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Table 2 Mean, standard deviation (sd) and coefficient of variance (CV) of FA by the four ROI methods separately

From: Impact of region-of-interest method on quantitative analysis of DTI data in the optic tracts

ROI method Section 1 Section 2 Section 3
Mean ± sd CV % Mean ± sd CV % Mean ± sd CV %
Manual b0 0.50 ± 0.09 18 0.67 ± 0.11 17 0.70 ± 0.09 12
FA-skeleton 0.51 ± 0.08 16 0.68 ± 0.09 14 0.73 ± 0.06 8
Manual T1W 0.44 ± 0.08 18 0.58 ± 0.09 16 0.56 ± 0.06 11
Tractography 0.41 ± 0.10 24 0.63 ± 0.11 18 0.62 ± 0.10 16