Dr. Achuth Nair Profile

Dr. Achuth Nair

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 12 March 2024 Poster + Paper

Comparison of optical coherence elastography techniques, Brillouin spectroscopy, and ultrasound elastography on samples with varying stiffness

Andres Bryan, Sajedeh Saeidi Fard, Christian Zevallos Delgado, Chaitanya Duvvuri, Achuth Nair, Manmohan Singh, Michael Twa, Salavat Aglyamov, Kirill Larin

Proceedings Volume 12844, 128440B (2024) https://doi.org/10.1117/12.2692942

KEYWORDS: Elastography, Spectroscopy, Optical coherence tomography, Elasticity, Tissues, Optical coherence

Read Abstract +

Optical elastography techniques are rapidly emerging as preferred methods of measuring tissue mechanical properties due to a variety of benefits, such as resolution, speed, and noninvasive imaging. However, there remains a lack of research on the inter-operability of these methods, which makes inter-study and inter-method mechanical comparisons difficult. Therefore, this work aims to compare measurements obtained by various optical coherence elastography (OCE) techniques, Brillouin spectroscopy, and ultrasound-based shear wave elastography (USE) to the gold standard of uniaxial mechanical testing. This study utilized three sets of tissue-mimicking silicone phantoms with varying elasticities. We compared measurements of common optical elastography methods, including air-pulse OCE, aircoupled ultrasound OCE, reverberant OCE, and compression OCE, along with ultrasound elastography and Brillouin spectroscopy. The measurements from these methods were compared to the gold standard of uniaxial mechanical testing. The results of the quasistatic methods, i.e., mechanical testing and compression OCE, showed very good agreement for all three samples. The dynamic wave-based OCE and USE methods also had good inter-agreement, showing the inter-operability of air-pulse, air-coupled, and reverberant OCE and USE. Additionally, Brillouin spectroscopy measurements yielded the Brillouin frequency shift, which was able to discriminate all three sample sets. These results are the first step of a more robust framework for studying the relationship between mechanical measurements performed by various excitation methods.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years