title: [Small-world properties of the brain functional networks in patients with chronic ischemic stroke].
abstract: OBJECTIVE
  To explore the characteristics of small-world properties of the brain functional networks in patients with chronic ischemic stroke.
  
  
  METHODS
  A total of 42 stroke patients and 25 matched healthy volunteers were scanned with BOLD-fMRI and the whole-brain functional networks were constructed.Two sample t-tests were used to evaluate the changes.The properties including Eglobal, Elocal, Lp, Cp, γ, λ, σ.
  
  
  RESULTS
  Within 0.1≤sparsity≤0.2, both groups satisfied the small-world properties(σ>1). However, the Cp and Elocal of stroke group was significantly lower (P<0.05).
  
  
  CONCLUSIONS
  The networks in both groups still satisfied the small-world but parts of the properties in patients have changed. The reduced properties including Cp and Elocal.These changes will provide a new perspective for pathophysiological mechanism and also be helpful for understanding this disease.
authors.affiliation: Department of Radiology, Zhongda Hospital, Southeast University, Nanjing 210009, China.
authors.forename: Yaqing
authors.initials: Y
authors.lastname: Huang
authors.forename: Bin
authors.initials: B
authors.lastname: Liu
authors.forename: Ming
authors.initials: M
authors.lastname: Yang
authors.forename: Lingling
authors.initials: L
authors.lastname: Zhang
authors.forename: Yuting
authors.initials: Y
authors.lastname: Liu
authors.forename: Yaru
authors.initials: Y
authors.lastname: Yang
authors.forename: Huijun
authors.initials: H
authors.lastname: Li
mesh_terms: D001921:Brain; D002545:Brain Ischemia; D006801:Humans; D008279:Magnetic Resonance Imaging; D020521:Stroke