Full-Range Liver Fat Fraction Estimation in Magnitude MRI Using a Signal Shape Descriptor

Table 2

Summary of agreement results for Multi-interference (half-range).

SNR		AOC	Intercept	Slope	Lower 95%	Upper 95%
200	0.9928	0.0125	-0.0041	-0.0360	-0.0227	0.0146
100	0.9927	0.0126	-0.0041	-0.0361	-0.0234	0.0152
50	0.9921	0.0132	-0.0033	-0.0389	-0.0244	0.0178
25	0.9901	0.0149	-0.0037	-0.0371	-0.0310	0.0236

Due to the nonuniform differences in relation to the values of True PDFF, in order to obtain the estimated error value at a given fat fraction PDFF one must calculate intercept + slopePDFF. For 95% limits of agreement, the calculation is the same with lower or upper limits replacing intercept. No outliers had to be removed for these calculations. is best when close to 1 and AOC when close to 0.