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.
(a) Spatial-temporal map of the bladder wall motion in response to acoustic radiation force. Dotted lines represent the least square regression for group velocity calculation. The color shows the amplitude of the particle velocity in mm/s. (b) Phase velocity dispersion curve from the two-dimensional Fourier analysis of the displacement data and Lamb wave fit for calculation of the elasticity.
