Probability density function of the electric field in diffuse correlation spectroscopy of human bone in vivo
Diffuse correlation spectroscopy (DCS) is the technique of choice for non-invasive assessments of human bone blood flow. However, DCS classical algorithms are based on the fundamental assumption that the electric field of the light reaching the DCS photodetector is a zero-mean complex Gaussian varia...
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Veröffentlicht in: | Applied Optics 2016-02, Vol.55 (4), p.757-762 |
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description | Diffuse correlation spectroscopy (DCS) is the technique of choice for non-invasive assessments of human bone blood flow. However, DCS classical algorithms are based on the fundamental assumption that the electric field of the light reaching the DCS photodetector is a zero-mean complex Gaussian variable. The non-validity of this hypothesis might produce inaccurate blood flow estimations. It is shown that for the human tibia, the "Gaussian hypothesis" holds for interoptode distances ≥20 mm. This lower boundary seems to depend on the type of investigated tissue. |
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subjects | Blood flow Bone and Bones - physiology Bones Correlation Diffusion Electric fields Electricity Forearm - physiology Gaussian Human Humans Male Probability Spectroscopy Spectrum Analysis - methods Tibia - physiology |
title | Probability density function of the electric field in diffuse correlation spectroscopy of human bone in vivo |
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