227 research outputs found
A Method and a Device for Diagnostics of the Functional State of Peripheral Vessels of the Upper Limbs
The article suggests a method and a device for diagnostics of the functional state of peripheral vessels of the upper limbs, which provide identification of angiospastic disorders with a lower probability of falsenegative result, allowing thereby the quality of diagnostics to be improved. The suggested approach is based on combined application of laser Doppler flowmetry and contact thermometry during an occlusion test. The obtained results can be used in various fields of medicine for the development of multifunctional noninvasive diagnostic systems for the diagnosis and prevention of diseases associated with changes in the functional state of peripheral vessels
Integral pattern of bench stability on all adjacent rock of open-pit mine in solid rocks
The article presents the integrated image of bench stability across the entire adjacent pit area on the basis of a probabilistic method to predict the azimuthangular parameters of cracks that limit the potential prisms of the pit bench collapse that are put in the final position, as well as those planned to be set to the limiting contour in the form of a software component as the part of the specialized geoinformation GIS system "Stability
New trophic classification of wood-destroying fungi the case of community of pathogenic polypore fungi types on Pedunculate oak
Based on the generalization of experimental data obtained during the practical study of the trophic specialization of wood-destroying fungi from the commonness of PTH on oak in the oak forests of the south-west of the Central Russian Upland, a new ecotrophic classification has been developed, including the following groups of wood-destroying fungi: biotrophic pathogens, saprotrophic pathogens, pathogenic saprotrophs, non-pathogenic saprotroph
Assessment of the Size of Rocks in Benchs and Lumpiness of the Blasted Mountain Mass on Pits with Use of Gis Geomix
On the basis of natural researches in career of SC Kovdorsky MCP and computer processing of their results in GIS GEOMIX was developed the photometric method of assessment of blocks (sizes) of breeds in the slope of ledges of a pit, the existing version of this method intended for assessment of lumpiness of mountain mass is improve
Multimodal optical diagnostics of the microhaemodynamics in upper and lower limbs
