Journal ArticleDOI
A review of the optical properties of biological tissues
TLDR
The known optical properties (absorption, scattering, total attenuation, effective attenuation and/or anisotropy coefficients) of various biological tissues at a variety of wavelengths are reviewed in this article.Abstract:
The known optical properties (absorption, scattering, total attenuation, effective attenuation, and/or anisotropy coefficients) of various biological tissues at a variety of wavelengths are reviewed. The theoretical foundations for most experimental approaches are outlined. Relations between Kubelka-Munk parameters and transport coefficients are listed. The optical properties of aorta, liver, and muscle at 633 nm are discussed in detail. An extensive bibliography is provided. >read more
Citations
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Journal ArticleDOI
Modeling of photosensitizer fluorescence emission and photobleaching for photodynamic therapy dosimetry.
TL;DR: By analyzing spatially resolved fluorescence measured at the tissue surface in terms of an equivalent virtual point or planar source of fluorescence within the tissue, predictions of necrosis depth that are insensitive to a range of initial treatment parameters were shown to be possible.
Journal ArticleDOI
Diffuse optical tomography: Present status and its future
Yukio Yamada,Shinpei Okawa +1 more
TL;DR: In this paper, the authors reviewed the fundamentals and development of DOT technology since its advent in the early 1990s, including the modeling of light propagation in biological tissues which strongly scatter and weakly absorb NIR light, the optical properties of biological tissues in the NIR wavelength range, three typical measurement methods, image reconstruction algorithms, and so forth.
Journal ArticleDOI
Trans-rectal ultrasound-coupled near-infrared optical tomography of the prostate, part II: experimental demonstration.
Zhen Jiang,Daqing Piao,Guan Xu,Jerry W. Ritchey,G.R. Holyoak,Kenneth E. Bartels,Charles F. Bunting,Gennady Slobodov,Jerzy S. Krasinski +8 more
TL;DR: Tests on avian tissues validates that NIR imaging can recover the absorption contrast of a target, and its accuracy is improved when the TRUS spatial prior is incorporated, and the use of a condom is found to have minimal effect on trans-rectal Nir imaging.
Journal ArticleDOI
Empirical model of the photon path length for a single fiber reflectance spectroscopy device.
TL;DR: This study presents a novel empirical relationship between the single fiber path length and the combined effect of both the absorption coefficient, mua, and the reduced scattering coefficient, micro's, which is applicable to probes containing a wide range of fiber diameters.
Book ChapterDOI
Measurement of Tissue Optical Properties: Methods and Theories
TL;DR: In this article, various experimental techniques which have been developed to measure the optical scattering and absorption properties of tissues are discussed, together with the theory underlying these methods, and the fundamental optical properties of interest are the absorption coefficient, µ a, scattering coefficient, and µ s, total attenuation coefficient.
References
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Journal ArticleDOI
The Optics of Human Skin
R. Rox Anderson,John A. Parrish +1 more
TL;DR: An integrated review of the transfer of optical radiation into human skin is presented, aimed at developing useful models for photomedicine.
Journal ArticleDOI
New contributions to the optics of intensely light-scattering materials.
TL;DR: In this paper, the Gurevic and Judd formulas were derived from the Kubelka-Munk differential equations, and they are exact under the same conditions as in this paper, that is, when the material is perfectly dull and when the light, is perfectly diffused or if it is parallel and hits the specimen under an angle of 60° from normal.
Journal ArticleDOI
Time resolved reflectance and transmittance for the non-invasive measurement of tissue optical properties.
TL;DR: A simple model is developed, based on the diffusion approximation to radiative transfer theory, which yields analytic expressions for the pulse shape in terms of the interaction coefficients of a homogeneous slab.
Journal ArticleDOI
The delta-Eddington approximation for radiative flux transfer
TL;DR: In this paper, the delta-Eddington approximation was used to calculate monochromatic radiative fluxes in an absorbing-scattering atmosphere, by combining a Dirac delta function and a two-term approximation, which overcomes the poor accuracy of the Eddington approximation for highly asymmetric phase functions.