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Review
. 1990 Dec;48(4):448-53.
doi: 10.1590/s0004-282x1990000400008.

[Microsurgical anatomy of the anterior choroidal artery]

[Article in Portuguese]
A Ferreira  1 , F M Braga
Affiliations
Review

[Microsurgical anatomy of the anterior choroidal artery]

[Article in Portuguese]
A Ferreira et al. Arq Neuropsiquiatr. 1990 Dec.

Abstract

Microdissection of 100 hemispheres from human cadavers were performed in order to study the anatomic characteristics of the anterior choroidal artery (AChA). One AChA per hemisphere was found. In 98% of hemispheres the AChA arose from the internal carotid artery (ACI) 2.4mm distal to the origin of the posterior communicating artery (ACoP) and 4.7mm proximal to the carotid bifurcation. One or more perforating branches arose from communicating segment of ACI in 29% of hemispheres. The average calibre of the cisternal portion was 0.9mm and the plexal portion 0.7mm. The most frequent branches of the cisternal portion pass to the optic tract, cerebral peduncle, uncus and lateral geniculate body. Anastomosis were found between branches of the AChA and posterior cerebral artery, ACoP, middle cerebral artery and ACI. The results are discussed.

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