Clearview mri mt scott9/25/2023 We also assessed resting‐state functional connectivity of both ventral and dorsal components of DMN in a subset of subject with a rs‐fMRI dataset available ( n = 17). Differences in mean diffusivity were also examined between the cortical (MM(V)1, MM(V)2C, and VV1) and subcortical (VV2 and MV2K) subgroups of sCJD for those with autopsy data available ( n = 27, 73%). Specifically, grey matter mean diffusivity of 37 subjects with sCJD was compared with that of 30 age‐matched healthy controls with a group‐wise approach. We analyzed the grey matter involvement using a quantitatively multi‐parametric MRI approach. Default Mode Network (DMN) areas have been recently demonstrated as selectively involved in sCJD, and functional connectivity has never been investigated in prion diseases. Grey matter involvement is a well‐known feature in sporadic Creutzfeldt–Jakob disease (sCJD), yet precise anatomy‐based quantification of reduced diffusivity is still not fully understood.
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