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3T MRI-determined PDFF versus 3T MRS-determined PDFF. This graph illustrates the high fat estimation accuracy of MRI-determined PDFF, using MRS-determined PDFF as the reference standard, at 3T (r = 0.989). The slope of the regression equation was 1.020 and the intercept was 0.925. On average, the MRI-determined PDFF estimates were lower than MRS-determined PDFF estimates by 1.22% (P = 0.0044). The dotted line is the line of equality. The solid line is the regression line.
