Research Overview
Acousto-Photonic Imaging is a new frequency domain optical technique for
non-invasive medical imaging, which is based on the combination of Diffuse
Optical Tomography (DOT) and focused ultrasound. Diffuse Optical
Tomography, due to its diffuse nature, can not provide good spatial
resolution by itself. Therefore, the objective is to use ultrasound to
acoustically generate optical diffuse sources at different modulation
frequencies, to improve the spatial resolution as well as to acquire the
optical properties of human tissue.
Current research involves Monte Carlo simulations for the interaction of
Near-Infrared light (NIR) and ultrasound in dense turbid media with high
albedo and experiments based on speckle pattern and diffuse photon density
waves modulation. This experimental techniques are perfomed with the goal
of imaging in tissue-like phantoms made of titanium dioxide (TiO2)
suspended in polyacrylamide gel that is acoustically impedance matched
with water.
For more information, contact Charles Dimarzio, Alex Nieva.
Collaborators- Ronald Roy, Department of Aerospace and Mechanical Engineering, Boston University.
- Todd Murray, Department of Aerospace and Mechanical Engineering, Boston University.