Author:
Ge Yunxiang,Zheng Weimin,Li Yujia,Dou Weibei,Ren Shan,Chen Zhigang,Wang Zhiqun
Abstract
In order to deeply understand the specific patterns of volume, microstructure, and functional changes in Multiple System Atrophy patients with cerebellar ataxia syndrome (MSA-c), we perform the current study by simultaneously applying structural (T1-weighted imaging), Diffusion tensor imaging (DTI), functional (BOLD fMRI) and extended Network-Based Statistics (extended-NBS) analysis. Twenty-nine MSA-c type patients and twenty-seven healthy controls (HCs) were involved in this study. First, we analyzed the whole brain changes of volume, microstructure, and functional connectivity (FC) in MSA-c patients. Then, we explored the correlations between significant multimodal MRI features and the total Unified Multiple System Atrophy Rating Scale (UMSARS) scores. Finally, we searched for sensitive imaging biomarkers for the diagnosis of MSA-c using support vector machine (SVM) classifier. Results showed significant grey matter atrophy in cerebellum and white matter microstructural abnormalities in cerebellum, left fusiform gyrus, right precentral gyrus and lingual gyrus. Extended-NBS analysis found two significant different connected components, featuring altered functional connectivity related to left and right cerebellar sub-regions, respectively. Moreover, the reduced fiber bundle counts at right Cerebellum_3 (Cbe3) and decreased fractional anisotropy (FA) values at bilateral Cbe9 were negatively associated with total UMSARS scores. Finally, the significant features at left Cbe9, Cbe1, and Cbe7b were found to be useful as sensitive biomarkers to differentiate MSA-c from HCs according to the SVM analysis. These findings advanced our understanding of the neural pathophysiological mechanisms of MSA from the perspective of multimodal neuroimaging.
Funder
National Natural Science Foundation of China
Beijing Municipal Natural Science Foundation
Subject
Cognitive Neuroscience,Aging
Reference71 articles.
1. The role of the anterior cingulate cortex in emotional response inhibition.;Albert;Hum Brain Mapp.,2012
2. Three familial midline malformtion syndromes of the central nervous system: agenesis of the corpus callosum and anterior horn-cell disease; agenesis of cerebellar vermis; and atrophy of the cerebellar vermis.;Andermann;Birth Def. Orig. Artic. Ser.,1975
3. Failure to engage spatial working memory contributes to age-related declines in visuomotor learning.;Anguera;J. Cogn. Neurosci.,2011
4. The anterior cingulate cortex is a critical hub for paininduced depression.;Barthas;Biol. Psychiatry,2015
5. Multilayer motif analysis of brain networks.;Battiston;Chaos: Interdiscipl. J. Nonlin. Sci.,2017
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