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.
Differences in signal contrast and the signal-to-noise ratio (SNR) as a function of distance from the cortical region. (A) Photograph annotated with the scanning direction of the fiber-probe pair. Contrast (B) and SNR (C) as a function of the position of the optical fiber, which was attached to the phased-array ultrasound probe. Plots show mean ± standard deviation values for 15 measurements.
