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
More filters
Journal ArticleDOI
X-Ray Luminescence Computed Tomography via Selective Excitation: A Feasibility Study
TL;DR: Computer simulations exploring the feasibility of imaging small objects with X-ray luminescence computed tomography, such as research animals, are presented.
Patent
Apparatus, method and system for intravascular photographic imaging
TL;DR: In this paper, an apparatus, system and method for providing a photographic image of a target region within an intravascular environment is described, each of which reduces the ambient 'noise' detected along with the light reflected from the target region in order to increase the signal/noise ratio, thereby to enhance the quality of the image produced.
Journal ArticleDOI
Light Sources and Dosimetry Techniques for Photodynamic Therapy
Michele M. Kim,Arash Darafsheh +1 more
TL;DR: The basic physics of light sources are summarized, methods for determining the dose delivered to the patient are described, and the selection of light source and delivery device appropriate to the target tissue are described.
Patent
Method and apparatus for imaging of vessel segments
TL;DR: In this paper, an apparatus, method and software arrangement for imaging a surface of a structure that is in contact with an opaque fluid is provided, which includes an article of manufacture (e.g., a housing), a fluid delivery arrangement and an imaging arrangement.
Journal ArticleDOI
Maps of optical differential pathlength factor of human adult forehead, somatosensory motor and occipital regions at multi-wavelengths in NIR.
Huijuan Zhao,Huijuan Zhao,Yukari Tanikawa,Feng Gao,Feng Gao,Yoichi Onodera,Angelo Sassaroli,Kenji Tanaka,Yukio Yamada,Yukio Yamada +9 more
TL;DR: The optical differential pathlength factor (DPF) is an important parameter for physiological measurement using near infrared spectroscopy, but for the human adult head it has been available only for the forehead as mentioned in this paper.
References
More filters
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.