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Here, we investigated whether WMH volume is associated with brain network alterations in midlife adults. Two hundred and fifty\u2010four participants from the Coronary Artery Risk Development in Young Adults study were selected and stratified by WMH burden into Lo\u2010WMH (mean age\u00a0=\u00a050\u2009\u00b1\u20093.5\u2009years) and Hi\u2010WMH (mean age\u00a0=\u00a051\u2009\u00b1\u20093.7\u2009years) groups of equal size. We constructed group\u2010level covariance networks based on cerebral blood flow (CBF) and gray matter volume (GMV) maps across 74 gray matter regions. Through consensus clustering, we found that both CBF and GMV covariance networks partitioned into modules that were largely consistent between groups. Next, CBF and GMV covariance network topologies were compared between Lo\u2010 and Hi\u2010WMH groups at global (clustering coefficient, characteristic path length, global efficiency) and regional (degree, betweenness centrality, local efficiency) levels. At the global level, there were no between\u2010group differences in either CBF or GMV covariance networks. In contrast, we found between\u2010group differences in the regional degree, betweenness centrality, and local efficiency of several brain regions in both CBF and GMV covariance networks. Overall, CBF and GMV covariance analyses provide evidence that WMH\u2010related network alterations are present at midlife.<\/jats:p>","DOI":"10.1002\/hbm.25876","type":"journal-article","created":{"date-parts":[[2022,4,16]],"date-time":"2022-04-16T02:09:53Z","timestamp":1650074993000},"page":"3680-3693","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Associations of white matter hyperintensities with networks of gray matter blood flow and volume in midlife adults: A coronary artery risk development in young adults magnetic resonance imaging substudy"],"prefix":"10.1002","volume":"43","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1257-1348","authenticated-orcid":false,"given":"William S. 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