The introduction of optical non-invasive diagnostic methods into clinical practice can substantially advance in the detection of early microcirculatory disorders in patients with different diseases. This paper is devoted to the development and application of the optical non-invasive diagnostic approach for the detection and evaluation of the severity of microcirculatory and metabolic disorders in rheumatic diseases and diabetes mellitus. The proposed methods include the joint use of laser Doppler flowmetry, absorption spectroscopy and fluorescence spectroscopy in combination with functional tests. This technique showed the high diagnostic importance for the detection of disturbances in peripheral microhaemodynamics. These methods have been successfully tested as additional diagnostic techniques in the field of rheumatology and endocrinology. The sensitivity and specificity of the proposed diagnostic procedures have been evaluated.<br/
Opportunities for the analysis of the spatial ecological structure of the mycobiota of macromycetes of a natural-territorial entity (the case of the Botanical Garden of Belgorod University, Belgorod, Russia)
On the basis of direct observations, the general principles of the organization of the mycobiota of the macromycetes of the natural-territorial formation "Botanical Garden" of Belgorod State University (Belgorod, Russian Federation) have been clarified. Based on the clarified principles, a scheme of their spatial ecological organization has been constructed: mycobiota - mycohore (mycocenosis, mycoaggregation) - mycosinium-3 - mycocenocells - mycocell. The obtained results can be used to study the spatial ecological organization of mycobiota macromycetes of other natural-territorial formation
Trans-species relation in communities of pathogenic Polyporaceae on pedunculate oak Quercus robur L
In the process of research phytopathological and mycocenological methods were used As a result of the research, real trans-species relation were revealed in the most common and frequently occurring types of PPF on oak within various communities: Mutually positive type relationships based on the proto-operation were found between Laetiporus sulphureus and Fistulina hepatica. Neutral type relationships were found in between Fistulina hepatica and Fomitiporia robusta, Laetiporus sulphureus and Fomitiporia robust
ΠΠ΅ΡΠΎΠ΄ ΠΈ ΡΡΡΡΠΎΠΉΡΡΠ²ΠΎ ΠΎΡΠ΅Π½ΠΊΠΈ ΡΡΠ½ΠΊΡΠΈΠΎΠ½Π°Π»ΡΠ½ΠΎΠ³ΠΎ ΡΠΎΡΡΠΎΡΠ½ΠΈΡ ΠΌΠΈΠΊΡΠΎΡΠΈΡΠΊΡΠ»ΡΡΠΎΡΠ½ΠΎ-ΡΠΊΠ°Π½Π΅Π²ΡΡ ΡΠΈΡΡΠ΅ΠΌ ΠΎΡΠ³Π°Π½ΠΈΠ·ΠΌΠ° ΡΠ΅Π»ΠΎΠ²Π΅ΠΊΠ° Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΌΡΠ»ΡΡΠΈΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΎΠΏΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΠΊΠΈ
Introduction. Violations of the microcirculatory-tissue systems of the human body play a key role in the pathogenesis of various diseases complications. However, there are a few unresolved methodological and instrumental problems with non-invasive monitoring of microcirculatory function and metabolic disorders associated with insufficient accuracy, reproducibility and informativeness of diagnostic results. The proposed approach of multiparametric