ВОЗРАСТНАЯ ИЗМЕНЧИВОСТЬ ВЕЛИЧИНЫ ФРАКТАЛЬНОГО ИНДЕКСА ПОВЕРХНОСТНОЙ АРТЕРИАЛЬНОЙ СЕТИ БОЛЬШИХ ПОЛУШАРИЙ В ЗАВИСИМОСТИ ОТ ВЕЛИЧИНЫ ПОКАЗАТЕЛЯ НАРУЖНОГО ДИАМЕТРА ВНУТРЕННИХ СОННЫХ АРТЕРИЙ

Stable perfusion of the nervous tissue is provided by adequate mechanisms of both main and microcirculatory blood supply; structural changes in both the main vessels of the head and neck and the superficial arterial bed of the cerebral hemispheres are related to the development of ischemia. In view of this, it is absolutely necessary to study the relationship between the morphometric parameters of large arterial trunks and the characteristics of the adequacy of the superficial cerebral blood supply.The aim of the work was to study the values of the fractal index of the superficial arterial bed of the upper lateral surface of individual lobes of the cerebral hemispheres, depending on the value of the outer diameter of the right and left internal carotid arteries in different age groups.Material and methods. In accordance with the purpose and objectives of the work, the outer diameter of the cerebral section of the right and left internal carotid artery after the main arterial trunks left it at the base of the brain, as well as the value of the fractal index of the superficial arterial bed of the convexital surface of the right and left cerebral hemispheres of 54 people aged 29 -69 years, whose cause of death is not associated with cerebrovascular pathology. The subjects consisted of three age groups: the first period of adulthood – 18 people (9 men and 9 women), the second period of mature age – 18 people (9 men and 9 women), the elderly – 18 people (9 men and 9 women). Statistical processing of the obtained results was carried out using a licensed computer program MedStat.Results. In the course of statistical processing of the results obtained, it was found that an increase in the external diameter of the internal carotid artery causes an increase in the fractal index of the superficial arterial bed on the convexital surface of the frontal lobe of both hemispheres of all studied age groups, the parietal lobe of both hemispheres of persons of the first period of maturity, the right parietal lobe of persons of the second period. maturity and the left parietal lobe of the elderly, the temporal lobe of both hemispheres of the elderly.Conclusion. The results obtained complement the picture of individual and age-related anatomical variability of the superficial arterial bed of the cerebral hemispheres and allow new steps to be taken to establish the reference values of the norm of the fractal index of the superficial vascular network for the upper-lateral surface of the cerebral hemispheres.