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.
Demonstration of the two measured distances used to calculate the ductal curvature index. L1 represents the straight short distance between duct origin from aorta and duct insertion onto pulmonary arteries (PA). L2 represents the entire length of the duct between the aortic origin and the insertion of the duct onto PA.
