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.
Two orthogonal X‐ray images acquired at the full exhale reference level of a liver tumor patient with the implanted fiducial markers before (a) and after (b) fusion. Markers (M1, M2, and M3) were reconstructed from planning CT of the location of the implanted fiducial markers and then were projected onto the X‐ray images.
