AGE AND SEX HEMODYNAMIC CHARACTERISTICS OF CEREBRAL ARTERIES

• Published in: Acta biologica Sibirica Vol. 1; no. 3-4; pp. 199 - 243
• Main Authors: Filatova, O. V., Altai State University, Barnaul. ol-fil@mail.ru, Sidorenko, A. A
• Format: Journal Article
• Language: English; Russian
• Published: Altai State University, Biological Faculty 23.12.2015
• ISSN: 2412-1908; 2412-1908
• DOI: 10.14258/abs.v1i3-4.984

The study was dedicated to the analysis of the current state of the problem of studying the hemodynamic performance of the arteries supplying the brain. The comparative results of the study of the arteries by various research methods in a wide age range. It has been established that during the period from early childhood to adolescence and from the first mature to old age there is an increase in the diameter of the internal carotid arteries. The phases of increased vascular resistance by the first period of childhood, adolescence and old age are observed. Volumetric flow rate has relatively stable parameters till adolescence, and then it declines by old age. The average linear velocity, shear stress, and the Reynolds number diminish progressively twice with age. Laminar blood flow with local twists in the early stages of postnatal ontogenesis is characteristic of internal carotid arteries. The diameter of internal carotid arteries, vascular resistance index, and blood flow velocity are higher in males than in females during most age periods. Shear stress in both internal carotid arteries during the age periods studied is symmetrical and has no sex differences.