Table 1. Image acquisition protocols used to calculate PDFF and T2* in UK Biobank cohort.
| Parameter | Protocol1 | Protocol2 |
|---|---|---|
| PDFF Maps calc. using: |
LMS IDEAL |
LMS Dixon |
| T2* Maps calc. using: | LMS T2* | |
| FOV (cm2) | 44x40 | 40x40 |
| Matrix | 128x116 | 160x160 |
| Voxel size (mm2) | 1.7x1.7 | 2.5x2.5 |
| Slice thickness (mm) | 10 | 6 |
| Flip angle (°) | 5 | 20 |
| TR (ms) | 14 | 27 |
| Pixel bandwidth (Hz/px) | 1565 | 710 |
| Number of averages | 6 | 2 |
| Number of echoes | 6 | 10 |
| First TE (ms) | 1.2 | 2.38 |
| Echo spacing (ms) | 2 | 2.38 |
| Breath-hold duration (s) | 9.7 (1.6 / measure) | 8.7 |