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. Author manuscript; available in PMC: 2013 Nov 28.
Published in final edited form as: Neuroimage. 2013 Apr 13;78:68–74. doi: 10.1016/j.neuroimage.2013.04.022

Fig. 2.

Fig. 2

Removing the background phase (TE = 21.73 ms). A) Geometry of the straws segmented from the spin echo images. B) Original phase. C) Background phase after extrapolation of magnetic fields into the straw regions. D) Subtraction of C from B to reveal pristine dipole effects due to the iron in the straws.