Summary of aneurysm characteristics by size/location

Location<7 mm7–12 mm13–24 mm>24 mm
Anterior (ICA/MCA/ACA)2121
Posterior (vertebrobasilar, PcomA, PCA)1221
  • Note:—PcomA indicates posterior communicating artery; PCA, posterior cerebral artery; ACA, anterior cerebral artery.