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. Author manuscript; available in PMC: 2014 Dec 25.
Published in final edited form as: J Magn Reson Imaging. 2013 Oct 10;39(6):1494–1501. doi: 10.1002/jmri.24289

Figure 2.

Figure 2

Comparison of fat fractions from MR spectroscopy (MRS Fat-Fraction) and chemical shift imaging (MRI Fat-Fraction) without any correction (a) and with T2* correction (b). Without any corrections it is not possible to quantify liver fat, especially in cases of liver iron overload (c). One patient with iron overload is depicted as point 1. In subjects with iron overload, the fat fraction will be estimated incorrectly if T2* effects are not corrected. With T2* correction, both techniques are comparable; however, there is a significant difference in the slope and intercept for both techniques. D: Fat quantification in a subject with liver iron overload (point 1) is more accurate when corrected for T2* decay.