1 January 2002 Quantification of optical properties of a breast tumor using random walk theory
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J. of Biomedical Optics, 7(1), (2002). doi:10.1117/1.1427049
Abstract
For the first time we use a random walk methodology based on time-dependent contrast functions to quantify the optical properties of breast tumors (invasive ductal carcinoma) of two patients. Previously this theoretical approach was successfully applied for analysis of embedded objects in several phantoms. Data analysis was performed on distributions of times of flight for photons transmitted through the breast which were recorded in vivo using a time-domain scanning mammograph at 670 and 785 nm. The size of the tumors, their optical properties, and those of the surrounding tissue were reconstructed at both wavelengths. The tumors showed increased absorption and scattering. From the absorption coefficients at both wavelengths blood oxygen saturation was estimated for the tumors and the surrounding tissue.
Victor V. Chernomordik, David W. Hattery, Dirk Grosenick, Heidrun Wabnitz, Herbert H. Rinneberg, K. Thomas Moesta, Peter M. Schlag, Amir H. Gandjbakhche, "Quantification of optical properties of a breast tumor using random walk theory," Journal of Biomedical Optics 7(1), (1 January 2002). http://dx.doi.org/10.1117/1.1427049
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KEYWORDS
Tumors

Tissue optics

Breast

Absorption

Scattering

Optical properties

Photons

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