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. Author manuscript; available in PMC: 2010 Dec 13.
Published in final edited form as: Neuroimage. 2008 Oct 22;44(3):769–776. doi: 10.1016/j.neuroimage.2008.09.059

Table 1.

GM similarity indices at various RF inhomogeneity and noise levels in accuracy test using BrainWeb simulation images.

RF inhomogeneity levels
0% 20% 40% Average
Noise levels 0% 0.974 0.975 0.967 0.972
1% 0.971 0.974 0.966 0.970
3% 0.962 0.964 0.956 0.960
5% 0.945 0.949 0.941 0.945
7% 0.911 0.920 0.913 0.915
9% 0.866 0.873 0.858 0.866
Average 0.938 0.943 0.933 0.938