Two-color interpolation of absorption response for quantitative Acousto-Optic imaging

TL;DR

This paper introduces a method using two-color interpolation in Acousto-Optic imaging to quantitatively measure absorber concentrations in scattering media, enhancing the capabilities of diffuse optical tomography.

Contribution

It presents a novel two-wavelength AO imaging technique that enables quantitative absorption measurements without complex inversion algorithms.

Findings

Enables quantitative absorption measurement in scattering media

Uses two-color interpolation for improved accuracy

Provides a non-invasive alternative to traditional DOT

Abstract

Diffuse Optical Tomography (DOT) is a reliable and widespread technique for monitoring qualitative changes in absorption inside highly scattering media. It has been shown, however, that Acousto-Optic (AO) imaging can provide significantly more qualitative information, without the need for inversion algorithms, due to the spatial resolution afforded by ultrasound probing. In this article, we show how, by using multiple-wavelength AO imaging, it is also possible to perform quantitative measurements of absorber concentration inside scattering media.