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. 2019 Jul 5;13:1179069519858627. doi: 10.1177/1179069519858627

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© The Author(s) 2019

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 3. — Manual tracing methods and ROI. Four ROIs were defined for each DTI acquisition: genu corpus callosum (GCC), splenium corpus callosum (SCC), ipsilateral external capsule (Ipsi EC), and contralateral external capsule (Contra EC), which were manually traced on 3 coronal slices of the b = 0 image. Following manual tracing, DTI parameters (FA, RD, MD, and AD) were extracted as the average across each ROI. AD indicates axial diffusivity, DTI, diffusion tensor imaging; FA, fractional anisotropy; MD, mean diffusivity; RD, radial diffusivity; ROI, region of interest.