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Characterization of white matter microstructural abnormalities associated with cognitive dysfunction in cerebral small vessel disease with cerebral microbleeds

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单位: [1]Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 324 Jing-wu Road, Jinan, Shandong 250021, China [2]Faculty of Psychology, Southwest University, Chongqing 400715, China [3]Key Laboratory of Cognition and Personality (Ministry of Education), Chongqing 400715, China [4]Research Center for Brain-inspired Intelligence, Institute of Automation, Chinese Academy of Sciences, ZhongGuanCun East Rd. 95#, Beijing 100190, China [5]Department of Radiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jing-wu Road No. 324, Jinan 250021, China [6]Department of Radiology, Beijing Friendship Hospital, Capital Medical University, 95 Yong-an Road, Xicheng District, Beijing 100050, China
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关键词: Cerebral small vessel disease Cerebral microbleeds Diffusion tensor imaging Tract-based spatial statistics Cognitive dysfunction

摘要:
Diffusion tensor imaging (DTI) is recommended as a sensitive method to explore white matter (WM) microstructural alterations. Cerebral small vessel disease (CSVD) may be accompanied by extensive WM microstructural deterioration, while cerebral microbleeds (CMBs) are an important factor affecting CSVD.Fractional anisotropy (FA), mean diffusivity (MD), axial diffusivity (AD) and radial diffusivity (RD) images from 49 CSVD patients with CMBs (CSVD-c), 114 CSVD patients without CMBs (CSVD-n), and 83 controls were analyzed using DTI-derived tract-based spatial statistics to detect WM diffusion changes among groups.Compared with the CSVD-n and control groups, the CSVD-c group showed a significant FA decrease and AD, RD and MD increases mainly in the cognitive and sensorimotor-related WM tracts. There was no significant difference in any diffusion metric between the CSVD-n and control groups. Furthermore, the widespread regional diffusion alterations among groups were significantly correlated with cognitive parameters in both the CSVD-c and CSVD-n groups. Notably, we applied the multiple kernel learning technique in multivariate pattern analysis to combine multiregion and multiparameter diffusion features, yielding an average accuracy >77 % for three binary classifications, which showed a considerable improvement over the single modality approach.We only grouped the study according to the presence or absence of CMBs.CSVD patients with CMBs have extensive WM microstructural deterioration. Combining DTI-derived diffusivity and anisotropy metrics can provide complementary information for assessing WM alterations associated with cognitive dysfunction and serve as a potential discriminative pattern to detect CSVD at the individual level.Copyright © 2022 The Author(s). Published by Elsevier B.V. All rights reserved.

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出版当年[2022]版:
大类 | 2 区 医学
小类 | 2 区 精神病学 2 区 临床神经病学
最新[2025]版:
大类 | 2 区 医学
小类 | 2 区 临床神经病学 2 区 精神病学
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出版当年[2021]版:
Q1 CLINICAL NEUROLOGY Q1 PSYCHIATRY
最新[2023]版:
Q1 CLINICAL NEUROLOGY Q1 PSYCHIATRY

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第一作者单位: [1]Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 324 Jing-wu Road, Jinan, Shandong 250021, China
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