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.
Example respiratory trace and the corresponding mapping of the temporal axis into phase (%). For each respiratory cycle, phase indicates the temporal position relative to maximum inhale, which is denoted as 0%. The different phase binning conventions for (a) 4DCT and (b) 4DCBCT are illustrated.
