Visualisation of structural inhomogeneities in strongly scattering media using the method of spatially-resolved reflectometry: Monte Carlo simulation

Journal Article · Thu Jun 30 04:00:00 EDT 2011 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2011V041N06ABEH014642· OSTI ID:21552666

Bykov, A V; Priezzhev, A V; Myllylae, Risto A

Two-dimensional spatial intensity distributions of diffuse scattering of near-infrared laser radiation from a strongly scattering medium, whose optical properties are close to those of skin, are obtained using Monte Carlo simulation. The medium contains a cylindrical inhomogeneity with the optical properties, close to those of blood. It is shown that stronger absorption and scattering of light by blood compared to the surrounding medium leads to the fact that the intensity of radiation diffusely reflected from the surface of the medium under study and registered at its surface has a local minimum directly above the cylindrical inhomogeneity. This specific feature makes the method of spatially-resolved reflectometry potentially applicable for imaging blood vessels and determining their sizes. It is also shown that blurring of the vessel image increases almost linearly with increasing vessel embedment depth. This relation may be used to determine the depth of embedment provided that the optical properties of the scattering media are known. The optimal position of the sources and detectors of radiation, providing the best imaging of the vessel under study, is determined. (biophotonics)

• OSTI ID: 21552666
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 6 Vol. 41; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

60 APPLIED LIFE SCIENCES
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BIOLOGICAL MATERIALS
BLOOD
BLOOD VESSELS
BODY
BODY FLUIDS
CALCULATION METHODS
CARDIOVASCULAR SYSTEM
COHERENT SCATTERING
COMPUTERIZED SIMULATION
CONFIGURATION
CYLINDRICAL CONFIGURATION
DIFFRACTION
DIFFUSE SCATTERING
DISTRIBUTION
ELECTROMAGNETIC RADIATION
INFRARED RADIATION
LASER RADIATION
MATERIALS
MONTE CARLO METHOD
NEAR INFRARED RADIATION
OPTICAL PROPERTIES
ORGANS
PHYSICAL PROPERTIES
RADIATIONS
SCATTERING
SIMULATION
SKIN
SPATIAL DISTRIBUTION
SURFACES
TWO-DIMENSIONAL CALCULATIONS
VISIBLE RADIATION