Delay-encoded harmonic imaging with an ultrasound system
US11385349B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2017 |
| Grant date | Jul 12, 2022 |
| Priority date | — |
| Expiry date | Jul 12, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods for ultrasound imaging using a delay-encoded harmonic imaging (“DE-HI”) technique is provided. An ultrasound pulse sequence is coded using temporal delays between ultrasound emissions within a single transmission event. This coded scheme allows for harmonic imaging to be implemented. The temporal time delay-codes are applied temporally to multiple different ultrasound emissions within a single transmission event, rather than spatially across different transmitting elements. The received radio frequency (“RF”) signals undergo a decoding process in the frequency domain to recover the signals, as they would be obtained from standard single emissions, for subsequent compounding. As one specific example, a one-quarter period time delay can be used to encode second harmonic signals from each angle emission during a single multiplane wave (“MW”) transmission event, rather than inverting the polarity of the pulses as in conventional MW imaging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.