Ultrasonic direct strain estimation using temporal and spatial correlation
US8235898B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2005 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Jun 16, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B8/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Strain is directly estimated in ultrasound elasticity imaging without computing displacement or resorting to spectral analysis. Conventional ultrasound elasticity imaging relies on calculating displacement and strain is computed from a derivative of the displacement. However, for typical parameter values used in ultrasound elasticity imaging, the displacement can be as large as a hundred times or displacement differences. If a tiny error in the calculation of displacement occurs, this could drastically affect the calculation of strain. By directly estimating strain, image quality is enhanced and the reduction in computational effort facilitates commercialization to aid in diagnosing disease or cancerous conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.