Table 1. Segmental, Lobar, and Whole Liver Hepatic PDFF Summaries.
| Three-Echo Method | Four-Echo Method | Five-Echo Method | Six-Echo Method | Inter-method mean | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Exam 1 | Exam 2 | Exam 3 | Inter-exam mean | Exam 1 | Exam 2 | Exam 3 | Inter-exam mean | Exam 1 | Exam 2 | Exam 3 | Inter-exam mean | Exam 1 | Exam 2 | Exam 3 | Inter-exam mean | Exam 1 | Exam 2 | Exam 3 | Inter-exam mean | |
| Segment | ||||||||||||||||||||
| 1 | 11.94 | 11.89 | 11.80 | 11.88 | 11.86 | 11.80 | 11.71 | 11.79 | 11.99 | 11.85 | 11.75 | 11.87 | 11.91 | 11.78 | 11.68 | 11.79 | 11.92 | 11.83 | 11.73 | 11.83 |
| 2 | 9.64 | 9.64 | 9.71 | 9.67 | 9.51 | 9.51 | 9.58 | 9.53 | 9.62 | 9.56 | 9.65 | 9.61 | 9.51 | 9.44 | 9.53 | 9.49 | 9.57 | 9.54 | 9.62 | 9.58 |
| 3 | 10.94 | 10.83 | 10.85 | 10.87 | 10.82 | 10.71 | 10.74 | 10.76 | 10.86 | 10.79 | 10.81 | 10.82 | 10.75 | 10.71 | 10.74 | 10.73 | 10.84 | 10.76 | 10.78 | 10.80 |
| 4a | 10.92 | 11.01 | 10.87 | 10.93 | 10.81 | 10.91 | 10.75 | 10.82 | 10.96 | 11.11 | 10.93 | 11.00 | 10.86 | 10.97 | 10.78 | 10.87 | 10.89 | 11.00 | 10.83 | 10.91 |
| 4b | 11.58 | 11.49 | 11.40 | 11.49 | 11.47 | 11.37 | 11.26 | 11.37 | 11.51 | 11.51 | 11.45 | 11.49 | 11.42 | 11.41 | 11.36 | 11.40 | 11.49 | 11.44 | 11.37 | 11.44 |
| 5 | 11.57 | 11.45 | 11.44 | 11.49 | 11.43 | 11.32 | 11.31 | 11.36 | 11.49 | 11.34 | 11.33 | 11.38 | 11.39 | 11.23 | 11.22 | 11.28 | 11.47 | 11.34 | 11.32 | 11.38 |
| 6 | 12.06 | 12.22 | 12.24 | 12.17 | 11.96 | 12.10 | 12.15 | 12.07 | 12.06 | 12.17 | 12.28 | 12.17 | 11.97 | 12.10 | 12.19 | 12.09 | 12.01 | 12.15 | 12.21 | 12.13 |
| 7 | 12.80 | 12.79 | 12.93 | 12.84 | 12.71 | 12.69 | 12.83 | 12.74 | 12.78 | 12.73 | 12.91 | 12.81 | 12.70 | 12.68 | 12.88 | 12.75 | 12.75 | 12.72 | 12.89 | 12.79 |
| 8 | 12.34 | 12.39 | 12.07 | 12.27 | 12.21 | 12.23 | 11.94 | 12.13 | 12.25 | 12.36 | 12.05 | 12.22 | 12.15 | 12.24 | 11.95 | 12.11 | 12.24 | 12.31 | 12.00 | 12.18 |
| Lobe | ||||||||||||||||||||
| Left | 11.00 | 10.97 | 10.92 | 10.96 | 10.90 | 10.86 | 10.81 | 10.86 | 10.99 | 10.96 | 10.92 | 10.96 | 10.89 | 10.86 | 10.82 | 10.86 | 10.94 | 10.91 | 10.87 | 10.91 |
| Right | 12.19 | 12.21 | 12.17 | 12.19 | 12.08 | 12.08 | 12.06 | 12.07 | 12.15 | 12.15 | 12.14 | 12.15 | 12.06 | 12.06 | 12.06 | 12.06 | 12.12 | 12.13 | 12.11 | 12.12 |
| Whole liver | 11.53 | 11.52 | 11.48 | 11.51 | 11.42 | 11.40 | 11.36 | 11.40 | 11.50 | 11.49 | 11.46 | 11.49 | 11.41 | 11.39 | 11.37 | 11.39 | 11.47 | 11.45 | 11.42 | 11.45 |
Note – Table shows for each segment, lobe, and whole liver the mean PDFF estimates, averaged across the 29 subjects, for each reconstruction method (three, four, five, and six echoes; as well as the inter-method mean, which averages the values across the four methods) and for each examination (1, 2, 3; as well as the inter-exam mean, which averages the values across the three examinations). Units of PDFF estimates are percentage points.