Ultrasonic Non-Invasive Method for Relative Changes Measurements of Intima-Media Thickness in Artery Walls
| Autor: | P. Gutkiewicz, T. Powałowski, Janusz Wójcik, Z. Trawiński |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Materials science
business.industry Quantitative Biology::Tissues and Organs Physics::Medical Physics Non invasive General Physics and Astronomy Artery walls Mechanics Penetration (firestop) Optics Intima-media thickness medicine.artery Perpendicular medicine Ultrasonic sensor Boundary value problem Common carotid artery business |
| Zdroj: | Acta Physica Polonica A. 114:A-243 |
| ISSN: | 1898-794X 0587-4246 |
| DOI: | 10.12693/aphyspola.114.a-243 |
| Popis: | The aim of this paper is to present the new method for relative changes measurements of intima-media thickness in the common carotid artery wall. The numerical solver was created for calculation of the flelds of ultrasonic beams and scattered flelds under difierent boundary conditions and difierent angles of penetration of ultrasonic beams with respect to the position of the arterial wall. The cylindrical model of the artery was changing the radius and thickness of the wall under cyclic variation of blood pressure. The presented method was verifled on a pipe made of latex. The paper describes also the initial results of examinations of the intima-media thickness. The good agreement for the angle dependence and the perpendicular ultrasonic beam displacement from the longitudinal axis of the artery segment between the numerical calculation and experimental results was obtained for difierent artery diameters. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|