Methods for ultrasound system independent attenuation coefficient estimation
US12089996B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2018 |
| Grant date | Sep 17, 2024 |
| Priority date | — |
| Expiry date | Jul 7, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/52039
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods for estimating acoustic properties in a region-of-interest in a subject or other object being imaged using a reference frequency method (“RFM”) is described. Using this RFM technique, ultrasound data acquired at a given frequency are normalized by ultrasound data acquired at different frequencies (e.g., adjacent frequencies or otherwise) in order to provide estimations of the acoustic properties (e.g., attenuation coefficient, a backscatter coefficient, or both) that are independent of the ultrasound system used to acquire the underlying data. For instance, the amplitude of each frequency component can be normalized by a different frequency in the power spectrum to cancel out the system-dependent effects. Because the methods described in the present disclosure are system independent, they can be applied to any transducer geometry (e.g., linear or curved arrays) and using any beam pattern (e.g., focused or unfocused).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.