左心室壁面运动有限元分析

FINITE ELEMENT ANALYSIS OF LEFT VENTRICULAR WALL MOTION

摘要: 聚焦于人体左心室壁面运动，结合通用模型与计算机断层扫描（CT）影像中提取的左心室物理点云数据，构建了个性化心脏模型。利用开源软件Differential Equations Analysis Library (Deal.II)进行壁面运动仿真，建立了完整的开源模拟流程，并探究了Neo-Hookean模型与Holzapfel-Gasser-Ogden(HGO)模型，以及不同模拟参数对左心室形变、容积变化及应力分布的影响。

Abstract: In this study, we construct a personalized heart model by integrating a generic model with point cloud data of the left ventricle (LV) extracted from computed tomography (CT) images, focusing on LV wall motion. Using the open-source code Differential Equations Analysis Library (Deal.II), we perform wall motion simulations and establish a fully open-source simulation pipeline. Additionally, we investigate the Neo-Hookean and Holzapfel-Gasser-Ogden (HGO) material models, analyzing the influence of simulation parameters on LV deformation, volume changes, and stress distribution.