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

. 2022 Oct 1;12(10):2391. doi: 10.3390/diagnostics12102391

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

© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

Four types of asymmetrical VA geometry on black blood enhanced MR and MRA. (A) Type 1 = unilateral contrast-enhanced VA + no visualization of VA on MRA; (B) Type 2 = unilateral enhanced VA + hypoplastic VA; (C) Type 3 = no enhanced VA + hypoplastic VA; (D) Type 4 = unilateral complete occlusion of VA + no visualization of VA.