optical diagnostics, when optical non-invasive technologies are used in combination, can be a promising tool that improves the sensitivity and accuracy of detecting microcirculatory and metabolic disorders at an early stage, which is important for the diagnosis and treatment of diseases of various profiles.Aim. Development of a method and device for assessing the functional state of microcirculatory-tissue systems of the human body based on multiparametric optical diagnostics and assessment of its diagnostic potential in clinical practice.Materials and methods. In the paper, theories of radiation transfer, applied mathematical statistics and clinical research methods are used. The statistical indicators of the developed diagnostic methods are given, the principle of the device construction is described.Results. An original method and principle for constructing a device for assessing the functional state of microcirculatory-tissue systems of the human body based on multiparametric optical diagnostics has been developed.Conclusion. The present work presents a method and device for assessing the functional state of microcirculatory-tissue systems of the human body based on this approach. The basic principles of each of the diagnostic channels (laser Doppler flowmetry, fluorescence spectroscopy and diffuse reflectance spectroscopy) are described. Examples of the clinical application of the described device in various fields of medicine (endocrinology, rheumatology, minimally invasive surgery) are presented. The method proposed in this article and principle for constructing a device with the possibility of its technical adaptation by developing additional probes for specific tasks of biomedical research makes optical non-invasive diagnostics affordable and increases its information content.ΠΠ²Π΅Π΄Π΅Π½ΠΈΠ΅. ΠΠ°ΡΡΡΠ΅Π½ΠΈΡ Π΄Π΅ΡΡΠ΅Π»ΡΠ½ΠΎΡΡΠΈ ΠΌΠΈΠΊΡΠΎΡΠΈΡΠΊΡΠ»ΡΡΠΎΡΠ½ΠΎ-ΡΠΊΠ°Π½Π΅Π²ΡΡ
ΡΠΈΡΡΠ΅ΠΌ ΠΎΡΠ³Π°Π½ΠΈΠ·ΠΌΠ° ΡΠ΅Π»ΠΎΠ²Π΅ΠΊΠ° ΠΈΠ³ΡΠ°ΡΡ ΠΊΠ»ΡΡΠ΅Π²ΡΡ ΡΠΎΠ»Ρ Π² ΠΏΠ°ΡΠΎΠ³Π΅Π½Π΅Π·Π΅ ΠΎΡΠ»ΠΎΠΆΠ½Π΅Π½ΠΈΠΉ ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ. ΠΠ΄Π½Π°ΠΊΠΎ ΠΏΡΠΈ Π½Π΅ΠΈΠ½Π²Π°Π·ΠΈΠ²Π½ΠΎΠΌ ΠΌΠΎΠ½ΠΈΡΠΎΡΠΈΠ½Π³Π΅ ΠΌΠΈΠΊΡΠΎΡΠΈΡΠΊΡΠ»ΡΡΠΎΡΠ½ΠΎΠΉ ΡΡΠ½ΠΊΡΠΈΠΈ ΠΈ ΠΌΠ΅ΡΠ°Π±ΠΎΠ»ΠΈΡΠ΅ΡΠΊΠΈΡ
Π½Π°ΡΡΡΠ΅Π½ΠΈΠΉ ΡΡΡΠ΅ΡΡΠ²ΡΠ΅Ρ ΡΡΠ΄ Π½Π΅ΡΠ΅ΡΠ΅Π½Π½ΡΡ
ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΈ ΠΈΠ½ΡΡΡΡΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
ΠΏΡΠΎΠ±Π»Π΅ΠΌ, ΡΠ²ΡΠ·Π°Π½Π½ΡΡ
Ρ Π½Π΅Π΄ΠΎΡΡΠ°ΡΠΎΡΠ½ΠΎΠΉ ΡΠΎΡΠ½ΠΎΡΡΡΡ, Π²ΠΎΡΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΠΈΠΌΠΎΡΡΡΡ ΠΈ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠ²Π½ΠΎΡΡΡΡ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΎΠ² Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΠΊΠΈ. ΠΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π½ΡΠΉ Π² Π½Π°ΡΡΠΎΡΡΠ΅ΠΉ ΡΡΠ°ΡΡΠ΅ ΠΏΠΎΠ΄Ρ
