An official website of the United States government
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.
Axial CT images from a representative patient demonstrate the aortic arch initiation (yellow arrows), defined at the most superior slice level containing the right pulmonary artery (white arrow).