(A) Narrowing of upper cervical canal (white arrow) and myelomalacia at C2 (black arrow). (B) Tip of the odontoid and anterior arch of atlas are well above Chamberlain line (white line) and the clivus canal angle is <150° (yellow line).
|(A) Cavitation of the basal ganglia on axial CT scan of the brain. (B) Axial susceptibility-weighted MRI shows iron deposition in basal ganglia.|
Visual assessment of the medial temporal lobe atrophy was performed on a single MR-slice posterior to the amygdala and the mamillary bodies.
The was positioned so the hippocampus, the pons and the cerebral peduncles were all visible. The visual assessment included hippocampus proper, dentate gyrus, subiculum, parahippocampal gyrus, entorhinal cortex and surrounding CSF spaces such as temporal horn and choroid fissure. The right and left side were rated separately. Scores range from 0 (no atrophy) to 4 (end stage atrophy).
Biomarkers for Alzheimer: Neuropathologic Correlates of Hippocampal Atrophy ...: The volume of the hippocampus measured with structural magnetic resonance imaging (MRI) is increasingly used as a biomarker for Alzheimer'...