ΠΎΠ΄ ΠΌΡΠ»ΡΡΠΈΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΎΠΏΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΠΊΠΈ, ΠΏΡΠΈ ΠΊΠΎΡΠΎΡΠΎΠΌ ΠΎΠΏΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ Π½Π΅ΠΈΠ½Π²Π°Π·ΠΈΠ²Π½ΡΠ΅ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ ΠΏΡΠΈΠΌΠ΅Π½ΡΡΡΡΡ Π² ΡΠΎΡΠ΅ΡΠ°Π½Π½ΠΎΠΌ Π²ΠΈΠ΄Π΅, ΠΌΠΎΠΆΠ΅Ρ ΡΡΠ°ΡΡ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΡΠΌ ΠΈΠ½ΡΡΡΡΠΌΠ΅Π½ΡΠΎΠΌ, ΡΠ»ΡΡΡΠ°ΡΡΠΈΠΌ ΡΡΠ²ΡΡΠ²ΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΡ ΠΈ ΡΠΎΡΠ½ΠΎΡΡΡ Π²ΡΡΠ²Π»Π΅Π½ΠΈΡ ΠΌΠΈΠΊΡΠΎΡΠΈΡΠΊΡΠ»ΡΡΠΎΡΠ½ΡΡ
ΠΈ ΠΌΠ΅ΡΠ°Π±ΠΎΠ»ΠΈΡΠ΅ΡΠΊΠΈΡ
Π½Π°ΡΡΡΠ΅Π½ΠΈΠΉ Π½Π° ΡΠ°Π½Π½Π΅ΠΉ ΡΡΠ°Π΄ΠΈΠΈ, ΡΡΠΎ Π²Π°ΠΆΠ½ΠΎ Π΄Π»Ρ Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΠΊΠΈ ΠΈ Π»Π΅ΡΠ΅Π½ΠΈΡ Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ ΡΠ°Π·Π»ΠΈΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΠΈΠ»Ρ.Π¦Π΅Π»Ρ ΡΠ°Π±ΠΎΡΡ. Π Π°Π·ΡΠ°Π±ΠΎΡΠΊΠ° ΠΌΠ΅ΡΠΎΠ΄Π° ΠΈ ΡΡΡΡΠΎΠΉΡΡΠ²Π° Π΄Π»Ρ ΠΎΡΠ΅Π½ΠΊΠΈ ΡΡΠ½ΠΊΡΠΈΠΎΠ½Π°Π»ΡΠ½ΠΎΠ³ΠΎ ΡΠΎΡΡΠΎΡΠ½ΠΈΡ ΠΌΠΈΠΊΡΠΎΡΠΈΡΠΊΡΠ»ΡΡΠΎΡΠ½ΠΎ-ΡΠΊΠ°Π½Π΅Π²ΡΡ
ΡΠΈΡΡΠ΅ΠΌ ΠΎΡΠ³Π°Π½ΠΈΠ·ΠΌΠ° ΡΠ΅Π»ΠΎΠ²Π΅ΠΊΠ° Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΌΡΠ»ΡΡΠΈΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΎΠΏΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΠΊΠΈ ΠΈ ΠΎΡΠ΅Π½ΠΊΠ° ΠΈΡ
Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΏΠΎΡΠ΅Π½ΡΠΈΠ°Π»Π° Π² ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΏΡΠ°ΠΊΡΠΈΠΊΠ΅.ΠΠ°ΡΠ΅ΡΠΈΠ°Π»Ρ ΠΈ ΠΌΠ΅ΡΠΎΠ΄Ρ. Π ΡΠ°Π±ΠΎΡΠ΅ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½Ρ ΡΠ΅ΠΎΡΠΈΠΈ ΠΏΠ΅ΡΠ΅Π½ΠΎΡΠ° ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ, ΠΏΡΠΈΠΊΠ»Π°Π΄Π½ΠΎΠΉ ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΡΠ°ΡΠΈΡΡΠΈΠΊΠΈ ΠΈ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ² ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ. ΠΡΠΈΠ²Π΅Π΄Π΅Π½Ρ ΡΡΠ°ΡΠΈΡΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»ΠΈ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΡΡ
ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ² Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΠΊΠΈ, ΠΎΠΏΠΈΡΠ°Π½ ΠΏΡΠΈΠ½ΡΠΈΠΏ ΠΏΠΎΡΡΡΠΎΠ΅Π½ΠΈΡ ΡΡΡΡΠΎΠΉΡΡΠ²Π°.Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½ ΠΎΡΠΈΠ³ΠΈΠ½Π°Π»ΡΠ½ΡΠΉ ΠΌΠ΅ΡΠΎΠ΄ ΠΈ ΠΏΡΠΈΠ½ΡΠΈΠΏ ΠΏΠΎΡΡΡΠΎΠ΅Π½ΠΈΡ ΡΡΡΡΠΎΠΉΡΡΠ²Π° Π΄Π»Ρ ΠΎΡΠ΅Π½ΠΊΠΈ ΡΡΠ½ΠΊΡΠΈΠΎΠ½Π°Π»ΡΠ½ΠΎΠ³ΠΎ ΡΠΎΡΡΠΎΡΠ½ΠΈΡ ΠΌΠΈΠΊΡΠΎΡΠΈΡΠΊΡΠ»ΡΡΠΎΡΠ½ΠΎ-ΡΠΊΠ°Π½Π΅Π²ΡΡ
ΡΠΈΡΡΠ΅ΠΌ ΠΎΡΠ³Π°Π½ΠΈΠ·ΠΌΠ° ΡΠ΅Π»ΠΎΠ²Π΅ΠΊΠ° Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΌΡΠ»ΡΡΠΈΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΎΠΏΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΠΊΠΈ.ΠΠ°ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅. Π Π½Π°ΡΡΠΎΡΡΠ΅ΠΉ ΡΡΠ°ΡΡΠ΅ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ ΠΌΠ΅ΡΠΎΠ΄ ΠΈ ΡΡΡΡΠΎΠΉΡΡΠ²ΠΎ Π΄Π»Ρ ΠΎΡΠ΅Π½ΠΊΠΈ ΡΡΠ½ΠΊΡΠΈΠΎΠ½Π°Π»ΡΠ½ΠΎΠ³ΠΎ ΡΠΎΡΡΠΎΡΠ½ΠΈΡ ΠΌΠΈΠΊΡΠΎΡΠΈΡΠΊΡΠ»ΡΡΠΎΡΠ½ΠΎ-ΡΠΊΠ°Π½Π΅Π²ΡΡ
