Table 1 MR imaging parameter
Parameter | T2-weighted imaging unenhanced | T1-weighted imaging unenhanced | Contrast-enhanced imaging |
|---|---|---|---|
Sequence | Fast spin-echo | Gradient-echo, FLASH | Gradient-echo, FLASH |
Respiratory-triggered | Yes | No | No |
Matrix | 180 × 320 | 174 × 320 | 174 × 320 |
Section thickness (mm) | 6 | 6 | 6 |
Flip angle (degrees) | 150 | 10 | 10 |
Field of view | 285 × 380 | 344 × 380 | 344 × 380 |
Repetition time (ms) | 1000 | 4.0 | 4.0 |
Echo time (ms) | 85 | 1.5 | 1.5 |
Acquisition time | >79 s | 17 s | 17 s |