Applicability of simplified computational models in prediction of peak wall stress in abdominal aortic aneurysms

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F18%3APU126116" target="_blank" >RIV/00216305:26210/18:PU126116 - isvavai.cz</a>

Výsledek na webu

<a href="https://content.iospress.com/articles/technology-and-health-care/thc171024" target="_blank" >https://content.iospress.com/articles/technology-and-health-care/thc171024</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3233/THC-171024" target="_blank" >10.3233/THC-171024</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Applicability of simplified computational models in prediction of peak wall stress in abdominal aortic aneurysms

Popis výsledku v původním jazyce

In the paper impact of different material models on the calculated peak wall stress (PWS) and peak wall rupture risk (PWRR) in abdominal aortic aneurysms (AAAs) is assessed. Computational finite element models of 70 patient-specific AAAs were created using two different material models – a realistic one based on mean population results of uniaxial tests of AAA wall considered as reference, and a 100 times stiffer artificial model. The calculated results of PWS and PWRR were tested to evaluate statistical significance of differences caused by the non-realistic material model. It was shown that for majority of AAAs the differences are insignificant but for some 10% of them their relative differences exceed 20% which may lead to incorrect decisions on their surgical treatment. This percentage of failures favours application of realistic material models in clinical practise although they are much more time-consuming.

Název v anglickém jazyce

Applicability of simplified computational models in prediction of peak wall stress in abdominal aortic aneurysms

Popis výsledku anglicky

In the paper impact of different material models on the calculated peak wall stress (PWS) and peak wall rupture risk (PWRR) in abdominal aortic aneurysms (AAAs) is assessed. Computational finite element models of 70 patient-specific AAAs were created using two different material models – a realistic one based on mean population results of uniaxial tests of AAA wall considered as reference, and a 100 times stiffer artificial model. The calculated results of PWS and PWRR were tested to evaluate statistical significance of differences caused by the non-realistic material model. It was shown that for majority of AAAs the differences are insignificant but for some 10% of them their relative differences exceed 20% which may lead to incorrect decisions on their surgical treatment. This percentage of failures favours application of realistic material models in clinical practise although they are much more time-consuming.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10610 - Biophysics

Projekt

<a href="/cs/project/LO1202" target="_blank" >LO1202: NETME CENTRE PLUS</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Technology and Health Care, Int. Journal of Health Care Engineering

ISSN

0928-7329

e-ISSN

1878-7401

Svazek periodika

26

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

165-173

Kód UT WoS článku

000427295500016

EID výsledku v databázi Scopus

2-s2.0-85053319218