Table 1.
Acquisition parameters for the study sequences
| Sequence name | qDixon | VIBE |
| Sequence type | 3D multi-echo Dixon | 3D spoiled gradient-echo |
| Orientation | Axial | Axial |
| Repetition time (ms) | 15.6 | 10 (4.2) |
| Echo time (ms) | Range 1.10 to 14.28 with 12 echoes | 1.27 (1.48) |
| Flip angle (°) | 4 | 2/18 |
| Bandwidth (Hz/pixel) | 1,090 | 399 (313) |
| Matrix | 96 × 96 | 128 × 128 |
| Field of view (mm2) | 200 × 200 | 200 × 200 |
| Slice thickness (mm) | 2.5 | 2.5 |
| Number slices | 72 | 72 |
| Number acquisitions | 1 pre- and post-oxygen |
Proton density: 3 (5) Dynamic: 40 (60) |
| Oxygen on (min:s) | - | 3:32 (2:09) |
| Total acquisition time (min:s) | 0:58 | 8:27 (5:35) |
| Time for single acquisition (s) | 29 | 11.8 (5.15) |
Values in parentheses represent the initial imaging protocol reviewed after the first three nonpatient volunteers and two patients
3D Three-dimensional