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.
Wave intensity analysis (WIA) at the midpoint of the main, left, and right pulmonary arteries (MPA, LPA, and RPA, respectively). Forward and backward running compression waves (FCW, BCW) are distinguished from forward and backward running expansion waves (FEW, BEW).
