In utero tractography of the cingulum (pink) in subjects 15 (a), 20 (b) and 23 (c) (27, 33 and 33 GW respectively) and its relation to the corpus callosum (dark blue).

<p>Tractography of the corpus callosum was performed according to the methods described in Kasprian et al. (2008) [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0119536#pone.0119536.ref026" target="_blank">26</a>]. Fiber tracts are projected on axial T2-weighted images.