Parent artery size

Significant differences between anterior circulation aneurysm and posterior circulation intracranial aneurysm were found for the parent artery size (5.08 ± 1.8 mm vs. 3.95 ± 1.5 mm; p < 0.05) 1).

a: parent artery size

h: aneurysm dome depth

n: neck size or wide

1)
Tykocki T, Kostkiewicz B. Aneurysms of the anterior and posterior cerebral circulation: comparison of the morphometric features. Acta Neurochir (Wien). 2014 Sep;156(9):1647-54. doi: 10.1007/s00701-014-2173-y. Epub 2014 Jul 19. PubMed PMID: 25034507; PubMed Central PMCID: PMC4137168.