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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 16 — Jun. 1, 1998
  • pp: 3586–3593

Mechanisms of light scattering from biological cells relevant to noninvasive optical-tissue diagnostics

Judith R. Mourant, James P. Freyer, Andreas H. Hielscher, Angelia A. Eick, Dan Shen, and Tamara M. Johnson  »View Author Affiliations


Applied Optics, Vol. 37, Issue 16, pp. 3586-3593 (1998)
http://dx.doi.org/10.1364/AO.37.003586


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Abstract

We have studied the optical properties of mammalian cell suspensions to provide a mechanistic basis for interpreting the optical properties of tissues in vivo. Measurements of the wavelength dependence of the reduced scattering coefficient and measurements of the phase function demonstrated that there is a distribution of scatterer sizes. The volumes of the scatterers are equivalent to those of spheres with diameters in the range between ∼0.4 and 2.0 μm. Measurements of isolated organelles indicate that mitochondria and other similarly sized organelles are responsible for scattering at large angles, whereas nuclei are responsible for small-angle scattering. Therefore optical diagnostics are expected to be sensitive to organelle morphology but not directly to the size and shape of the cells.

© 1998 Optical Society of America

OCIS Codes
(170.1530) Medical optics and biotechnology : Cell analysis
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(170.4580) Medical optics and biotechnology : Optical diagnostics for medicine
(170.4730) Medical optics and biotechnology : Optical pathology
(170.5280) Medical optics and biotechnology : Photon migration
(170.6510) Medical optics and biotechnology : Spectroscopy, tissue diagnostics

History
Original Manuscript: December 19, 1997
Revised Manuscript: February 11, 1998
Published: June 1, 1998

Citation
Judith R. Mourant, James P. Freyer, Andreas H. Hielscher, Angelia A. Eick, Dan Shen, and Tamara M. Johnson, "Mechanisms of light scattering from biological cells relevant to noninvasive optical-tissue diagnostics," Appl. Opt. 37, 3586-3593 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-16-3586

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