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. Author manuscript; available in PMC: 2009 Apr 1.
Published in final edited form as: Magn Reson Imaging. 2008 Feb 21;26(3):347–359. doi: 10.1016/j.mri.2007.08.012

Figure 8.

Figure 8

Fat fractions determined by models (iv) and (v) using GRE imaging (circle and square markers, respectively) plotted against the fat fraction determined by spectroscopy using the STEAM sequence. Panel A shows the results using a flip angle of 10° and panel B shows the results using a flip angle of 90°. Assuming spectroscopy represents the true fat fraction, the solid lines show expected trends from Eq 9 with TR 122 ms, T1(water) = 490 ms and T1(fat) = 260 ms (24). Note the non-linearity due to T1-weighting is more evident in the high flip angle data.