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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
ABSTRACT:
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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