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.
Representative transesophageal echocardiographic images in four cases showing SEC grades 1+ to 4+, respectively. Note that with SEC grade 1+, minimal echogenicity can be seen within the left atrial appendage (LAA) and that with SEC grade 4+, the swirling pattern is remarkable compared with SEC grade 3+. LA, left atrium; LV, left ventricle.
This work is licensed under a