Ultrasound based quantitative motion measurement using speckle size estimation
US6318179A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2000 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Jun 20, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/044
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ultrasound system determines the relative movement in a first direction (F1) of first matter, such as blood flow, and second matter, such as an artery wall, in a subject under study (S). A beam (B1) of ultrasound waves defining a plurality of beam positions (BP1 and BP2) and beam axes (A1and A2) are moved in scan directions having components parallel to direction F1. First and second blocks of data representing the first and second matter, respectively, are generated. A processor (20) performs an estimation of speckle size on first data to obtain a first result, and performs analysis of the second block of data to obtain a second result. The two results are analyzed to obtain a measure of the relative movement of the first and second matter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.