title: RELATION BETWEEN FLUORESCEIN ANGIOGRAPHIC AND SPECTRAL-DOMAIN OPTICAL COHERENCE TOMOGRAPHY FINDINGS OF BLOOD FLOW TURBULENCE AT ARTERIOVENOUS CROSSINGS IN THE RETINA.
abstract: OBJECTIVE
  To examine retinal blood flow at arteriovenous crossings using spectral-domain optical coherence tomography (SD-OCT).
  
  
  METHODS
  Retrospective observational case series of 11 arteriovenous crossings in 10 eyes examined by SD-OCT and fluorescein angiography on suspicion of manifest or imminent branch retinal vein occlusion.
  
  
  RESULTS
  Fluorescein angiographic evidence of turbulence was seen at 5 of 11 arteriovenous crossings, whereas laminar angiographic flow was intact at the crossing and downstream thereof at the remaining 6 crossings. On SD-OCT, chaotic reflectivity patterns were seen at the point of crossing and downstream thereof in all 5 cases with angiographic turbulence, whereas an intravascular trilayer SD-OCT pattern consistent with laminar flow was seen throughout the examined course of the vein in the eyes with laminar angiographic flow.
  
  
  CONCLUSIONS
  We examined retinal blood flow at and near arteriovenous crossings and found that SD-OCT may rival fluorescein angiography in the ability to demonstrate turbulent venous blood flow.
authors.affiliation: Department of Ophthalmology, Rigshospitalet, Glostrup, Denmark.
authors.forename: Anne
authors.initials: A
authors.lastname: Willerslev
authors.affiliation: Department of Ophthalmology, Rigshospitalet, Glostrup, Denmark.|Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
authors.forename: Xiao Qiang
authors.initials: XQ
authors.lastname: Li
authors.affiliation: Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.|Department of Ophthalmology, Zealand University Hospital, Roskilde, Denmark.
authors.forename: Inger Christine
authors.initials: IC
authors.lastname: Munch
authors.affiliation: Department of Ophthalmology, Rigshospitalet, Glostrup, Denmark.|Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
authors.forename: Michael
authors.initials: M
authors.lastname: Larsen
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D005451:Fluorescein Angiography / Q000379:methods*; D005654:Fundus Oculi; D006801:Humans; D008297:Male; D008875:Middle Aged; D012039:Regional Blood Flow / Q000502:physiology*; D012160:Retina / Q000473:pathology* / Q000503:physiopathology; D012161:Retinal Artery / Q000473:pathology / Q000503:physiopathology*; D012169:Retinal Vein / Q000473:pathology / Q000503:physiopathology*; D012170:Retinal Vein Occlusion / Q000175:diagnosis* / Q000503:physiopathology; D012189:Retrospective Studies; D041623:Tomography, Optical Coherence / Q000379:methods*