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. Author manuscript; available in PMC: 2018 Jan 1.
Published in final edited form as: Med Image Anal. 2016 Aug 31;35:475–488. doi: 10.1016/j.media.2016.08.009
a1: SPGR image (1.5 T, TR = 35 ms, TE = 5 ms, α = 45°, 0.938 × 0.938 × 1.5 mm3 voxel size),
a2: MPRAGE (1.5 T, TR = 6.92 ms, TE = 3.4 ms, α = 8°, 0.938 × 0.938 × 1.5 mm3 voxel size).