ΡΠΈΡΡΠ΅ΠΌ ΠΎΡΠ³Π°Π½ΠΈΠ·ΠΌΠ° ΡΠ΅Π»ΠΎΠ²Π΅ΠΊΠ° Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΡΠΊΠ°Π·Π°Π½Π½ΠΎΠ³ΠΎ ΠΏΠΎΠ΄Ρ
ΠΎΠ΄Π°. ΠΠΏΠΈΡΠ°Π½Ρ ΠΎΡΠ½ΠΎΠ²Π½ΡΠ΅ ΠΏΡΠΈΠ½ΡΠΈΠΏΡ ΠΊΠ°ΠΆΠ΄ΠΎΠ³ΠΎ ΠΈΠ· Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΊΠ°Π½Π°Π»ΠΎΠ² β Π»Π°Π·Π΅ΡΠ½ΠΎΠΉ Π΄ΠΎΠΏΠ»Π΅ΡΠΎΠ²ΡΠΊΠΎΠΉ ΡΠ»ΠΎΡΠΌΠ΅ΡΡΠΈΠΈ, ΡΠ»ΡΠΎΡΠ΅ΡΡΠ΅Π½ΡΠ½ΠΎΠΉ ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΠΈΠΈ ΠΈ ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΠΈΠΈ Π΄ΠΈΡΡΡΠ·Π½ΠΎΠ³ΠΎ ΠΎΡΡΠ°ΠΆΠ΅Π½ΠΈΡ. ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ ΠΏΡΠΈΠΌΠ΅ΡΡ ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΎΠΏΠΈΡΠ°Π½Π½ΠΎΠ³ΠΎ ΡΡΡΡΠΎΠΉΡΡΠ²Π° Π² ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
ΠΎΠ±Π»Π°ΡΡΡΡ
ΠΌΠ΅Π΄ΠΈΡΠΈΠ½Ρ (ΡΠ½Π΄ΠΎΠΊΡΠΈΠ½ΠΎΠ»ΠΎΠ³ΠΈΡ, ΡΠ΅Π²ΠΌΠ°ΡΠΎΠ»ΠΎΠ³ΠΈΡ, ΠΌΠΈΠ½ΠΈ-ΠΈΠ½Π²Π°Π·ΠΈΠ²Π½Π°Ρ Ρ
ΠΈΡΡΡΠ³ΠΈΡ). ΠΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π½ΡΠΉ ΠΌΠ΅ΡΠΎΠ΄ ΠΈ ΠΏΡΠΈΠ½ΡΠΈΠΏ ΠΏΠΎΡΡΡΠΎΠ΅Π½ΠΈΡ ΡΡΡΡΠΎΠΉΡΡΠ²Π° Ρ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡΡ Π΅Π³ΠΎ ΡΠ΅Ρ
Π½ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°Π΄Π°ΠΏΡΠ°ΡΠΈΠΈ Π·Π° ΡΡΠ΅Ρ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠΈ Π΄ΠΎΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»ΡΠ½ΡΡ
Π·ΠΎΠ½Π΄ΠΎΠ² Π΄Π»Ρ ΠΊΠΎΠ½ΠΊΡΠ΅ΡΠ½ΡΡ
Π·Π°Π΄Π°Ρ Π±ΠΈΠΎΠΌΠ΅Π΄ΠΈΡΠΈΠ½ΡΠΊΠΈΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ Π΄Π΅Π»Π°Π΅Ρ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠ΅ ΠΎΠΏΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π½Π΅ΠΈΠ½Π²Π°Π·ΠΈΠ²Π½ΠΎΠΉ Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΠΊΠΈ Π΄ΠΎΡΡΡΠΏΠ½ΡΠΌ ΠΈ ΠΏΠΎΠ²ΡΡΠ°Π΅Ρ Π΅Π΅ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠ²Π½ΠΎΡΡΡ
Novel wearable VCSEL-based blood perfusion sensor
A wearable 850 nm VCSEL-based blood perfusion sensor operating on the principles of laser Doppler flowmetry (LDF) and Dynamic Light Scattering (DLS) has been developed and tested. The sensitivity of the sensor to changes in skin blood perfusion has been demonstrated
Blood flow oscillations as a signature of microvascular abnormalities
Laser Doppler flowmetry (LDF) was utilized for blood ow measurements. Wavelet analysis was used to identify spectral characteristics of the LDF signal in patients with rheumatic diseases and diabetes mellitus. Baseline measurements were applied for both pathological groups. Blood flow oscillations analyses were performed by means of the wavelet transform. Higher baseline perfusion was observed in both pathological groups in comparison to controls. Differences in the spectral properties between the groups studied were revealed. The results obtained demonstrated that spectral properties of the LDF signal collected in basal conditions may be the signature of microvasculature functional state
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