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.
Visualization of the Euclidean distance map transformation. This example shows one slice of the primary PTV (PTVp) as a binary mask (left) and the distance map transformation (right). Voxels within the PTVp have positive values, voxels outside the PTVp have negative values.
