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.
An example HNC IMRT: (a) three-dimensional view of PTV in red; (b) PTV and dose distribution outlined on axial CT slice; (c) diffusion weighted imaging (DWI) image and (d) the corresponding ADC map assisted CTV delineation (purple segments) in (b)
