Abstract
Various local criteria of the abdominal aortic aneurysm (AAA) damage are used in the literature though their experimental validation is needed. The results of numerical flow simulation in AAAs show that the wall pressure, which is of vital importance for the risk of rupture, depends on several factors, one being the location of the intraluminal thrombus (ILT). The inclusion of ILT features in stress analysis of AAA is of importance and would likely increase the accuracy of predicting risk of AAA rupture. The ambiguous role of ILT needs to be clarified, since on one hand it contributes to the reduction of stress values forces, acting as mechanical buffer, but on the other hand it has been associated with higher AAA growth rates due to generation of elastolytic enzymes, leading to wall degradation and thus predisposing to weakening of the AAA wall.
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