Acousto-Photonic Imaging

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.

  • Ronald Roy, Department of Aerospace and Mechanical Engineering, Boston University.
  • Todd Murray, Department of Aerospace and Mechanical Engineering, Boston University.

Optical Science Laboratory

This research project is part of the work at the Optical Science Laboratory of Chuck DiMarzio in the Department of Electrical and Computer Engineering at Northeastern University. For other projects see Optical Science Lab Research Page.

Last update 4 Dec 2009