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.
The images from the short delay: (a) subtraction images from control and label pairs; (b) T1 map calculated from two reference images; (c) proton density map calculated from two reference images; (d) perfusion images with transit delay correction.
