Title of the article

BIOMECHANICS OF LASER SPECKLE FIELDS PRODUCED BY PROBING SCATTERING TISSUES IN VIVO

Authors

Maleeva O.V., Institute of Heat and Mass Transfer n.a. A.V. Lykov of the National Academy of Sciences of Belarus, Minsk, Republic of Belarus

Fomin N.A., Institute of Heat and Mass Transfer n.a. A.V. Lykov of the National Academy of Sciences of Belarus, Minsk, Republic of Belarus

In the section BIOMECHANICS
Year 2010 Issue 4 Pages

79-84

 

Type of article RAR Index UDK 532.574.7+53.082.5+612.13 Index BBK  
Abstract

The formation and dynamics of the speckle field pattern by probing 3D nonstationary media with laser beam have been described. The examples of use of the laws of the speckle fields dynamics for bio-tissues monitoring in vivo have been given. The strict mathematical description of the bio speckle fields forming and their dynamic statistics under scattering of the laser radiation by moving have been shown. The formation and dynamics of the speckle field pattern by probing 3D nonstationary media with laser beam have been described. Examples of the use of the laws of the speckle field dynamics, that were applied for physiological monitoring in vivo, have been given. The strict mathematical description of the bio-speckle fields formation and dynamics under scattering of the later radiation on the moving erythrocytes of the biotissue has been adduced. Such description, in a number of cases, requires simple but cumbrous equations. At the same time the knowledge of the analytical dependences of the dynamic speckle fields characteristics for different optic configurations is necessary for the correct processing of specklegrams and building of the blood flow maps of biotissues under study.

Keywords

speckle-field, dynamics, biological tissue, laser sensing, digital image registration

   
Bibliography
  • Dainty J.C. ed. Laser Speckle and Related Phenomena (second edition). Berlin, Springer Verlag, 1984.
  • Fomin N. Speckle Photography for Fluid Mechanics Measurements. Berlin, Springer Verlag, 1998. 248 p.
  • Raffel M., Willert C.E., Kompenhans J. Particle Image Velocimetry. A Practical Guide. Berlin, 1998. 253 p.
  • Burch J.M., Tokarski J.M.J. Production multiple beam fringes from photographic scatterers. Optica Acta, 1968, vol. 15, no. 2, pp. 101-111.
  • Asseban A. [et al.]. Digital speckle photography and speckle tomography in heat transfer studies. Optics & Laser Technology, 2000, vol. 32, pp. 583-592.
  • Rubnikovich S.P., Fomin N.A. Lazerno-opticheskie metody diagnostiki i terapii v stomatologii [Laser-optical methods of diagnosis and therapy in dentistry]. Minsk, ITMO NAN Belarusi, 2010. 361 p.
  • Briers J.D. Wavelength dependence of intensity fluctuations in laser speckle pattern from biological specimens. Opt. Communications, 1975, vol. 13, pp. 324-326.
  • Stern M.D. In vivo evaluation of microcirculation by coherent light scattering. Nature, 1975, vol. 254, pp. 56-58.
  • Takai N., Asakura T. Statistical properties of laser speckles produced under illumination from a multimode optical fiber. J. Opt. Soc. Am. A 2., 1985, pp. 1282-1290.
  • Iwai T., Asakura T. Dynamic properties of speckled speckles with relation to velocity measurements of a diffuse object. Opt. LaserTechnol. 21, 1989, pp. 31-35.
  • Fomin N.A., Rubnikovich S.P., Bazylev N.B. Novye vozmozhnosti issledovanija krovotoka mjagkih tkanej rotovoj polosti. IFZh, 2008, vol. 81, no. 3, pp. 508-517.