Prevalence of asymptomatic incidental aneurysms: A review of 2685 computed tomographic angiograms

Nitin Agarwal, Nihar B. Gala, Osamah J. Choudhry, Rachid Assina, Charles J. Prestigiacomo, Ennis J. Duffis, Chirag D. Gandhi

Research output: Contribution to journalReview articlepeer-review

11 Scopus citations


Objective Intracranial aneurysms are a public health issue with a potential for rupturing, causing significant morbidity/mortality. The prevalence of unruptured intracranial aneurysms, including those that are asymptomatic, varies widely, as it has been determined through autopsy studies as well as conventional angiography. However, computed tomography angiography, a less invasive procedure, has replaced the use of conventional angiography in the recent decades. The objective of the present study is to determine the prevalence of incidental aneurysms.

Methods The present study reviews all computed tomography angiography cases within the past decade at a single institution.

Results Of 2195 cases included in the study, 39 (1.8%) were found to have asymptomatic unruptured aneurysms.

Conclusions The numbers of asymptomatic incidental aneurysms have increased.

Original languageEnglish
Pages (from-to)1086-1090
Number of pages5
JournalWorld neurosurgery
Issue number6
StatePublished - Dec 1 2014


  • Aneurysms
  • Asymptomatic incidental aneurysms
  • Computed tomography angiography
  • CTA
  • Intracranial aneurysms
  • Prevalence
  • Unruptured aneurysms


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