Abstract

Elastography is a technique that measures and maps the local elastic property of biological tissues. Aiming for detection of micron-scale inclusions, various optical elastography, especially optical coherence elastography (OCE), techniques have been investigated over the past decade. The challenges of current optical elastography methods include the decrease in elastographic resolution as compared with its parent imaging resolution, the detection sensitivity and accuracy, and the cost of the overall system. Here we report for the first time, we believe, on an elastography technique—crawling wave optical coherence elastography (CRW-OCE)—which significantly lowers the requirements on the imaging speed and opens the path to high-resolution and high-sensitivity OCE at relatively low cost. Methods of crawling wave excitation, data acquisition, and crawling wave tracking are presented.

© 2016 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Longitudinal elastic wave imaging using nanobomb optical coherence elastography

Chih-Hao Liu, Dmitry Nevozhay, Hongqiu Zhang, Susobhan Das, Alexander Schill, Manmohan Singh, Salavat Aglyamov, Konstantin V. Sokolov, and Kirill V. Larin
Opt. Lett. 44(12) 3162-3165 (2019)

Longitudinal shear waves for elastic characterization of tissues in optical coherence elastography

Fernando Zvietcovich, Gary R. Ge, Humberto Mestre, Michael Giannetto, Maiken Nedergaard, Jannick P. Rolland, and Kevin J. Parker
Biomed. Opt. Express 10(7) 3699-3718 (2019)

Quantitative elastography provided by surface acoustic waves measured by phase-sensitive optical coherence tomography

Chunhui Li, Guangying Guan, Xi Cheng, Zhihong Huang, and Ruikang K. Wang
Opt. Lett. 37(4) 722-724 (2012)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Supplementary Material (2)

NameDescription
» Visualization 1: AVI (6929 KB)      A movie shows series of Doppler images captured by our phased resolved Doppler OCT, which clearly shows the different speed of the crawling wave in the two regions.
» Visualization 2: AVI (3369 KB)      A movie shows propagation of the crawling wave envelop across 10 mm lateral distance at around the boundary between the two concentrations of the gelatin phantom.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (2)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription