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.
Coronary angiogram with injection of radiographic contrast medium into the right coronary artery (RCA) and complete filling of the proximally occluded (red circle) left anterior descending coronary artery (LAD) via collateral channels (arrows).
