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Wilson's disease studied with FDG and positron emission tomography
R A Hawkins1, J C Mazziotta, M E Phelps
1Department of Radiological Sciences, UCLA School of Medicine 90024.
Neurology
|November 1, 1987
Summary
Positron emission tomography (PET) revealed reduced brain glucose metabolism in Wilson's disease patients. Unlike Huntington's disease, Wilson's disease shows less caudate nucleus and more lenticular nuclei involvement.
Area of Science:
- Neurology
- Nuclear Medicine
- Neuroimaging
Background:
- Wilson's disease is a genetic disorder causing copper accumulation.
- Positron emission tomography (PET) with 2-deoxy-2-[18F]fluoro-D-glucose (FDG) is used to assess brain glucose metabolism.
Observation:
- FDG-PET scans were performed on four Wilson's disease patients and eight healthy controls.
- Patients exhibited reduced glucose metabolism across most brain regions compared to controls.
Findings:
- A significant decline in the ratio of glucose metabolism in the lenticular nuclei to hemispheres was observed in Wilson's disease patients (1.03) versus controls (1.23).
- Brain glucose metabolism was diffusely reduced in Wilson's disease, except in the thalamus.
- Compared to Huntington's disease, Wilson's disease showed less focal caudate nucleus and more severe lenticular nuclei involvement.
Implications:
- FDG-PET imaging can differentiate the neurodegenerative patterns of Wilson's disease from other conditions like Huntington's disease.
- These findings highlight the utility of PET FDG in understanding the specific neurochemical deficits in Wilson's disease.
- The study underscores the distinct pattern of cerebral metabolic alterations in Wilson's disease, emphasizing lenticular nuclei dysfunction.