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.
Echocardiography with agitated saline injection in a patient with a sinus venosus atrial septal defect. A. shows a four-chamber view prior to the injection of agitated saline, highlighting the right ventricular enlargement and hypertrophy associated with severe pulmonary hypertension. B.-D. show the progress of the bubbles after the 2nd, 4th, and 6th beats, respectively. LA = left atrium; LV = left ventricle; RA = right atrium; RV = right ventricle.
