Figure 4.
Power Doppler ultrasound imaging of the supratrochlear artery (red arrowheads) and its branches. White square, footprint of the ultrasound transducer. White dashed line, border of the supratrochlear foramen.
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.