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.
Illustration of the impact of signal dynamics on d-factor, using 2-fold SUPER T1-mapping acceleration. The d-factor is 1.2 when both aliasing signals have T1 of 800ms, and rises to 3.9 when T1 is 200ms. When T1 is reduced, the signal grows faster, resulting in a wider spectrum, which in turn causes more overlapping (arrows) and elevates the d-factor.
