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Optimising reflection-based pulse oximeters

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Abstract

Reflectance pulse oximetry (PO) use is retarded by fears concerning its accuracy, which is affected by differences in scattering at each wavelength. A photon diffusion model together with data from desaturation of 20 volunteers is analysed to provide clues for improvement. These data indicate that accuracy is very sensitive to source wavelengths and probe geometry.

© 2004 Optical Society of America

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