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.
Top: contrast-enhanced ultrasound images of rat thigh muscle as a function of time after a high-energy ultrasound pulse with the muscle at rest or given a 1-Hz electrical stimulation. Bottom: greater plateau video intensity (red) corresponding to a larger number of microbubbles in the imaged volume of the stimulated muscle.
