title: Three Dimensional Microanatomy of the Ophthalmic Artery: Spontaneous Intracranial-Extracranial Anastomosis Site within the Orbital Cavity.
abstract: OBJECTIVE
  The aim was to evaluate three-dimensional structure of the ophthalmic artery (OphA).
  
  
  METHODS
  The raw data of the Three-dimensional Computerized Tomography Angiography (3D-CTA) were transferred to computer and recorded in a software program.
  
  
  RESULTS
  The study group consisted of 45 (24 female and 21 male) patients. The mean age of the patients was 56 ± 9.5 years. It was found that the entry point of the OphA to the orbital cavity was inferior to the optic foramen in 29 (64.44%) of the cases. The length of the postcanalicular-prelacrimal was 0.54 ± 0.13 centimeters at the right side and 0.51 ± 0.13 centimeters at the left side. The distance of the postlacrimal-presupraorbital segment was 0.43 ± 0.11 centimeters at the right and left sides. The location of the anastomosing site was 0.97 ± 0.42 centimeters from the supraorbital notch.
  
  
  CONCLUSIONS
  The results of this study showed us that this technique could be used in the evaluation of the three-dimensional microsurgical anatomy of the OphA and its critical extracranial-intracranial anastomosing site.
authors.affiliation: Ondokuzmayis University, School of Medicine, Department of Neurosurgery, Samsun, Turkey.
authors.forename: Enis
authors.initials: E
authors.lastname: Kuruoglu
authors.forename: Cengiz
authors.initials: C
authors.lastname: Cokluk
authors.forename: Abdullah Hilmi
authors.initials: AH
authors.lastname: Marangoz
authors.forename: Kerameddin
authors.initials: K
authors.lastname: Aydin
mesh_terms: D000368:Aged; D002533:Cerebral Angiography; D005260:Female; D005624:Frontal Bone / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009880:Ophthalmic Artery / Q000000981:diagnostic imaging*; D009915:Orbit / Q000000981:diagnostic imaging*