Skip to main content
. Author manuscript; available in PMC: 2012 Nov 26.
Published in final edited form as: Magn Reson Med. 2011 Dec 9;68(3):830–840. doi: 10.1002/mrm.23306

FIG. 4.

FIG. 4

Fat fractions measured on a water-only phantom (fat fraction = 0%) in 2D and 3D acquisitions, in the presence of a linearly varying B0 field. The results show the uncorrected measures using all 16 echoes, as well as using only the first six echoes, and the corrected measures using all 16 echoes. Fat fractions are less affected than R*2 by macroscopic field variations. However, very large field gradients can still introduce errors in fat fraction measurement. Note the dependence of apparent fat fraction on the choice of TE combination, in the presence of very large field gradients.