Title: A theoretical framework for flow-compatible reconstruction of heart motion Show Chinese title

Title: 兼容流动的心脏运动重建的理论框架

Abstract: Accurate three-dimensional (3D) reconstruction of cardiac chamber motion from time-resolved medical imaging modalities is of growing interest in both the clinical and biomechanical fields. Despite recent advancement, the cardiac motion reconstruction process remains complex and prone to uncertainties. Moreover, traditional assessments often focus on static comparisons, lacking assurances of dynamic consistency and physical relevance. This work introduces a novel paradigm of flow-compatible motion reconstruction, integrating anatomical imaging with flow data to ensure adherence to fundamental physical principles, such as mass and momentum conservation. The approach is demonstrated in the context of right ventricular motion, utilizing diffeomorphic mappings and multi-slice MRI to achieve dynamically consistent and physically robust reconstructions. Results show that enforcing flow compatibility within the reconstruction process is feasible and enhances the physical realism of the resulting kinematics. Show Chinese abstract

Abstract: 从时间分辨的医学成像模态中准确重建心脏腔室运动在临床和生物力学领域引起了越来越多的兴趣。 尽管近期取得了进展，但心脏运动重建过程仍然复杂且容易出现不确定性。 此外，传统的评估通常集中在静态比较上，缺乏动态一致性和物理相关性的保证。 本研究引入了一种新的与流动兼容的运动重建范式，将解剖学成像与流动数据相结合，以确保符合质量守恒和动量守恒等基本物理原理。 该方法在右心室运动的背景下进行了演示，使用微分同胚映射和多层MRI实现动态一致且物理稳健的重建。 结果显示，在重建过程中强制执行流动兼容性是可行的，并增强了最终运动学的物理现实性。