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Biomedical subjects

V N Fedorova

Publications and source records attributed to V N Fedorova.

10 recordsLinked to original sources
PubMed1994

[A new method to determine the type of scar-changed tissue].

The mechanical parameters of the skin and scarring tissues were assessed in children aged 3-14 years who had various scar types, by using an ACA apparatus, which measures the propagation rates of superficial acoustic waves in the skin. It was found that the types (atrophic, hypertrophic, keloid) of scars could be significantly differentiated from the value of this parameter. The comparison of clinical and acoustic data shows high (as high as 90%) significance of the latter.

Acoustics↗
PubMed1993

[A method for evaluating skin mechanical parameters for examination of patients with varicose veins of the legs].

Possibility of application of the new method, based on detection of surface acoustic wave spreading velocity, for diagnostics of various disease extent. It has been determined that there is some correlation between the skin mechanical parameters at the more affected sites of it and the disease extent. Correlation between acute thrombophlebitis and skin state in affected zone has been shown.

Acoustics↗
PubMedDate not supplied

[A new method for examination of human skin vasomotions].

An original method for determination of elasticity of biological tissues from their resonance frequency has been devised. The method can be used for detection and spectral analysis of small oscillations of skin elasticity caused by vasomotions.

Adult↗
PubMedDate not supplied

[Causes of insufficient effectiveness of collagen plasty (an experimental study)].

Morphological and biomechanical features of the sclera after collagen plasty were studied in 90 eyes of 45 chinchilla rabbits. A reduction of the viscous elastic properties of the sclera 1 month after surgery was revealed, not described previously. The data on the changed mechanical characteristics of the sclera following collagen plasty are confirmed by the results of optic and electron microscopy; these data permit us to propose that the sclera in the immediate postoperative period (less than 1 month after the operation) represents a somewhat chaotic structure at the stage of active restructuring. Rational postoperative management of patients after collagen plasty is recommended.

Animals↗
PubMedDate not supplied

[Method of in vivo assessment of biomechanical properties of eye tissues (an experimental study)].

The authors assess the acoustic method for investigation of the biomechanical properties of ocular tissues. Relationship between the rate of propagation of acoustic surface waves and different physical conditions and relations with the scleral structure were studied on specially designed models. The detected regularities permit the authors recommend the method of life time assessment of biomechanical properties for clinical ophthalmology as an additional diagnostic method for objective assessment of the elastic properties of ocular tissues.

Animals↗
PubMedDate not supplied

[Biomechanical regularities in the distribution of tension in various topographic zones of the eyelids in children in health and myopia of different degree].

The authors assessed the method for life-time study of the biomechanical characteristics of ocular tissues in 281 children (562 eyes) aged 7 to 14 years. The method for assessing the biomechanics of the eyelids is described. In detail. The rates of propagation of acoustic waves in normal tissue and in 1.0 to 6.0 diopters myopia are presented. A correlation has been revealed between the increase of the velocity of acoustic surface waves, propagating in the horizontal direction in the internal segment of the orbital area of the upper eyelids, and the value of clinical refraction in myopia. The authors consider clinical signs of myopia-screwing up one's eyes and a wider lid slit-from a biomechanical viewpoint.

Adolescent↗