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.
The acquired frame 123 and frame 180 of a total of 256 frames from a rat brain imaging experiment. The limited dynamic range of the resolved Doppler phase can be seen clearly: the cross-sectional profiles of different vessels are only prominent at particular time intervals while in the averaged profile, these vessels all stood out from the background.
