Combination of air-coupled acoustic micro-tapping and phase sensitive OCT for 4-D real-time, non-contact imaging of soft tissue elastic moduli

Shaozhen Song, Lukasz Ambrozinski, Soon Joon Yoon, Mitchell Kirby, Liang Gao, Ivan Pelivanov, David Li, Tueng T. Shen, Ruikang Wang, Matthew O'Donnell

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Elastography plays a key role in characterizing soft tissue. Although it has found widespread use in clinical diagnostics, nearly all methods require direct physical contact with tissue and can even be invasive. However, for a number of applications (ophthalmic, for instance) physical contact is not desired and may not even be allowed. Recently, we proposed a fundamentally new approach to 4-D dynamic elastography using non-contact mechanical stimulation (e.g. from air) of soft media with an air-coupled focused US transducer (we call it acoustic micro-tapping, AμT) combined with ultrafast phase sensitive (PhS) OCT [1]. Here, we report on new AμT-OCT system developments and new results obtained in ex-vivo and in-vivo studies on eye and skin.

Original languageEnglish (US)
Title of host publication2017 IEEE International Ultrasonics Symposium, IUS 2017
PublisherIEEE Computer Society
ISBN (Electronic)9781538633830
DOIs
StatePublished - Oct 31 2017
Event2017 IEEE International Ultrasonics Symposium, IUS 2017 - Washington, United States
Duration: Sep 6 2017Sep 9 2017

Publication series

NameIEEE International Ultrasonics Symposium, IUS
ISSN (Print)1948-5719
ISSN (Electronic)1948-5727

Other

Other2017 IEEE International Ultrasonics Symposium, IUS 2017
CountryUnited States
CityWashington
Period9/6/179/9/17

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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