 | 1.14 | 9.8 | 2.46, 3.69 |
| Repetition time (TR; ms) | 5600 | 650 | 11900 | 6900 | 7780 | 3.02 | 650 | 5.5 |
| Field of view (FOV; mm) | 500 | 500 | 220 | 220 | 220 | 220 | 500 | 350 |
| Slice thickness (mm) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 |
| In-plane resolution (mm2) | 1.0 × 1.0 | 0.8 × 0.8 | 0.3 × 0.3 | 1.8 × 1.8 | 0.9 x 0.9 | 1.1 x 1.1 | 0.9 x 0.9 | 0.9 x 0.9 |
| Flip angle (°) | 140 | 160 | 160 | 90 | 180 | 15 | 90 | 9 |
| Number of slices | 30 | 30 | 40 | 40 | 40 | 40 | 30 | 112 |
| Slice distance (mm) | 4.8 | 4.8 | 4 | 4 | 4 | 4 | 4.8 | 3 |
| Echo Train Length | 12 | 3 | 25 | 53 | 0 | 1 | 3 | 2 |
| Bandwidth per pixel (Hz) | 222 | 845 | 200 | 1812 | 883 | 789 | 868 | 690 |
| Phase Encoding Direction | Row | Row | Col | Col | Col | Col | Row | Col |
| Number of averages | 1 | 1 | 3 | 3 | 1 | 1 | 2 | 3 |
| Acquisition time (min) | 01:54 | 01:36 | 03:48 | 04:45 | 08:43 | 04:33 | 04:24 | 03:08 |
| Fat water contrast | Standard | Fast Dixon | Standard | SPAIR | Fat Saturation | Standard | Fast Dixon | Dixon |
| Fat Saturation | STIR | Strong | - | Strong | Strong | - | Strong | - |
| Diffusion Mode | - | - | - | 3D Diagonal | 4-Scan Trace | - | - | - |
| B value (s/mm2) | - | - | - | 0, 10, 20, 30, 40, 50, 70, 100, 200, 400, 600, 800 | 50, 400, 1000 | - | - | - |
| Calculated b value (s/mm2) | - | - | - | - | 1400 | - | - | - |
| EPI factor | - | - | - | 90 | 95 | - | - | - |
| Contrast enhancement | No | No | No | No | No | Yes | Yes | Yes |
| Temporal resolution (s) | - | - | - | - | - | 5.5 | - | - |
| Measurements | - | - | - | - | - | 50 | - | - |
Col: column; Cor: coronal; DCE: dynamic contrast enhanced imaging; DWI: diffusion weighted imaging; EPI: echo-planar imaging; FOV: field of view; fs: fat-saturated; IVIM: intravoxel incoherent motion; SPAIR: spectral attenuated inversion recovery; STIR: short tau inversion recovery; Tra: transverse; VIBE: volumetric interpolated breath-hold examination; w: weighted