The Influence of Spatial Registration on Detection of Cerebral Asymmetries Using Voxel-Based Statistics of Fractional Anisotropy Images and TBSS
Figure 3
The procedure for calculating the and
maps showed for the registration approach (iv) and the FA threshold: FA >0.2.
(a) The FA image of an individual subject was thresholded (FA >0.2) and masked with an external FA mask that was also used for the FA-VBS statistics (section FA-VBS and TBSS analysis). (b) The left and right hemisphere of the thresholded and masked FA image for the individual subject ( and
). (c) The resulting difference (
) and intersection (
) maps for the individual subject. (d) The subject-averaged
and
maps.