Retrospective dynamic transmit focusing for spatial compounding
US8317712B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2007 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Jan 19, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/8997
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasonic diagnostic imaging system transmits a plurality of focused beams normal to the plane of a transducer aperture and receives multiple receive lines in response to each transmitted beam. Sub-apertures of the transducer aperture are defined by apodization and signals of the sub-apertures are aligned and combined to produce signals exhibiting the effect of transmit steering at different angles with respect to the sub-apertures. The steered signals are detected and the detected signals relating to common points in an image field are combined. The combined detected signals are used to produce an ultrasound image with reduced speckle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.