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Title: Non-invasive optical assessment of tissue hydration
Authors: Kumar, Gitesh
Schmitt, Joseph M.
Keywords: Non-invasive optical assessment
Tissue hydration
Diffuse reflectance near-infrared spectrophotometry
Issue Date: 1996
Citation: Proceedings of International Conference on Biomedical Engineering (BME '96), Hong Kong, 3-5 June 1996, Biomedical Division, The Hong Kong Institution of Engineers, Hong Kong, 1996, p. 139-142
Abstract: We examined techniques for non-invasive measurement of water content of skin by using diffuse reflectance near-infrared (800nm-1600nm) spectrophotometry. An in-vitro phantom with optical properties that mimic those of a wide range of soft tissues, but with a composition that can be altered in a controlled manner, was developed to test several different algorithms. The standard error of estimation of absolute water content from a four-wavelength linear regression, was found to be <±2%. The experimental results suggest that our approach can be used for assessment of acute dehydration.
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