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.
Noise smoothing was observed when demons deformable registration was used. (a) A baseline CT image region. (b) A matched region in the demons deformed follow-up scan. Note the change in lung parenchymal texture. (c) A matched region in the B-splines deformed follow-up scan. Lung parenchymal texture is similar to the texture observed in (a), although anatomic matching is inferior to (b).
