Shigao Chen,James F. Greenleaf,Heng Zhao,Carolina Amador Carrascal
申请号：
US14027476
公开号：
US09237878B2
申请日:
2013.09.16
申请国别(地区):
US
年份:
2016
代理人:
摘要：
A method for generation and analysis of shear waves in a subject with an ultrasound system. Multiple short ultrasound push pulses are applied, as a set and optionally more than once, to one or more push origins at the subject to produce first and second shear waves of large amplitudes and desired spatial distributions, which are separated in space and time and which have opposite polarity such that initial movements of the subject tissue, respectively caused by the first and second shear waves, occur in opposite directions. At least one mechanical property of the subject (including that represented by shear wave group velocity, phase velocity, and attenuation of a shear wave) is determined based at least in part on a distance between wavefronts of the first and second shear waves.
