Dynamic simulation and Doppler Ultrasonography validation of blood flow behavior in Abdominal Aortic Aneurysm.

Botar, Cristian C; Tóth, Árpád Á; Klisuric, Olivera R; Niciforovic, Dijana D; Vucaj Cirilovic, Viktorija A; Till, Viktor E

Botar, Cristian C; Tóth, Árpád Á; Klisuric, Olivera R; Niciforovic, Dijana D; Vucaj Cirilovic, Viktorija A; Till, Viktor E.

Afiliación

Botar CC; "Babes-Bolyai" University, Department of Chemical Engineering, Cluj-Napoca, Romania.
Tóth ÁÁ; University of Novi Sad, Faculty of Sciences, Department of Physics, Novi Sad, Serbia. Electronic address: arpad.toth@df.uns.ac.rs.
Klisuric OR; University of Novi Sad, Faculty of Sciences, Department of Physics, Novi Sad, Serbia.
Niciforovic DD; Clinical Centre of Vojvodina, Centre of Radiology, Novi Sad, Serbia; University of Novi Sad, Medical Faculty, Novi Sad, Serbia.
Vucaj Cirilovic VA; Clinical Centre of Vojvodina, Centre of Radiology, Novi Sad, Serbia; University of Novi Sad, Medical Faculty, Novi Sad, Serbia.
Till VE; Clinical Centre of Vojvodina, Centre of Radiology, Novi Sad, Serbia; University of Novi Sad, Medical Faculty, Novi Sad, Serbia.

Phys Med ; 37: 1-8, 2017 May.

Article en En | MEDLINE | ID: mdl-28535909

RESUMEN

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 65years) with diagnosed AAA. Good correspondence between computed velocities in AAA and measured values with Doppler US (Patient 1 0.60m·s-1 versus 0.61m·s-1, Patient 2 0.80m·s-1 versus 0.80m·s-1, Patient 3 0.75m·s-1 versus 0.78m·s-1, Patient 4 0.50m·s-1 versus 0.49m·s-1) 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.

Asunto(s)

Aneurisma de la Aorta Abdominal/diagnóstico por imagen; Hemodinámica; Ultrasonografía Doppler; Anciano; Angiografía; Simulación por Computador; Humanos; Imagenología Tridimensional; Masculino; Modelos Teóricos; Tomografía Computarizada por Rayos X

Palabras clave

Abdominal Aortic Aneurysm (AAA); Blood flow; Computational Fluid Dynamics; Computer Aided Design

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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Aneurisma de la Aorta Abdominal / Ultrasonografía Doppler / Hemodinámica Tipo de estudio: Prognostic_studies Límite: Aged / Humans / Male Idioma: En Revista: Phys Med Asunto de la revista: BIOFISICA / BIOLOGIA / MEDICINA Año: 2017 Tipo del documento: Article País de afiliación: Rumanía Pais de publicación: Italia

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