Mayo Foundation for Medical Education and Research
发明人:
Matthew W. Urban,Piotr Kijanka
申请号：
US16619502
公开号：
US20200163649A1
申请日:
2018.06.05
申请国别(地区):
US
年份:
2020
代理人:
摘要：
Methods for estimating the phase velocity of a shear wave from ultrasound data are described. An ultrasound system is used to measure one or more shear waves propagating in a region-of-interest in a subject, and from this data the phase velocity of the one or more shear waves can be estimated. In general, the phase velocity is estimated from a wavenumber spectrum computed from temporal frequency data generated by Fourier transforming the ultrasound data along one or more temporal dimensions. A multiple signal classification (i.e., MUSIC) technique is adapted to separate the temporal frequency data into signal and noise subspaces, from which wavenumber spectra can be estimated based, at least in part, on an estimation function.
