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Frequency-Specific Changes of Amplitude of Low-Frequency Fluctuations in Patients with Acute Basal Ganglia Ischemic Stroke.

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收录情况： ◇ SCIE ◇ SSCI

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机构： [1]Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China. [2]Department of Neurology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China. [3]School of Teacher Education, Zhejiang Normal University, Jinhua, China. [4]Key Laboratory of intelligent Education Technology and Application of Zhejiang Province, Zhejiang Normal University, Jinhua, China. [5]School of Foreign Studies, China University of Petroleum, Qingdao, China. [6]Shanghai Center for Research in English Language Education, Shanghai International Studies University, Shanghai, China. [7]Department of Radiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China. [8]Department of Radiology, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China. [9]Department of Rehabilitation, Guangxi International Zhuang Medicine Hospital, No. 8 Qiuyue Road, Nanning, China.

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The purpose of this study was to investigate the characteristics of different frequency bands in the spontaneous brain activity among patients with acute basal ganglia ischemic stroke (BGIS).In the present study, thirty-four patients with acute BGIS and forty-four healthy controls were examined by resting-state functional magnetic resonance imaging (rs-fMRI) from May 2019 to December 2020. Two amplitude methods including amplitude of low-frequency fluctuations (ALFF) and fractional ALFF (fALFF) calculated in three frequency bands (conventional frequency band: 0.01-0.08 Hz; slow-5 frequency band: 0.01-0.027 Hz; and slow-4 frequency band: 0.027-0.073 Hz) were conducted to evaluate the spontaneous brain activity in patients with acute BGIS and healthy controls (HCs). Gaussian Random Field Theory (GRF, voxel p < 0.01 and cluster p < 0.05) correction was applied. The correlation analyses were performed between clinical scores and altered metrics values.Compared to HCs, patients with acute BGIS showed decreased ALFF in the right supramarginal gyrus (SMG) in the conventional and slow-4 bands, increased fALFF in the right middle frontal gyrus (MFG) in the conventional and slow-4 bands, and increased fALFF in the bilateral caudate in the slow-5 frequency band. The fALFF value of the right caudate in the slow-5 frequency band was negatively correlated with the clinical scores.In conclusion, this study showed the alterations in ALFF and fALFF in three frequency bands between patients with acute BGIS and HCs. The results reflected that the abnormal LFO amplitude might be related with different frequency bands and promoted our understanding of pathophysiological mechanism in acute BGIS.Copyright © 2022 Xuemei Quan et al.

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出版当年[2022]版：

大类 | 4 区医学

小类 | 4 区神经科学

最新[2023]版：

大类 | 4 区医学

小类 | 4 区神经科学

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出版当年[2022]版：

Q3 NEUROSCIENCES

最新[2023]版：

Q2 NEUROSCIENCES

影响因子： 3 最新[2023版] 3.4 最新五年平均 3.1 出版当年[2022版] 4.1 出版当年五年平均 3.144 出版前一年[2021版] 3 出版后一年[2023版]

第一作者：

第一作者机构： [1]Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China. [2]Department of Neurology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China.

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通讯作者：

通讯机构： [3]School of Teacher Education, Zhejiang Normal University, Jinhua, China. [4]Key Laboratory of intelligent Education Technology and Application of Zhejiang Province, Zhejiang Normal University, Jinhua, China.

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