Andrea Federspiel1, Sebastian Walther1, Ariane Orosz1, Roland Wiest2, Stphanie Giezendanner1, Jennifer Andreotti1, Simon Schwab1, Thomas Dierks1, Kay Jann1
1Dept. of Psychiatric Neurophysiology, University Hospital of Psychiatry / University of Bern, Bern, Switzerland; 2Institute of Diagnostic and Interventional Neuroradiology, University of Bern, Bern, Switzerland
In the present study the relationship between cerebral blood flow (CBF) and fractional anisotropy (FA) within white matter was investigated in a cohort of twenty four healthy subjects. After rigorous treatment of partial volume effects a significant negative linear relationship located within the splenium of the corpus callosum was observed between these variables in all subjects. The findings of the present study are in line with previous findings, but with a larger sample. The inverse relationship could indicate a dependency of CBF values with averaged axonal diameter of the tracts within WM.