Method for harmonic shear wave detection with a low frame rate ultrasound system
US11576655B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2018 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Jun 3, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/8993
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.