作者
Ali Madani, Ahmed Bakhaty, Jiwon Kim, Yara Mubarak, Mohammad RK Mofrad
发表日期
2019/8/1
期刊
Journal of biomechanical engineering
卷号
141
期号
8
出版商
American Society of Mechanical Engineers Digital Collection
简介
Finite element and machine learning modeling are two predictive paradigms that have rarely been bridged. In this study, we develop a parametric model to generate arterial geometries and accumulate a database of 12,172 2D finite element simulations modeling the hyperelastic behavior and resulting stress distribution. The arterial wall composition mimics vessels in atherosclerosis–a complex cardiovascular disease and one of the leading causes of death globally. We formulate the training data to predict the maximum von Mises stress, which could indicate risk of plaque rupture. Trained deep learning models are able to accurately predict the max von Mises stress within 9.86% error on a held-out test set. The deep neural networks outperform alternative prediction models and performance scales with amount of training data. Lastly, we examine the importance of contributing features on stress value and location …
引用总数
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