Table 1: Typical pulse sequence protocol for liver tumor examination with Gadoxetate disodium-enhanced MRI.
| MRI pulse sequence protocol for liver tumor examination | |||||||
| Pulse Sequence | Plane | TR (ms) | TE (ms) | Flip angle (°) | Field of View (mm) | Matrix | Voxel Size |
| 2D T1-weighted GRE (out/in phase) (FLASH) | Axial | 100 | 2.4/4.8 | 70 | 200 | 256 | 1.1×0.9×5.0 mm |
| 2D T1-weighted GRE (FLASH) | Axial | 180 | 2.3 | 20 | 380 | 320 | 1.3×0.9×4.0 mm |
| Injection of gadoxetate disodium (0.025 mmol/kg body weight) | |||||||
| 3D T1-weighted FS GRE pre contrast (VIBE) (Pre contrast/ arterial/ venous /equilibrium) |
Axial | 5.6 | 2.6 | 10 | 200 | 256 | 1.0×0.8×3.0 mm |
| 2D T2-weighted single shot FSE (HASTE) (Phase Partial Fourier 4/8) | Axial, Coronal, Axial | 1000 | 86 | 150 | 325 | 256 | 1.3×1.3×6.0 mm |
| 2D coronal balanced steady-state free precession (TruFISP) | Axial | 4.8 | 2.4 | 68 | 300 | 256 | 1.3×1.2×6.0 mm |
| 2D T2-weighted fat saturated with radial k-space coverage (PROPELLER/BLADE) | Axial and Coronal | 113 | 5500 | 90 | 220 | 320 | 0.7×0.7×4.0 mm |
| Diffusion-weighted imaging (b= 0, 200, 500, 800, 1000) | Axial | 4,000 | 79 | 180 | 360 | 192 | 1.1×1.1×6.0 mm |
| 3D T1-weighted GRE hepatocyte phase (VIBE) | Axial and Coronal | 5.6 | 2.3 | 10 | 360 | 256 | 1.0×0.8×3.0 mm |
| Note: FSE = fast spin-echo, GRE = gradient-recalled echo. | |||||||