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Scatter plot of maximal FA and mean FA in nonenhancing LGG and HGG with discriminant lines. The vertical line represents cutoff value = 0.219 for maximal FA. The horizontal line represents cutoff value = 0.129 for mean FA. The oblique line represents cutoff value = 0.0 for the linear discriminant score (bivariate(mean FA + maximal FA)), which separates LGG from HGG better than either maximal FA or mean FA alone.
