478
5 Laser Specklometer, Speckle-Optical Diagnostics and Laser …
diagram of shifts in 10–15 ms, the range of which amounted to from 40 to 250
μm, was made.
Besides, the possibility of study using the method of speckle-optics of elastomechanical properties of an isolated nerve stem, which preserves its viability at
stretching, was shown. The contactlessness of such a method in combination with
the possibility of determining the whole deformation field can make it a unique
instrument in the study of elastic properties of a nerve and the homogeneity of their
deformations depending on the force of stretching.
3. The method of speckle-optics was suggested and experimentally studied, which
allows defining not only the size, but also the vector of velocity of a diffuse object
due to additional modulation of shift of speckle-fields.
Both isometric and isotonic contraction and stretching of skeletal muscle of vertebrata were theoretically studied. It was shown that amplitude of muscle oscillations
can reach several microns. For the case of small incidence angles of optical radiation
at oscillating skin surface, spatial distribution of the intensity of scattered radiation
was calculated. It was shown that the amplitude of muscle oscillation does not exceed
z situated on the line section of the intensity distribution.
4. The complex of scientific research and instrument-making works providing
the implementation of principally new contactless coherence-optical methods
of diagnostics, treatment and prevention of atherosclerosis and other diseases,
which are connected with the disorders of vascular and metabolic processes,
was conducted. During these studies, physical principles of a new class of
medical–biological devices based on holography and speckle-optics for remote
noninvasive diagnostics of diseases and preventive examination with high precision, sensitivity and big spatial resolution were developed, and that allowed
increasing the objectivity, information value and credibility of derived results.
A laser-holographic complex, namely holographic cardiograph (Chap. 3), laser
speckle-optical microhematomyograph for contactless defining of muscle tone
and surface blood flow with defining the components of this integration process,
was created on the basis of these developments. The field of application of the data
from coherent-optical devices can spread not only on the measurement of muscle
tone and skin blood flow, but also on the studies of other tissues and organs. It is
supposed that these developments may be used in the sphere of cardiosurgery in
clinical practice, along with electrocardiography, angiocardiography and other
methods.
5. An experimental model of laser specklometer consisting of a measuring block,
a signal processing module, a module of low and high voltage, was developed, produced and tested. With its help, medical–biological experiments were
conducted, which allowed developing informative parameters for the analysis
of information, derived during the studies of biomechanical characteristics of
skeletal muscle and microhemodynamics of skin.
The laser specklometer is equipped with software and is used together with
computer. Software of experimental model of laser specklometer is assigned for the
5 Laser Specklometer, Speckle-Optical Diagnostics and Laser …
diagram of shifts in 10–15 ms, the range of which amounted to from 40 to 250
μm, was made.
Besides, the possibility of study using the method of speckle-optics of elastomechanical properties of an isolated nerve stem, which preserves its viability at
stretching, was shown. The contactlessness of such a method in combination with
the possibility of determining the whole deformation field can make it a unique
instrument in the study of elastic properties of a nerve and the homogeneity of their
deformations depending on the force of stretching.
3. The method of speckle-optics was suggested and experimentally studied, which
allows defining not only the size, but also the vector of velocity of a diffuse object
due to additional modulation of shift of speckle-fields.
Both isometric and isotonic contraction and stretching of skeletal muscle of vertebrata were theoretically studied. It was shown that amplitude of muscle oscillations
can reach several microns. For the case of small incidence angles of optical radiation
at oscillating skin surface, spatial distribution of the intensity of scattered radiation
was calculated. It was shown that the amplitude of muscle oscillation does not exceed
z situated on the line section of the intensity distribution.
4. The complex of scientific research and instrument-making works providing
the implementation of principally new contactless coherence-optical methods
of diagnostics, treatment and prevention of atherosclerosis and other diseases,
which are connected with the disorders of vascular and metabolic processes,
was conducted. During these studies, physical principles of a new class of
medical–biological devices based on holography and speckle-optics for remote
noninvasive diagnostics of diseases and preventive examination with high precision, sensitivity and big spatial resolution were developed, and that allowed
increasing the objectivity, information value and credibility of derived results.
A laser-holographic complex, namely holographic cardiograph (Chap. 3), laser
speckle-optical microhematomyograph for contactless defining of muscle tone
and surface blood flow with defining the components of this integration process,
was created on the basis of these developments. The field of application of the data
from coherent-optical devices can spread not only on the measurement of muscle
tone and skin blood flow, but also on the studies of other tissues and organs. It is
supposed that these developments may be used in the sphere of cardiosurgery in
clinical practice, along with electrocardiography, angiocardiography and other
methods.
5. An experimental model of laser specklometer consisting of a measuring block,
a signal processing module, a module of low and high voltage, was developed, produced and tested. With its help, medical–biological experiments were
conducted, which allowed developing informative parameters for the analysis
of information, derived during the studies of biomechanical characteristics of
skeletal muscle and microhemodynamics of skin.
The laser specklometer is equipped with software and is used together with
computer. Software of experimental model of laser specklometer is assigned for the