Low-Cost IMU-Based System for Automated Parkinson’s Subtype and Stage Classification to Support Precision Rehabilitation

IF 5.2 2区 医学 Q2 ENGINEERING, BIOMEDICAL
Xiangzhi Liu;Hanyi Huang;Yu Gu;Jiaxing Li;Xiangliang Zhang;Tao Liu
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引用次数: 0

Abstract

Parkinson’s disease (PD) is one of the most common progressive neurodegenerative disorder, for which early detection and precise rehabilitation planning are essential to alleviate its impact on quality of life and reduce societal burden. Accurate, automated PD subtype classification and staging play a key role in designing effective rehabilitation strategies while minimizing reliance on intensive expert assessments. Unlike existing automated methods that typically depend on high–cost medical imaging (e.g., MRI) or extensive sensor networks, we introduce a low–cost motion measurement system employing only two inertial measurement units (IMUs) placed on the lower legs. We propose a Symbiotic Graph Attention Network (SGAT)–based algorithm that fuses node features and whole-body features for automated PD subtype and stage detection. By establishing a symbiotic mechanism between the subtype and staging tasks and using adaptive fusion weights, our method achieves outstanding performance—subtype accuracy of 0.91 and staging accuracy of 0.85—validated on data from 46 participants. Notably, the entire detection and recognition process requires merely a simple walking task and incurs minimal time cost. The system’s affordability, ease of use, and scalability underscore its substantial potential for large-scale clinical deployment.
基于imu的低成本帕金森病亚型和分期自动分类系统支持精确康复
帕金森病(PD)是最常见的进行性神经退行性疾病之一,早期发现和精确的康复计划对于减轻其对生活质量的影响和减轻社会负担至关重要。准确、自动化的PD亚型分类和分期在设计有效的康复策略中起着关键作用,同时最大限度地减少对密集专家评估的依赖。与现有的自动化方法不同,这些方法通常依赖于高成本的医学成像(例如,MRI)或广泛的传感器网络,我们引入了一种低成本的运动测量系统,该系统仅使用放置在小腿上的两个惯性测量单元(imu)。我们提出了一种基于共生图注意网络(Symbiotic Graph Attention Network, SGAT)的算法,该算法融合了节点特征和全身特征,用于PD亚型和阶段的自动检测。通过建立亚型任务和分期任务之间的共生机制,并使用自适应融合权值,我们的方法在46个参与者的数据上获得了出色的性能,亚型精度为0.91,分期精度为0.85。值得注意的是,整个检测和识别过程只需要一个简单的步行任务,并且花费的时间成本最小。该系统的可负担性、易用性和可扩展性强调了其大规模临床部署的巨大潜力。
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来源期刊
CiteScore
8.60
自引率
8.20%
发文量
479
审稿时长
6-12 weeks
期刊介绍: Rehabilitative and neural aspects of biomedical engineering, including functional electrical stimulation, acoustic dynamics, human performance measurement and analysis, nerve stimulation, electromyography, motor control and stimulation; and hardware and software applications for rehabilitation engineering and assistive devices.
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