Table 2.
Parameters for MRI Techniques
| Parameter | Values for MRI-M | Values for MRI-C |
|---|---|---|
| Pulse sequence | 2D SPGR | 3D SPGR |
| Slice thickness (mm) | 8 | 8 |
| Flip angle (degrees) | 10 | 3 |
| Interslice gap (mm) | 0 | Not applicable |
| TE (msec) | 1.1, 2.3, 3.5, 4.6, 5.8, 6.9 | 0.9, 1.7, 2.5, 3.2, 4.0, 4.7 |
| TR (msec) | ≥150 | 6.9 |
| Base image matrix | 224 × 128 | 192 × 160 |
| FOV (cm) | 44 × 44 | 44 × 44 |
| NEX | 1 | 1 |
| R | 1.25 | 2 × 2 |
| Bandwidth (± kHz) | ± 142 | ± 125 |
| Acquisition time (sec) | 2 × 20 a | 20 |
MRI-M and MRI-C, magnitude-based and complex-based magnetic resonance imaging; PGR, spoiled gradient recalled echo; TE, time to echo; TR, repetition time; FOV, field of view; NEX, number of excitations; R, acceleration factor.
a
Two 20-second breatholds required to cover whole liver.