Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2001 Feb;22(2):305–310.

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © American Society of Neuroradiology

PMC Copyright notice

fig 1. — A–C, Axial MR angiographic source images through the midbrain of a 31-year-old male volunteer obtained using a 3D-TOF sequence (31/7/1) with 0.81 mm between images and displayed from caudal (A) to cranial (C). The AChA can be seen bilaterally. The left AChA (long arrow) is visible from its point of origin from the carotid artery (A) throughout its cisternal segment (A and B) and as it runs along the medial aspect of the uncus and curves laterally along the medial aspect of the temporal lobe (gyrus ambiens) before crossing the cisterna ambiens to enter the choroidal fissure (C). The AChA on the right side (short arrow) is visible at its origin (B) and along its cisternal course (C).