Abstract
The ACoA connects both proximal parts of the anterior cerebral artery (ACA) and is the fundamental anastomotic part of the circle of Willis. It usually lies above the optic chiasm and within the lamina terminalis cistern. Its average length is 1.2–4.0 mm and average diameter, 1.2–1.7 mm [1, 9, 12, 20, 21]. A normal ACoA, defined as the artery connecting the right and left ACA through a single lumen, is found in only about 40% of cadaver brains [1, 20, 21]. ACoA anomalies, including plexiform configuration, fenestration, duplication, and other variations, are observed in the other 60%.
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Fujii, T. (2011). Perforating Branches of the Anterior Communicating Artery: Anatomy and Infarction. In: Takahashi, S. (eds) Neurovascular Imaging. Springer, London. https://doi.org/10.1007/978-1-84882-134-7_4
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