Ozturk Caglar, Pak Daniel H, Rosalia Luca, Goswami Debkalpa, Robakowski Mary E, McKay Raymond, Nguyen Christopher T, Duncan James S, Roche Ellen T
Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, 02139-4307, USA.
Bioengineering Research Group, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton SO17 1BJ, UK.
Adv Sci (Weinh). 2025 Feb;12(5):e2404755. doi: 10.1002/advs.202404755. Epub 2024 Dec 12.
Aortic stenosis (AS) is the most common valvular heart disease in developed countries. High-fidelity preclinical models can improve AS management by enabling therapeutic innovation, early diagnosis, and tailored treatment planning. However, their use is currently limited by complex workflows necessitating lengthy expert-driven manual operations. Here, we propose an AI-powered computational framework for accelerated and democratized patient-specific modeling of AS hemodynamics from computed tomography (CT). First, we demonstrate that the automated meshing algorithms can generate task-ready geometries for both computational and benchtop simulations with higher accuracy and 100 times faster than existing approaches. Then, we show that the approach can be integrated with fluid-structure interaction and soft robotics models to accurately recapitulate a broad spectrum of clinical hemodynamic measurements of diverse AS patients. The efficiency and reliability of these algorithms make them an ideal complementary tool for personalized high-fidelity modeling of AS biomechanics, hemodynamics, and treatment planning.
主动脉瓣狭窄(AS)是发达国家最常见的心脏瓣膜疾病。高保真临床前模型可以通过促进治疗创新、早期诊断和定制治疗方案来改善AS的管理。然而,目前其应用受到复杂工作流程的限制,这些流程需要由专家驱动的冗长手动操作。在此,我们提出了一种由人工智能驱动的计算框架,用于从计算机断层扫描(CT)中加速并实现AS血流动力学的患者特异性建模民主化。首先,我们证明了自动网格划分算法能够以比现有方法更高的精度和快100倍的速度为计算模拟和台式模拟生成可用于任务的几何模型。然后,我们表明该方法可以与流固相互作用和软机器人模型相结合,以准确再现不同AS患者的广泛临床血流动力学测量结果。这些算法的效率和可靠性使其成为AS生物力学、血流动力学和治疗方案个性化高保真建模的理想补充工具。