Abstract

NIR news
Volume 18 Issue 1, Pages 9–11 (2007)
doi: 10.1255/nirn.1003

Neodymium and water absorptions can reveal the wavelength dependence of optical pathlength for in vivo near infrared spectroscopy measurements

Stephen P. Nighswander-Rempel,a Valery V. Kupriyanovb and R. Anthony Shawb
aCentre for Biophotonics and Laser Science, University of Queensland, Brisbane, QLD, Australia 4072
bInstitute for Biodiagnostics, Winnipeg, MB, Canada R3B 1Y6

NIR spectroscopy is a powerful tool for measuring blood oxygenation and haemoglobin content non-invasively. However, quantification of these values in vivo is nearly impossible without an accurate measure of the optical pathlength. This article describes a novel method for measuring relative pathlength values in heart tissue.

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