دورية أكاديمية
The Role of One-Dimensional Model-Generated Inter-Subject Variations in Systemic Properties on Wall Shear Stress Indices of Intracranial Aneurysms
| العنوان: | The Role of One-Dimensional Model-Generated Inter-Subject Variations in Systemic Properties on Wall Shear Stress Indices of Intracranial Aneurysms |
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| المؤلفون: | Stevens, Raoul R. F., Donders, Wouter P., Quicken, Sjeng, van de Vosse, Frans N., Mess, Werner H., Delhaas, Tammo, Huberts, Wouter |
| المصدر: | Stevens , R R F , Donders , W P , Quicken , S , van de Vosse , F N , Mess , W H , Delhaas , T & Huberts , W 2020 , ' The Role of One-Dimensional Model-Generated Inter-Subject Variations in Systemic Properties on Wall Shear Stress Indices of Intracranial Aneurysms ' , Ieee Transactions on Biomedical Engineering , vol. 67 , no. 4 , pp. 1030-1039 . https://doi.org/10.1109/TBME.2019.2928416Test |
| سنة النشر: | 2020 |
| المجموعة: | Maastricht University Research Publications |
| مصطلحات موضوعية: | ARTERY, Adaptive generalised polynomial chaos expansion, Aneurysm, Blood flow, Boundary conditions, CENTRAL HYPOVOLEMIA, CEREBRAL ANEURYSMS, Computational modeling, DIAMETER, Databases, HEMODYNAMICS, RISK, RUPTURE, SIMULATIONS, STROKE VOLUME VARIABILITY, Stress, Three-dimensional displays, VALIDATION, pulse wave propagation model, sensitivity analysis, COMPUTATIONAL HEMODYNAMICS |
| الوصف: | Variations in systemic properties of the arterial tree, such as aging-induced vessel stiffness, can alter the shape of pressure and flow waveforms. As a consequence, the hemodynamics around a cerebral aneurysm change, and therefore, also the corresponding in- and outlet boundary conditions (BCs) used for three-dimensional (3D) calculations of hemodynamic indices. In this study, we investigate the effects of variations in systemic properties on wall shear stress (WSS) indices of a cerebral aneurysm. We created a virtual patient database by varying systemic properties within physiological ranges. BCs for 3D-CFD simulations were derived using a pulse wave propagation model for each realization of the virtual database. WSS indices were derived from the 3D simulations and their variabilities quantified. Variations in BCs, caused by changes in systemic properties, yielded variabilities in the WSS indices that were of the same order of magnitude as differences in these WSS indices between ruptured and unruptured aneurysms. Sensitivity analysis showed that the systemic properties impacted both in- and outlet BCs simultaneously and altered the WSS indices. We conclude that the influence of variations in patient-specific systemic properties on WSS indices should be evaluated when using WSS indices in multidisciplinary rupture prediction models. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1109/TBME.2019.2928416 |
| الإتاحة: | https://doi.org/10.1109/TBME.2019.2928416Test https://cris.maastrichtuniversity.nl/en/publications/8d61d9d4-82ae-41d0-82e2-8a79e64d4188Test |
| حقوق: | info:eu-repo/semantics/closedAccess |
| رقم الانضمام: | edsbas.672165CC |
| قاعدة البيانات: | BASE |
| DOI: | 10.1109/TBME.2019.2928416 |
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