Individual typological variability of macro-microscopical and biomechanical properties of intracranial part of vertebral artery

Abstract

<p><em>The purpose </em>of the study is to reveal the features of individual typological variability of macro-microscopical and biomechanical properties of the wall of intracranial part of vertebral arteries (IPVA) in adult people. <em>Materials and methods: </em>The research material of 228 samples of IPVA has been received by autopsy of 115 corpses of people aged 21-84 years. External diameter, thickness of the wall, diameter of lumen of artery have been measured. Biomechanical properties of IPVA have been studied by explosive carTira Test 28005 with a loading cell of 100 H. General strength (H), breaking point (H/mm²), Young»s modulus (H/mm²), absolute (mm) and relative deformation (%) of samples of arteries have been defined. <em>Results: </em>3 groups of variants of arteries have been isolated: with average size of a sign (M±y), less than the average size (&lt;M — y) and more than the average size (&gt;M+ y). <em>The conclusion: </em>The obtained data about functional anatomy of vascular bed of brain may be useful in blood flow modeling and optimization of extra — and intravascular interventions.</p>

Keywords

• deformation
• intracranial part of vertebral arteries
• strength
• variability