Multi-wavelength photoacoustic imaging for assessing thermal damage in radiofrequency ablation of the liver

Hindrik Kruit; Jelle Plomp; Johan van Hespen; Srirang Manohar

doi:10.1117/12.2608658

7 March 2022 Multi-wavelength photoacoustic imaging for assessing thermal damage in radiofrequency ablation of the liver

Hindrik Kruit, Jelle Plomp, Johan van Hespen, Srirang Manohar

Author Affiliations +

Proceedings Volume PC11960, Photons Plus Ultrasound: Imaging and Sensing 2022; PC1196022 (2022) https://doi.org/10.1117/12.2608658
Event: SPIE BiOS, 2022, San Francisco, California, United States

Abstract

Percutaneous radiofrequency ablation (RFA) is used to destroy small liver tumors by locally inducing heat. However, there is a high tumor recurrence rate due to insufficient real-time image guidance during the procedure. We studied multi-wavelength photoacoustic imaging for identifying ablated tissue by taking the ratio of the photoacoustic signals at two wavelengths. To realize this, we first simulated the optical penetration in the liver and its influence on the optimal wavelength pair. Finally, the photoacoustic signals of treated and untreated bovine liver tissue were measured between 680 nm to 1100 nm to find candidate wavelength pairs for successful ratio imaging.

Conference Presentation

Citation Download Citation

Hindrik Kruit, Jelle Plomp, Johan van Hespen, and Srirang Manohar "Multi-wavelength photoacoustic imaging for assessing thermal damage in radiofrequency ablation of the liver", Proc. SPIE PC11960, Photons Plus Ultrasound: Imaging and Sensing 2022, PC1196022 (7 March 2022); https://doi.org/10.1117/12.2608658

ACCESS THE FULL ARTICLE

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