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  • Title: Functional imaging of neurotransmitter systems in movement disorders.
    Author: Ilgin N.
    Journal: Q J Nucl Med; 1998 Sep; 42(3):179-92. PubMed ID: 9796366.
    Abstract:
    PET and SPECT enable the direct measurement of components of the dopaminergic and other systems in the living human brain and offer unique opportunity for the in vivo quantification of the dopaminergic function in PD and other movement disorders. The need to establish the early and differential diagnosis of PD is increasingly important given the recent evidence that early pharmacologic intervention may slow progression of this progressive degenerative disease. Accordingly, imaging with PET and SPECT using specific neuromarkers has been increasingly important to biochemically identify the loss of specific neurotransmitters, their synthesizing enzymes and their receptors in movement disorders. Through the parallel development of new radiotracers, kinetic models and better instruments, PET and SPECT technology is enabling investigation of increasingly more complex aspects of the human brain neurotransmitter systems. This paper summarizes the results of different PET-SPECT studies used to evaluate the various elements of the dopamine system in the human brain with PET and intends to introduce the newly emerging specific tracers and their applications to clinical research in movement disorders.
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