Abstract #0081
Substructural Topographic Map of the Interhemispheric-Cortices Connectivity in Neonate Boys And Girls.
Malek I Makki 1 and Cornelia Hagmann 2
1
MRI Research, University Children Hospital
of Zurich, Zurich, Switzerland,
2
Neonatalogy,
University Hospital of Zurich, Zurich, Switzerland
Using fiber tracking we draw a topographic map of the
interhemispheric-cortices pathways in healthy neonates
by segmenting the corpus callosum in 5 substructures:
genu, rostral body, body, isthmus and splenium. The
connectivity of the genu and rostrum to premotor cortex,
the body to the motor cortex as well as the splenium to
occipital and temporal occipital lobes were more
developed in girls compared to boys (significantly lower
mean and radial diffusions in girls). The isthmus
connectivity to the superior temporal and posterior
parietal is similar in both groups and is the last
substructure to develop (lowest anisotropy, and axial
diffusion).
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