title: Predictable morphometric parameters for rupture of intracranial aneurysms - a series of 142 operated aneurysms.
abstract: OBJECTIVE
  Intracranial aneurysm rupture is followed by high mortality and morbidity. In order to understand the aneurysm's natural course, it is necessary to recognize the predisposing factors for the rupture.
  
  
  METHODS
  Analysis included 142 operated aneurysms (94 hemorrhaging and 48 unruptured) in the period from 2008 to 2010.
  
  
  RESULTS
  The ratio between the width of the aneurysm neck and diameter of the carrying blood vessel - artery in ruptured aneurysms (OR) was 1.58 ± 0.61, and in unruptured aneurysms 1.14 ± 0.52 (p < 0.01). Aspect ratio of ruptured aneurysm was 1.89 ± 0.59, and in unruptured 1:33 ± 0.17. The angle of inclination of ruptured aneurysms was 139.22 ± 21.53, while in unruptured aneurysms it was 101.73 ± 21.26.
  
  
  CONCLUSIONS
  Based on the results of our research, a predictive model of morphometric characteristics of the vessel bearing the aneurysm to rupture can be identified: an irregular shape of the aneurysm, AR > 1.6, OR > 1.5 and inclination angle > 135 deg.
authors: Neurosurgical Clinic, Clinical Center of Serbia, Belgrade, Serbia. i.m.nikolic@gmail.com
authors: Igor
authors: I
authors: Nikolic
authors: Goran
authors: G
authors: Tasic
authors: Vojislav
authors: V
authors: Bogosavljevic
authors: Branislav
authors: B
authors: Nestorovic
authors: Vladimir
authors: V
authors: Jovanovic
authors: Zvezdana
authors: Z
authors: Kojic
authors: Igor
authors: I
authors: Djoric
authors: Branko
authors: B
authors: Djurovic
mesh_terms: D000328:Adult; D000368:Aged; D000465:Algorithms; D017542:Aneurysm, Ruptured / Q000473:pathology* / Q000601:surgery*; D015901:Angiography, Digital Subtraction; D002533:Cerebral Angiography; D002536:Cerebral Arteries / Q000473:pathology; D057510:Endovascular Procedures; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000473:pathology* / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D019635:Neurosurgical Procedures; D011379:Prognosis; D012015:Reference Standards; D012307:Risk Factors; D013345:Subarachnoid Hemorrhage / Q000473:pathology / Q000601:surgery; D055815:Young Adult