Monte Carlo modeling of photoacoustic guided technique in scattering media

Joya Arisu; Naoto Yamamura; Keiichi Nakagawa; Shu Takagi; Eiji Okada

doi:10.1117/12.2670646

9 August 2023 Monte Carlo modeling of photoacoustic guided technique in scattering media

Joya Arisu, Naoto Yamamura, Keiichi Nakagawa, Shu Takagi, Eiji Okada

Proceedings Volume 12628, Diffuse Optical Spectroscopy and Imaging IX; 126281Z (2023) https://doi.org/10.1117/12.2670646
Event: European Conferences on Biomedical Optics, 2023, Munich, Germany

Abstract

The photoacoustic guided (PAG) technique can noninvasively increase light penetration and localization in deep tissue. The mechanism of the PAG technique is considered to be a pressure dependent refractive index change caused by acoustic wave that produces a virtual waveguide, but it is still a highly controversial issue. In this study, light propagation in the models with the PAG region was calculated by a Monte Carlo simulation. We assumed that the change in the refractive index or anisotropy factor of scattering in the PAG region contributes to the light guiding effect. Both the refractive index and anisotropy factor heterogeneities increase the photon density in the PAG region of the deep tissue part. The effect of localization of the photon density in the PAG region with the anisotropy factor heterogeneity is less significant compared to that with the refractive index heterogeneity.

Citation Download Citation

Joya Arisu, Naoto Yamamura, Keiichi Nakagawa, Shu Takagi, and Eiji Okada "Monte Carlo modeling of photoacoustic guided technique in scattering media", Proc. SPIE 12628, Diffuse Optical Spectroscopy and Imaging IX, 126281Z (9 August 2023); https://doi.org/10.1117/12.2670646

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