Contact pressure explains half of the abdominal aortic aneurysms wall thickness inter-study variability.

ABSTRACT: The stochastic rupture risk assessment of an abdominal aortic aneurysm (AAA) critically depends on sufficient data set size that would allow for the proper distribution estimate. However, in most published cases, the data sets comprise no more than 100 samples, which is deemed insufficient to describe the tails of AAA wall thickness distribution correctly. In this study, we propose a stochastic Bayesian model to merge thickness data from various groups. The thickness data adapted from the literature were supplemented by additional data from 81 patients. The wall thickness was measured at two different contact pressures for 34 cases, which allowed us to estimate the radial stiffness. Herein, the proposed stochastic model is formulated to predict the undeformed wall thickness. Furthermore, t

SUBMITTER: Kracik J 

PROVIDER: S-EPMC11611137 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature