Fig. 1.
Neck computed tomography image of a patient that was used as a template for the phantom shape. The region of interest in the left parapharyngeal space indicates the position for insertion of low‐contrast signals.
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.