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.
Intra‐ and interfraction motion variations in the SI direction of the first three fractions from three representative patients. The green lines are the tumor motion excursions extracted from the correlation model. The red points are the tumor positions acquired from an orthogonal X ray image system during the treatment delivery.
