计算机科学
肌电图
电极阵列
生物医学工程
电极
接口(物质)
计算机视觉
人工智能
工程类
物理医学与康复
医学
物理
量子力学
最大气泡压力法
气泡
并行计算
作者
Faheem Ershad,Michael J. Houston,Shubham Patel,Luis A. Contreras,Bikram Koirala,Yuntao Lu,Zhoulyu Rao,Yang Liu,Nicholas Dias,Arturo Haces‐Garcia,Weihang Zhu,Yingchun Zhang,Cunjiang Yu
出处
期刊:PNAS nexus
[Oxford University Press]
日期:2023-01-01
卷期号:2 (1)
被引量:5
标识
DOI:10.1093/pnasnexus/pgac291
摘要
Abstract Accurate anatomical matching for patient-specific electromyographic (EMG) mapping is crucial yet technically challenging in various medical disciplines. The fixed electrode construction of multielectrode arrays (MEAs) makes it nearly impossible to match an individual's unique muscle anatomy. This mismatch between the MEAs and target muscles leads to missing relevant muscle activity, highly redundant data, complicated electrode placement optimization, and inaccuracies in classification algorithms. Here, we present customizable and reconfigurable drawn-on-skin (DoS) MEAs as the first demonstration of high-density EMG mapping from in situ-fabricated electrodes with tunable configurations adapted to subject-specific muscle anatomy. The DoS MEAs show uniform electrical properties and can map EMG activity with high fidelity under skin deformation-induced motion, which stems from the unique and robust skin-electrode interface. They can be used to localize innervation zones (IZs), detect motor unit propagation, and capture EMG signals with consistent quality during large muscle movements. Reconfiguring the electrode arrangement of DoS MEAs to match and extend the coverage of the forearm flexors enables localization of the muscle activity and prevents missed information such as IZs. In addition, DoS MEAs customized to the specific anatomy of subjects produce highly informative data, leading to accurate finger gesture detection and prosthetic control compared with conventional technology.
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