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PET and the effects of aging and neurodegeneration on brain function: basic principles
P Pietrini1, S J Teipel, P Bartenstein
1Laboratory of Neurosciences, National Institute on Aging, National Institutes of Health, Bethesda, Maryland 20892, USA.
Drug News & Perspectives
|December 24, 2004
Summary
This review covers the historical development and principles of Positron Emission Tomography (PET) for studying brain function, aging, and neurodegeneration. It highlights PET
Area of Science:
- Neuroscience
- Medical Imaging
- Radiochemistry
Background:
- Positron Emission Tomography (PET) has evolved significantly, enabling in vivo measurement of human brain function.
- Understanding PET principles and limitations is crucial for interpreting brain imaging studies in health and disease.
Purpose of the Study:
- To provide a historical overview of in vivo brain function measurement and advances in PET technology.
- To explain the physical principles and limitations of PET scanning for critical data interpretation.
- To review PET's capability in measuring regional cerebral glucose metabolism, blood flow, and neuroreceptor binding.
Main Methods:
- Review of historical development of in vivo brain function measurement techniques.
- Explanation of the physical principles underlying PET scanning.
- Description of methods for measuring regional cerebral glucose metabolism ([(18)F]-FDG PET), regional cerebral blood flow, and neuroreceptor binding.
Main Results:
- Recent advances in PET technology allow for detailed in vivo assessment of brain function.
- PET enables measurement of key biomarkers including glucose metabolism, blood flow, and neuroreceptor characteristics.
Conclusions:
- PET is a powerful tool for studying neurodegeneration and aging in the human brain.
- Future perspectives indicate PET's increasing relevance, particularly in neuropsychiatric research.