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Updated: Jun 23, 2026
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Radiotracer Administration for High Temporal Resolution Positron Emission Tomography of the Human Brain: Application to FDG-fPET
Published on: October 22, 2019
Dose-dependent frontal hypometabolism on FDG-PET in methamphetamine abusers
Yang-Tae Kim1, Sang-Woo Lee, Do-Hoon Kwon
1Department of Psychiatry, Bugok National Hospital, Republic of Korea.
Journal of Psychiatric Research
|April 28, 2009
Summary
Methamphetamine (MA) abusers show reduced frontal brain metabolism and executive dysfunction. These deficits in frontal lobe function are linked to the cumulative dose of MA used.
Area of Science:
- Neuroscience
- Addiction Research
- Neuroimaging
Background:
- Substance dependence is associated with prefrontal cortex abnormalities.
- Functional deficits in the prefrontal cortex are not fully understood in methamphetamine (MA) dependent patients.
Purpose of the Study:
- To investigate cerebral metabolic abnormalities in MA abusers.
- To assess executive dysfunction in MA dependent patients.
Main Methods:
- 24 abstinent MA dependent patients and 21 controls underwent resting brain FDG-PET scans.
- Participants completed the Wisconsin card sorting test (WCST) to assess executive function.
- Voxel-wise statistical analysis (SPM2) was used to compare glucose metabolism between groups.
Main Results:
- MA dependent patients exhibited significant hypometabolism in the left inferior frontal white matter compared to controls (p=0.001).
- Reduced frontal metabolism correlated negatively with the cumulative dose of MA.
- MA users performed significantly worse on the WCST, indicating executive dysfunction.
Conclusions:
- MA dependence is associated with dose-dependent frontal hypometabolism.
- These metabolic changes contribute to executive dysfunction observed in MA abusers.
