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Biomedical Optics Express

Biomedical Optics Express

  • Editor: Joseph A. Izatt
  • Vol. 2, Iss. 3 — Mar. 1, 2011
  • pp: 491–504

Depth-resolved blood oxygen saturation measurement by dual-wavelength photothermal (DWP) optical coherence tomography

Roman V. Kuranov, Jinze Qiu, Austin B. McElroy, Arnold Estrada, Anthony Salvaggio, Jeffrey Kiel, Andrew K. Dunn, Timothy Q. Duong, and Thomas E. Milner  »View Author Affiliations

Biomedical Optics Express, Vol. 2, Issue 3, pp. 491-504 (2011)

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Non-invasive depth-resolved measurement of hemoglobin oxygen saturation (SaO2) levels in discrete blood vessels may have implications for diagnosis and treatment of various pathologies. We introduce a novel Dual-Wavelength Photothermal (DWP) Optical Coherence Tomography (OCT) for non-invasive depth-resolved measurement of SaO2 levels in a blood vessel phantom. DWP OCT SaO2 is linearly correlated with blood-gas SaO2 measurements. We demonstrate 6.3% precision in SaO2 levels measured a phantom blood vessel using DWP-OCT with 800 and 765 nm excitation wavelengths. Sources of uncertainty in SaO2 levels measured with DWP-OCT are identified and characterized.

© 2011 OSA

OCIS Codes
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(170.1470) Medical optics and biotechnology : Blood or tissue constituent monitoring
(170.4500) Medical optics and biotechnology : Optical coherence tomography
(170.6510) Medical optics and biotechnology : Spectroscopy, tissue diagnostics
(300.1030) Spectroscopy : Absorption

ToC Category:
Noninvasive Optical Diagnostics

Original Manuscript: December 9, 2010
Revised Manuscript: January 24, 2011
Manuscript Accepted: January 29, 2011
Published: February 3, 2011

Roman V. Kuranov, Jinze Qiu, Austin B. McElroy, Arnold Estrada, Anthony Salvaggio, Jeffrey Kiel, Andrew K. Dunn, Timothy Q. Duong, and Thomas E. Milner, "Depth-resolved blood oxygen saturation measurement by dual-wavelength photothermal (DWP) optical coherence tomography," Biomed. Opt. Express 2, 491-504 (2011)

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