Mayo Foundation for Medical Education and Research
发明人:
Pengfei Song,Shigao Chen
申请号：
US16764150
公开号：
US20200275913A1
申请日:
2018.11.14
申请国别(地区):
US
年份:
2020
代理人:
摘要：
Systems and methods for harmonic shear wave detection using low frame rate ultrasound, or a three-dimensional (3D) volumetric scan, are provided. As one example, spurious motion sources, such as intrinsic tissue motion and waves that are not at the incident wave harmonic frequency, are removed based on a scanning sequence in which repeated acquisitions from a given subvolume occur closely in time so as to render effects of the spurious motions negligible. As another example, sampling frequency and center frequency are selected such that the spurious motion signal spectra do not overlap with aliased shear wave motion spectra, such that the spurious motions can be filtered.
