Imaging | Patterns |
---|---|
Hypoglycaemic encephalopathy | |
CT | Enhancing, hypodense basal ganglia, cerebral cortex, hippocampus and substantia nigra |
MRI |
|
Hyperglycaemic encephalopathy | |
CT | Hyperdense putamen and/or caudate nucleus |
MRI | Unilateral or bilateral T1 hyperintensities in the striatum (mostly putamen) |
SPECT | Hypoperfusion of the basal ganglia |
Hyponatraemic/hypernatraemic encephalopathies (pontine or extrapontine myelinolysis) | |
CT |
|
MRI |
|
SPECT | Decreased striatal dopamine transporter binding and pontine hyperperfusion during recovery |
DWI, diffusion-weighted imaging; FLAIR, fluid-attenuated inversion recovery; SPECT, single-photon emission CT.