RT Journal Article SR Electronic T1 Diffusion Tensor MR Imaging Visualizes the Altered Hemispheric Fiber Connection in Callosal Dysgenesis JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 25 OP 28 VO 25 IS 1 A1 Lee, Seung-Koo A1 Mori, Susumu A1 Kim, Dong Joon A1 Kim, Sei Young A1 Kim, Si Yeon A1 Kim, Dong Ik YR 2004 UL http://www.ajnr.org/content/25/1/25.abstract AB Summary: We report three cases of callosal dysgenesis that were evaluated by diffusion tensor imaging and fiber tractography. In partial agenesis of corpus callosum, fiber tracts from all regions of brain converged to a partially developed small genu portion and connected to the contralateral side. In complete callosal agenesis, fibers from the hemispheres failed to cross the midline and formed thick bundles running anteroposteriorly (eg, Probst bundle). The thickness of the anterior commissure was enlarged or smaller than normal brain, and other white matter tracts were not markedly different from normal brain tissue.