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Commercial Diffuse Reflectance Spectroscopy

The moorVMS-OXY. Drawing.

Diffuse reflectance spectroscopy (DRS) utilizes white light with a known spectrum, which is guided to the surface of the skin via an optical fiber. As light penetrates into the tissue, photons either scatter or become absorbed where only a fraction of the injected photons manage to escape back from the skin surface. This light is captured by a second fiber and measured with a spectrometer. Depending on the chromophores in the tissue causing the absorption, the measured spectrum will change, from which one can draw some conclusions on the abundance of absorbing species in the tissue, such as oxygenated and deoxygenated haemoglobin. The moorVMS-OXY superficial tissue oxygenation monitor uses diffuse reflectance spectroscopy to assess superficial tissue oxygen saturation (SO2), tissue haemoglobin concentration and temperature.

The instrument is located part of the time at the Department of Physics and part of the time at the Department of Ophthalmology in Lund and is managed by Associate professor Nina Reistad.