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.
Three-dimensional (3D) treatment plans with and without gating (transverse slides, dose-wash). Left side: 3D treatment planning without deep-inspiration breathold (DIBH) with normal breathing; right side: the same patient planned using gated breathing with DIBH. Planning target volume (PTV) contoured in red, heart contoured in purple, left ventricle contoured in green, left anterior descending artery (LAD) contoured in yellow
