AUTHOR=Li Qianqian , Hu Su , Mo Yingmin , Chen Hao , Meng Chaoguo , Zhan Linlin , Li Mengting , Quan Xuemei , Gao Yanyan , Cheng Lulu , Hao Zeqi , Jia Xize , Liang Zhijian 

TITLE=Regional homogeneity alterations in multifrequency bands in patients with basal ganglia stroke: A resting-state functional magnetic resonance imaging study

JOURNAL=Frontiers in Aging Neuroscience

VOLUME=Volume 14 - 2022

YEAR=2022

URL=https://www.frontiersin.org/journals/aging-neuroscience/articles/10.3389/fnagi.2022.938646

DOI=10.3389/fnagi.2022.938646

ISSN=1663-4365

ABSTRACT=Objective: To investigate the spontaneous regional neural activity abnormalities in patients with acute basal ganglia ischemic stroke (BGIS) using a multi-frequency bands regional homogeneity (ReHo) method and to explore whether the alteration of ReHo values were associated with clinical characteristics.
Method: In this study, thirty-four acute BGIS patients and forty-four healthy controls (HCs) were recruited. All participants were examined by resting-state functional magnetic resonance imaging (rs-fMRI). ReHo method was used to detect the alterations of spontaneous neural activities in acute BGIS patients. A two sample t-test comparison was performed to compare the ReHo value between the two groups, and a Pearson correlation analysis was conducted to assess the relationship between the regional neural activity abnormalities and clinic characteristics.
Results: Compared with the HCs, the acute BGIS patients showed increased ReHo in left caudate, and sub-region such as right caudate and left putamen in conventional frequency bands. In slow-5 frequency band, BGIS patients showed decreased ReHo in left medial cingulum of BGIS compared to the HCs and other sub-regions such as bilateral caudate and left putamen. No brain regions with ReHo alterations were found in the slow-4 frequency band. Moreover, we found the ReHo value of left caudate was positively correlated with the NIHSS score. 
Conclusion: Our findings revealed the alterations of ReHo in acute BGIS patients in specific frequency band and provided a new insight for pathogenesis mechanism of BGIS. The present study demonstrated the frequency-specific characteristics of ReHo in acute BGIS patients which may have positive effect on the future neuroimaging studies.