An MRI study of typical anatomical variants of the anterior communicating artery complex

xlomafota13 shared this article with you from Inoreader An MRI study of typical anatomical variants of the anterior communicating artery complex Via radiol anat Surg Radiol Anat. 2021 Jun 16. doi: 10.1007/s00276-021-02782-x. Online ahead of print. ABSTRACT PURPOSE: This magnetic resonance imaging study examined the most frequent anatomical variants of the anterior communicating artery (ACoA) complex of the cerebral arterial circle, and aimed to determine whether they were associated with ACoA complex aneurysm. METHODS: The study enrolled 669 patients. Using three-dimensional time-of-flight magnetic resonance angiography, 617 p atients were classified into the following groups based on the anatomical variation in the ACoA complex: no ACoA complex anomaly; ACoA complex aneurysm; and vascular anomaly distant from the cerebral arterial circle. RESULTS: Of the 617 classified subjects, the classical anatomical description applied to 48.73% in the no ACoA complex anomaly group and 37.5% in the ACoA complex aneurysm group. One variant (left anterior cerebral artery segment A1 hypoplasia) was significantly more frequent in the ACoA complex aneurysm group. There was no sex difference in the prevalence of any variant. CONCLUSIONS: Anatomical variants of the ACoA complex of the cerebral arterial circle were found in almost half of the subjects. One variant seemed to be associated with a higher likelihood of an aneurysm, but causality could not be inferred. PMID:34132869 | DOI:10.1007/s00276-021-02782-x View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.