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. Author manuscript; available in PMC: 2009 Apr 1.
Published in final edited form as: Neuroimage. 2008 Feb 1;40(2):559–569. doi: 10.1016/j.neuroimage.2007.12.025

Figure 2.

Figure 2

Histogram of ratio image values sampled 0.5 mm to 1 mm out from the gray/white junction. The blue line indicates the μ+2σ threshold. Note the Gaussian shape of the distribution.