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Annals of Biomedical Engineering

, Volume 38, Issue 11, pp 3323–3337 | Cite as

Patient-Based Abdominal Aortic Aneurysm Rupture Risk Prediction with Fluid Structure Interaction Modeling

  • Michalis Xenos
  • Suraj H. Rambhia
  • Yared Alemu
  • Shmuel Einav
  • Nicos Labropoulos
  • Apostolos Tassiopoulos
  • John J. Ricotta
  • Danny BluesteinEmail author
Article

Abstract

Elective repair of abdominal aortic aneurysm (AAA) is warranted when the risk of rupture exceeds that of surgery, and is mostly based on the AAA size as a crude rupture predictor. A methodology based on biomechanical considerations for a reliable patient-specific prediction of AAA risk of rupture is presented. Fluid–structure interaction (FSI) simulations conducted in models reconstructed from CT scans of patients who had contained ruptured AAA (rAAA) predicted the rupture location based on mapping of the stresses developing within the aneurysmal wall, additionally showing that a smaller rAAA presented a higher rupture risk. By providing refined means to estimate the risk of rupture, the methodology may have a major impact on diagnostics and treatment of AAA patients.

Keywords

Ruptured abdominal aortic aneurysm Aneurysmal strength Rupture potential index Fluid–structure interaction Reconstruction of patient based geometry 

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Copyright information

© Biomedical Engineering Society 2010

Authors and Affiliations

  • Michalis Xenos
    • 1
  • Suraj H. Rambhia
    • 1
  • Yared Alemu
    • 1
  • Shmuel Einav
    • 1
  • Nicos Labropoulos
    • 3
  • Apostolos Tassiopoulos
    • 3
  • John J. Ricotta
    • 2
    • 3
  • Danny Bluestein
    • 1
    Email author
  1. 1.Department of Biomedical EngineeringStony Brook UniversityStony BrookUSA
  2. 2.Department of SurgeryWashington Hospital CenterWashingtonUSA
  3. 3.Department of SurgeryStony Brook University HospitalStony BrookUSA

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