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. Author manuscript; available in PMC: 2008 Jun 13.
Published in final edited form as: Neuroimage. 2007 Mar 24;36(3):617–629. doi: 10.1016/j.neuroimage.2007.02.050

Table 4.

WM and GM SNRs of each shell

shell 0 1st 2nd 3rd 4th 5th
b value (s/mm2) 0 375 1500 3375 6000 9375
WM SNR 22.65 ± 5.92 17.67 ± 4.13 9.01 ± 2.00 5.02 ± 1.20 3.57 ± 0.90 2.85 ± 0.71
GM SNR 29.33 ± 11.25 21.26 ± 6.38 9.09 ± 2.40 3.38 ± 0.82 1.88 ± 0.44 1.58 ± 0.32

Whole brain WM and GM were segmented by input Po map to FAST algorithm.

The standard deviation was calculated across whole brain ROI.