Diffuse reflectance imaging to predict heterogeneities in turbid optical phantom

Thereza C. Fortunato; Cristina Kurachi; Vanderlei S. Bagnato; Lilian T. Moriyama

doi:10.1117/12.2180985

19 June 2015 Diffuse reflectance imaging to predict heterogeneities in turbid optical phantom

Thereza C. Fortunato, Cristina Kurachi, Vanderlei S. Bagnato, Lilian T. Moriyama

Proceedings Volume 9531, Biophotonics South America; 953148 (2015) https://doi.org/10.1117/12.2180985
Event: SPIE Biophotonics South America, 2015, Rio de Janeiro, Brazil

Abstract

The use of light as a therapeutic agent has been the subject of several studies; however, the dosimetry for its clinical application is still based on empirical data. The propagation of light in biological tissues depends on the tissue optical properties, and these properties may vary among people, tissues and sites, making it diffcult to establish dosimetry. In this context, the research for methods to determine the spatial distribution of light in individual biological tissues becomes essential, allowing the individual dosimetry. This study aims to image the diffuse reflectance at the optical phantom surface to infer the spatial distribution of light inside a phantom when an absorbing obstacle is present. Red laser were used as light source on solid turbid optical phantom; a small black sphere was used as absorbing obstacle. It is important to know, in real time and in a non-invasive way, about the existence of heterogeneities that may compromise the light propagation inside a biological tissue, so that the light dosimetry might be properly established.

Citation Download Citation

Thereza C. Fortunato, Cristina Kurachi, Vanderlei S. Bagnato, and Lilian T. Moriyama "Diffuse reflectance imaging to predict heterogeneities in turbid optical phantom", Proc. SPIE 9531, Biophotonics South America, 953148 (19 June 2015); https://doi.org/10.1117/12.2180985

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