Figure 3.
Histogram‐normalized kilovoltage image of a representative patient, outlining the subregions selected on the lateral image (a) and PA image (b) for registration. C1C3 and C3C5, cervical vertebrae 1–3 and 3–5, respectively.
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.