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.
Pre- and postcannulation chest radiograph with 31F Avalon cannula. The chest radiograph on the left demonstrates a precannulation measurement of catheter length from the approximate level of insertion to the atriocaval junction. The right chest radiograph shows the cannula in situ at a depth of 25 cm.
