456
5 Laser Specklometer, Speckle-Optical Diagnostics and Laser …
by the absence of difference in the medium frequency of fluctuation intensity of
speckle-field scattered by skin over the examined muscles at their maximal arbitrary contractions and in the condition of functional rest. In patients with traumatic
damages of peripheral nerves using the speckle-optical method of diagnostics, the
character of disorders of skin microdynamics was found with the shift of the medium
frequency of fluctuation intensity of speckle-field in the area of low frequency and
reduction of spectrum power more distal than the place of damage.
On the grounds of the analysis of clinical, ENMG and speckle-optical data of the
study results, it was found out that using the ILBI method by irradiation of He–Ne
laser (λ = 632.8 nm, power of 4–8 mW) after neurography of damaged nerves
in patients, it accelerates the appearance of initial clinical, ENMG and speckleoptical signs of regeneration of peripheral nerves and provides quicker and sterling
functional recovery of damaged nerves, improving the results of surgical treatment
of this pathology [215, 218–220, 224, 225].
Thereby, the studies, which we have conducted in the Institute of Neurology,
Neurosurgery and Physiotherapy of the Ministry of Health of the Republic of Belarus
(today: the State Establishment “The Republican Theoretical and Practical Center of
Neurology and Neurosurgery”) together with other workers of this institution in the
period from 1996 till 2008, of the influence of ILBI on patients with the diseases of
peripheral and central nervous system with the help of the developed fundamentally
new noninvasive, non-contacting, highly sensitive speckle-optical method and laser
specklometer—the device of a new generation in medicine [80–82, 115–134, 165,
166, 179–264]—convincingly showed the perspective of their usage in treatment and
diagnostics of these diseases.
Besides in works [56–58, 265–269], the studies of changes of concentration of
oxyhemoglobin of surface blood flow at various functional skin conditions were
conducted, and a new spectrometric method for the determination of the level of
ischemia of the organs and tissues of a human being was proposed. The dependence
was established of local extremums of the spectral curve of the coefficients of reflections of skin on the level of concentration of oxyhemoglobin of the surface cover
and the level of ischemia.
5.13 Analysis of Spectral Characteristics of Radiation
Scattered by Human Skin and Development
of Non-contact Noninvasive Optical Method of Blood
Flow Study
At the transmission of the radiation of optical range through skin, it considerably
scatters and is absorbed by structural skin layers and chromophores contained in
them [270, 271]. Skin is an extremely dynamic organ, and its optical properties must
be studied in vivo. For the normally incident beam in a spectral range of 250–3000nm mirror component, scattered light by human skin for the light as well as dark
5 Laser Specklometer, Speckle-Optical Diagnostics and Laser …
by the absence of difference in the medium frequency of fluctuation intensity of
speckle-field scattered by skin over the examined muscles at their maximal arbitrary contractions and in the condition of functional rest. In patients with traumatic
damages of peripheral nerves using the speckle-optical method of diagnostics, the
character of disorders of skin microdynamics was found with the shift of the medium
frequency of fluctuation intensity of speckle-field in the area of low frequency and
reduction of spectrum power more distal than the place of damage.
On the grounds of the analysis of clinical, ENMG and speckle-optical data of the
study results, it was found out that using the ILBI method by irradiation of He–Ne
laser (λ = 632.8 nm, power of 4–8 mW) after neurography of damaged nerves
in patients, it accelerates the appearance of initial clinical, ENMG and speckleoptical signs of regeneration of peripheral nerves and provides quicker and sterling
functional recovery of damaged nerves, improving the results of surgical treatment
of this pathology [215, 218–220, 224, 225].
Thereby, the studies, which we have conducted in the Institute of Neurology,
Neurosurgery and Physiotherapy of the Ministry of Health of the Republic of Belarus
(today: the State Establishment “The Republican Theoretical and Practical Center of
Neurology and Neurosurgery”) together with other workers of this institution in the
period from 1996 till 2008, of the influence of ILBI on patients with the diseases of
peripheral and central nervous system with the help of the developed fundamentally
new noninvasive, non-contacting, highly sensitive speckle-optical method and laser
specklometer—the device of a new generation in medicine [80–82, 115–134, 165,
166, 179–264]—convincingly showed the perspective of their usage in treatment and
diagnostics of these diseases.
Besides in works [56–58, 265–269], the studies of changes of concentration of
oxyhemoglobin of surface blood flow at various functional skin conditions were
conducted, and a new spectrometric method for the determination of the level of
ischemia of the organs and tissues of a human being was proposed. The dependence
was established of local extremums of the spectral curve of the coefficients of reflections of skin on the level of concentration of oxyhemoglobin of the surface cover
and the level of ischemia.
5.13 Analysis of Spectral Characteristics of Radiation
Scattered by Human Skin and Development
of Non-contact Noninvasive Optical Method of Blood
Flow Study
At the transmission of the radiation of optical range through skin, it considerably
scatters and is absorbed by structural skin layers and chromophores contained in
them [270, 271]. Skin is an extremely dynamic organ, and its optical properties must
be studied in vivo. For the normally incident beam in a spectral range of 250–3000nm mirror component, scattered light by human skin for the light as well as dark