کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5498305 | 1533360 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dynamic simulation and Doppler Ultrasonography validation of blood flow behavior in Abdominal Aortic Aneurysm
ترجمه فارسی عنوان
شبیه سازی دینامیک و اعتبار سنجی سونوگرافی داپلر در رفتار جریان خون در آنوریسم آئورت شکمی
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
چکیده انگلیسی
Criteria for rupture prediction of Abdominal Aortic Aneurysm (AAA) are based only on the diameter of AAA. This method does not consider complex hemodynamic forces exerted on AAA wall. The methodology used in our study combines Computer-Aided Design (CAD) with Computational Fluid Dynamics (CFD). Three-dimensional vascular structures reconstructions were based on Computed Tomography (CT) images and CAD. CFD theory was used for mathematical modeling and simulations. In this way, dynamic behavior of blood flow in bounded three-dimensional space was described. Doppler Ultrasonography (US) was used for model results validation. All simulations were based on medical investigation of 4 patients (male older than 65 years) with diagnosed AAA. Good correspondence between computed velocities in AAA and measured values with Doppler US (Patient 1 0.60 m·sâ1 versus 0.61 m·sâ1, Patient 2 0.80 m·sâ1 versus 0.80 m·sâ1, Patient 3 0.75 m·sâ1 versus 0.78 m·sâ1, Patient 4 0.50 m·sâ1 versus 0.49 m·sâ1) was noticed. The good agreement between measured and simulated velocities validates our methodology and the other data available from simulations (eg. von Misses stress) could be used to provide useful information about the possibility of AAA rupture.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica Medica - Volume 37, May 2017, Pages 1-8
Journal: Physica Medica - Volume 37, May 2017, Pages 1-8
نویسندگان
Cristian C. Botar, Árpád Á. Tóth, Olivera R. KlisuriÄ, Dijana D. NiÄiforoviÄ, Viktorija A. VuÄaj ÄiriloviÄ, Viktor E. Till,