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Differences in White Matter Microstructure Between Parkinson's Disease Patients With and Without Rem Sleep Behavior Disorder Publisher Pubmed



Rahmani F1 ; Ansari M2 ; Pooyan A2 ; Mirbagheri MM3 ; Aarabi MH4
Authors
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Authors Affiliations
  1. 1. Neuroimaging and Genetic Research Interest Group (NiGIG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
  2. 2. Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Department of Medical Physics and Biomedical Engineering, Tehran University, Medical Sciences and Neural Engineering Research Center, Noorafshar Hospital, Tehran, Iran
  4. 4. Basir Eye Health Research Center, Tehran, Iran

Source: Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society# EMBS Published:2016


Abstract

REM sleep behavior disorder (RBD) is characterized by increased muscle tone and violent limb movements and usually occurs during the early stages of Parkinson disease (PD). PD patients with RBD represent faster motor progression and cognitive dysfunction. We used diffusion imaging to assess which regions are involved in this phenomenon. In the current study, we computed Quantitative Anisotropic (QA), which is based on spin distribution function (SDF) that quantifies the density of diffusing water and is more sensitive to psychological differences between groups and also diffusion MRI connectometry to conduct group analysis between age and gender matched PD patients with and without RBD. The major regions with significantly reduced QA in PD patients with RBD were left and right cingulum and left and left inferior occipital fasciculus. © 2016 IEEE.
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