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  • Title: Assessing whole brain perfusion changes in patients with REM sleep behavior disorder.
    Author: Mazza S, Soucy JP, Gravel P, Michaud M, Postuma R, Massicotte-Marquez J, Decary A, Montplaisir J.
    Journal: Neurology; 2006 Nov 14; 67(9):1618-22. PubMed ID: 17101893.
    Abstract:
    OBJECTIVE: To investigate the regional cerebral perfusion in patients with idiopathic REM behavior disorder (RBD) in order to establish the topography of networks involved. METHODS: We performed cerebral blood flow evaluation using (99m)Tc-Ethylene Cysteinate Dimer (ECD) SPECT on eight patients with polysomnographically confirmed RBD and nine age-matched controls. Comparisons were made using SPM2. RESULTS: We found increased perfusion in the pons and putamen bilaterally and in the right hippocampus. In addition, we observed a decreased perfusion in frontal (Brodmann area [BA] 4, 6, 10, 43, 44, 47 bilaterally and left BA 9, 46) and temporo-parietal (BA 13, 22, 43 bilaterally and left BA 7, 19, 20, 21, 39, 40, 41, 42) cortices. CONCLUSION: Perfusional abnormalities in patients with REM behavior disorder were located in the brainstem, striatum, and cortex. These abnormalities are consistent with the anatomic metabolic profile of Parkinson disease.
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