Further Evidence of an Orientation Dependence of Magnetization Transfer Parameters from Investigations in Post-Mortem Marmoset Brain
Henrik Marschner 1 , Riccardo Metere 1 , Stefan Geyer 1 , Andr Pampel 1 , and Harald E. Mller 1
Nuclear Magnetic Resonance, Max Planck
Institute for Human Cognitive and Brain Sciences,
Leipzig, Sachsen, Germany
We examine the apparent dependence of qMT parameters, in
particular those of the T2b relaxation time of bound
protons, on the white matter fiber orientation in a
Post-Mortem Marmoset Brain. The observed angular
dependence in the post-mortem data for highly ordered WM
supports the hypothesis of orientation dependence of the
RF absorption lineshape that was observed in human brain
in vivo. Here, variation of the orientation is achieved
by rotating the sample in the magnetic field.
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