Method for estimating tissue velocity vectors and tissue deformation from ultrasonic diagnostic imaging data
US8029444B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 30, 2004 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Jun 14, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30048
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method is disclosed for estimating tissue velocity vectors and oriented strain from ultrasonic diagnostic imaging data. Reference points are defined from evaluation of image data derived from reflected ultrasonic beams in order to determine the direction of motion and the velocity vector of the reference points. The velocity of motion for corresponding reference points between two successive image frames is determined by applying a particle image velocimetry technique. Components of the tissue strain is then obtained from time integration of the strain-rate that is determined from the gradient of velocity estimated from the velocity data in two or more reference points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.