Figure 2.
BA plaque location (A) and the measurement of mid-BA (B) and BA-VA angles (C). BA, basilar artery; VA, vertebral artery.
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.