Abstract #3504
Cortical layers one by one: the visual cortex in advanced qMRI
Ana-Maria Oros-Peusquens 1 , Johannes Lindemeyer 1 , and N. Jon Shah 1
1
Institute of Neuroscience and Medicine
(INM-4), Research Centre Juelich, Juelich, Germany
We report on a multiparametric, high-resolution study of
the visual cortex at 9.4T, including T1, q-space
diffusion, HARDI, phase and T2* contrast and T1-T2
correlated relaxometry. The boundary between areas V1
and V2 is easily defined in most contrasts. Most
interesting resuts include: featureless slow diffusion,
higher amplitude of slow compared to fast diffusion in
the internal lamina of the cortex and in white matter,
layer-dependent mean displacement and probability of
zero-displacement, visibility of at least 6 distinct
layered regions in T1 maps, clear definition of V1/V2
border in M0, layer visible in phase contrast which
corresponds to fibre sheet of different orientation than
generally radial one in the visual cortex.
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