Vascular stenosis asymmetry influences considerably pressure gradient and flow volume

Title:

Vascular stenosis asymmetry influences considerably pressure gradient and flow volume

Creator:

Novakova, L., Kolinsky, J., Adamec, J., Kudlicka, J., and Jan Malík

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:88485643-6c59-4c6c-9d9b-35b3add8a509
uuid:88485643-6c59-4c6c-9d9b-35b3add8a509
issn:0862-8408

Subject:

Fyziologie člověka a srovnávací fyziologie, ateroskleróza, atherosclerosis, stenosis, dialysis access, pressure gradient, 14, and 612

Type:

article, články, model:article, and TEXT

Format:

print, bez média, and svazek

Description:

Vascular stenosis is often described only by its percentage in both clinical and scientific praxis. Previous studies gave inconclusive results regarding the effect of stenosis eccentricity on its hemodynamic effect. The aim of this experimental study was to investigate and quantify the effect of stenosis severity and eccentricity on the pressure drop. A combination of pressure and flow measurements by Par ticle Imaging Velocimetry (PIV) method was used. Models of the same stenosis significance but with different levels of eccentricity were studied in vitro by PIV. This study has shown that stenosis asymmetry is associated with more profound pressure drop an d flow volume decrease. On the contrary, pressure drop and flow volume decrease were not further significantly influenced by the level of asymmetry. Hemodynamic changes associated with stenosis eccentricity must be taken into account in both clinical and s cientific studies., L. Novakova, J. Kolinsky, J. Adamec, J. Kudlicka, J. Malik., and Obsahuje bibliografii

Language:

English

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Source:

Physiological research | 2016 Volume:65 | Number:1

Harvested from:

CDK

Metadata only:

false