System and method of operating microfabricated ultrasonic transducers for harmonic imaging
US7635332B2 · kind B2 · utility
2Cited by
59References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2004 |
| Grant date | Dec 22, 2009 |
| Priority date | — |
| Expiry date | May 6, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/8959
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A capacitive microfabricated ultrasonic transducer (cMUT) is operated to improve its performance during harmonic imaging in non-linear media, such as in contrast agents or in human tissue. The cMUT is operated by inverting the transmit waveform to adjacently spaced azimuth elements, and combining at least two additional firings without adjacent inversion, for each transmit vector, thereby canceling the second harmonic generation of the cMUT; and thus, the performance of harmonic imaging using the cMUTs can achieve improvement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.