A modulated excitation imaging system for microultrasound

Weibao Qiu, Yanyan Yu, Guofeng Li, Ming Qian, Hairong Zheng, Lei Sun

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Micro-ultrasound (micro-US), also known as ultrasound biomicroscope, is able to delineate small structures with fine spatial resolution. However, micro-US suffers limited depth of penetration due to significantly large attenuation at high frequencies. Modulated excitation imaging has displayed the capability to improve the penetration depth, while maintaining the spatial resolution. But the effectiveness of this technique in micro-US has not been fully demonstrated. This paper presents the development of a novel system to achieve modulated excitation imaging with high programmability and flexibility to satisfy various micro-US studies. Test results show that the proposed modulated excitation imaging system can acquire up to 20 dB signal-to-noise ratio improvement and 83% increase of penetration depth in contrast to traditional short-pulse imaging method. In vivo experiment on the dorsal skin of a human hand demonstrates good performance of the programmable modulated excitation imaging system.
Original languageEnglish
Title of host publication2013 IEEE International Ultrasonics Symposium, IUS 2013
Pages2042-2044
Number of pages3
DOIs
Publication statusPublished - 1 Dec 2013
Event2013 IEEE International Ultrasonics Symposium, IUS 2013 - Prague, Czech Republic
Duration: 21 Jul 201325 Jul 2013

Conference

Conference2013 IEEE International Ultrasonics Symposium, IUS 2013
Country/TerritoryCzech Republic
CityPrague
Period21/07/1325/07/13

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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