期刊
HUMAN BRAIN MAPPING
卷 42, 期 15, 页码 4940-4957出版社
WILEY
DOI: 10.1002/hbm.25590
关键词
data fusion; functional connectivity; major depressive disorder; neuroimaging; resting brain networks; structural connectivity; toolbox
资金
- Ontario Brain Institute
There is a growing interest in exploring the data fusion analysis of functional and structural imaging sources. A novel processing pipeline, FATCAT-awFC, was developed to identify connectivity changes in MDD patients compared to healthy individuals, revealing significant differences in specific brain networks. By combining structural and functional data, this method enhances our understanding of the intricate relationship between structural and functional connectivity in depression.
There is a growing interest in examining the wealth of data generated by fusing functional and structural imaging information sources. These approaches may have clinical utility in identifying disruptions in the brain networks that underlie major depressive disorder (MDD). We combined an existing software toolbox with a mathematically dense statistical method to produce a novel processing pipeline for the fast and easy implementation of data fusion analysis (FATCAT-awFC). The novel FATCAT-awFC pipeline was then utilized to identify connectivity (conventional functional, conventional structural and anatomically weighted functional connectivy) changes in MDD patients compared to healthy comparison participants (HC). Data were acquired from the Canadian Biomarker Integration Network for Depression (CAN-BIND-1) study. Large-scale resting-state networks were assessed. We found statistically significant anatomically-weighted functional connectivity (awFC) group differences in the default mode network and the ventral attention network, with a modest effect size (d < 0.4). Functional and structural connectivity seemed to overlap in significance between one region-pair within the default mode network. By combining structural and functional data, awFC served to heighten or reduce the magnitude of connectivity differences in various regions distinguishing MDD from HC. This method can help us more fully understand the interconnected nature of structural and functional connectivity as it relates to depression.
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