title: Prognostic value of hyperintense vessel signals on fluid-attenuated inversion recovery sequences in acute cerebral ischemia.
abstract: BACKGROUND
  Fluid-attenuated inversion recovery (FLAIR) sequences may reveal hyperintense vessel signals (HVS) at the acute stage of cerebral ischemia. The aim of this study was to test the hypothesis that HVS are associated with a worse outcome.
  
  
  METHODS
  We included 30 consecutive patients admitted within 12 h after onset of hemispheric cerebral ischemia. The outcome was assessed with the modified Rankin Scale at month 1.
  
  
  RESULTS
  Proximal HVS were present in 9 patients and distal HVS in 16. All patients with proximal occlusions on time-of-flight sequences had distal HVS on FLAIR. Patients with poor outcome at month 1 (modified Rankin Scale 3-6) more frequently had had HVS on MRI (12/13 vs. 4/17; p< 0.001).
  
  
  CONCLUSIONS
  Distal HVS found on FLAIR sequences within 12 h of acute cerebral ischemia are associated with a worse 1-month outcome.
authors.affiliation: Department of Neurology, Lille University Hospital, Lille, France.
authors.forename: Marie
authors.initials: M
authors.lastname: Girot
authors.forename: Jean-Yves
authors.initials: JY
authors.lastname: Gauvrit
authors.forename: Charlotte
authors.initials: C
authors.lastname: Cordonnier
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Pruvo
authors.forename: Ana
authors.initials: A
authors.lastname: Verdelho
authors.forename: Didier
authors.initials: D
authors.lastname: Leys
authors.forename: Xavier
authors.initials: X
authors.lastname: Leclerc
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001921:Brain / Q000098:blood supply* / Q000473:pathology; D002545:Brain Ischemia / Q000473:pathology*; D002536:Cerebral Arteries / Q000473:pathology*; D038524:Diffusion Magnetic Resonance Imaging; D005260:Female; D006801:Humans; D007089:Image Enhancement; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D020127:Recovery of Function; D013997:Time Factors