Systematic validation of structural brain networks in cerebral small vessel disease

Anna Dewenter, Benno Gesierich, Annemieke ter Telgte, Kim Wiegertjes, Mengfei Cai, Mina A. Jacob, José P. Marques, David G. Norris, Nicolai Franzmeier, Frank Erik de Leeuw, Anil M. Tuladhar, Marco Duering*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

9 Citations (Scopus)
31 Downloads (Pure)

Abstract

Cerebral small vessel disease (SVD) is considered a disconnection syndrome, which can be quantified using structural brain network analysis obtained from diffusion MRI. Network analysis is a demanding analysis approach and the added benefit over simpler diffusion MRI analysis is largely unexplored in SVD. In this pre-registered study, we assessed the clinical and technical validity of network analysis in two non-overlapping samples of SVD patients from the RUN DMC study (n = 52 for exploration and longitudinal analysis and n = 105 for validation). We compared two connectome pipelines utilizing single-shell or multi-shell diffusion MRI, while also systematically comparing different node and edge definitions. For clinical validation, we assessed the added benefit of network analysis in explaining processing speed and in detecting short-term disease progression. For technical validation, we determined test-retest repeatability. Our findings in clinical validation show that structural brain networks provide only a small added benefit over simpler global white matter diffusion metrics and do not capture short-term disease progression. Test-retest reliability was excellent for most brain networks. Our findings question the added value of brain network analysis in clinical applications in SVD and highlight the utility of simpler diffusion MRI based markers.

Original languageEnglish
Pages (from-to)1020-1032
JournalJournal of Cerebral Blood Flow and Metabolism
Volume42
Issue number6
Early online date20 Dec 2021
DOIs
Publication statusPublished - 1 Jun 2022
Externally publishedYes

Keywords

  • Cerebral small vessel disease
  • connectome
  • diffusion MRI
  • network analysis
  • quantitative MRI marker

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