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.
Illustration of interfractional esophageal motion and its dosimetric impact for a patient with a grade-3 esophageal toxicity. An upper esophageal slice is shown in the left (A, C, and E), and a lower esophageal slice is shown in the right (B, D, and F) with 100% isodose line (yellow), PTV (red), and esophagus (green) contours.
