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Radiative transport in large arteries

Radiative transport in large arteries

Biomedical Optics Express 5(1): 54-68

A refined model for the photon energy distribution in a living artery is established by solving the radiative transfer equation in a cylindrical geometry, using the Monte Carlo method. Combining this model with the most recent experimental values for the optical properties of flowing blood and the biomechanics of a blood-filled artery subject to a pulsatile pressure, we find that the optical intensity transmitted through large arteries decreases linearly with increasing arterial distension. This finding provides a solid theoretical foundation for measuring photoplethysmograms.

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Accession: 055345582

Download citation: RISBibTeXText

PMID: 24466476

DOI: 10.1364/BOE.5.000054

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