MR imaging parameters
| Parameter | 1.5T | 3T |
|---|---|---|
| Sequence | 3D T1 FFE | 3D T1 FFE |
| Orientation | Perpendicular to tube wall | Perpendicular to tube wall |
| TR (ms) | 3.66 | 4.5 |
| TE (ms) | 1.44 | 1.28 |
| Flip angle (°) | 30 | 30 |
| Bandwidth (Hz/pixel) | 430 | 430 |
| Section thickness (mm) | 0.8 | 0.8 |
| Sections/partitions | 80 | 60 |
| FOV (mm) | 300 | 300 |
| Matrix | 384 | 384 |
| GRAPPA factor | 2 | 2 |
| Acquisition time (sec) | 21 | 23 |
Note:—FFE indicates fast-field echo; GRAPPA, generalized autocalibrating partially parallel acquisition.