A tissue-like optically turbid and electrically conducting phantom for simultaneous EEG and near-infrared imaging.

A tissue equivalent phantom for simultaneous near-infrared optical tomography and EEG

We describe a phantom which enables EEG and near-infrared optical tomography to be performed simultaneously over the same volume. The phantom provides a surface electrical contact impedance comparable to that of the human scalp, whilst also possessing an optical scattering coefficient and electrical conductivity equivalent to that of brain tissue. The construction of the phantom is described, a...

Evaluation of Reflection Optical Imaging Characteristics Using Fluorescence with Near Infrared Wavelength at Different Depths of Tissue Equivalent Phantom

Design and evaluation of a probe for simultaneous EEG and NIR imaging of cortical activation

We present a novel probe design which enables simultaneous electroencephalography (EEG) and near-infrared (NIR) optical imaging to be performed in a manner which is easy to apply, allows for optimum coregistration of the two forms of data and maximizes the number of sensors which can be applied to a given area. Our probe design is evaluated using a dualmodality, tissue-mimicking phantom and by ...

Quantitative Comparison of Analytical solution and Finite Element Method for investigation of Near-Infrared Light Propagation in Brain Tissue Model

Introduction: Functional Near-Infrared Spectroscopy (fNIRS) is an imaging method in which light source and detector are installed on the head; consequently, re-emission of light from human skin contains information about cerebral hemodynamic alteration. The spatial probability distribution profile of photons penetrating tissue at a source spot, scattering into the tissue, and being released at ...

IMAGING OF NEAR-INFRARED FLUORESCENCE, ABSORPTION, AND SCATTER IN TURBID MEDIA A Thesis

Milstein, Adam B. Ph.D., Purdue University, August, 2004. Imaging of near-infraredfluorescence, absorption, and scatter in turbid media. Major Professor: Charles A.Bouman and Kevin J. Webb.A nonlinear, Bayesian optimization scheme is presented for reconstructing fluo-rescent yield and lifetime, the absorption coefficient, and the diffusion coefficient inturbid media, suc...