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.
A 42-year-old woman with atrial fibrillation. A pulmonary vein CT for pre-ablation mapping shows a filling defect in the left atrial appendage. Its course on the dynamic images appears to be a pectinate muscle (arrow). RAA, right atrial appendage.
