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.
Four chamber(a) view shows dilated right atrium and right ventricle, dilated coronary sinus. The terminal unroofing of the coronary sinus is demonstrated by arrow in the subxiphoid image, (b) RA-right atrium, LA-left atrium, CS-coronary sinus, RV-right ventricle, LV-left ventricle
