基于EIM的腰肌状态对称性检测技术研究  

Research on Symmetry Detection Technology of Low Back Muscle State Based on EIM

作　　者：史婧婷 徐攀 庄源东 高跃明[1] SHI Jingting;XU Pan;ZHUANG Yuandong;GAO Yueming(College of Physics and Information Engineering,Fuzhou University,Fuzhou Fujian 350116,China;Department of Neurosurgery,Fujian Medical University Union Hospital,Fuzhou Fujian 350001,China)

机构地区：[1]福州大学物理与信息工程学院,福建福州350116 [2]福建医科大学附属协和医院神经外科,福建福州350001

出　　处：《中国医疗设备》2023年第1期30-35,共6页China Medical Devices

基　　金：国家自然科学基金促进海峡两岸科技合作联合基金(U1505251);福建省对外合作项目(2021I0005)。

摘　　要：目的通过无创的生物阻抗技术肌阻抗图(Electrical Impedance Myography,EIM)检测人体腰肌,探究其对腰肌状态对称性的检测效果。方法基于人体腰部真实生理参数,构建有限元电场模型。采用灵敏度分析法对不同电极配置下的电流密度仿真计算,获取更适用于人体腰部肌肉的EIM测量间距。开展在体实验进行验证,并将仿真结果应用于腰肌状态对称性检测实验中。结果仿真实验与在体实验结果一致性为0.95;本文提出的电极配置方式显著减小了测量时腰部脂肪厚度带来的个体差异;不对称实验结果表明,收缩侧EIM参数电阻(R)和电抗(Xc)变化更显著,R和Xc的变化拟合曲线的斜率分别为-4.15×10^(-4)和13.5×10^(-4),且R比Xc的前后变化幅度更明显,收缩侧R平均降幅约为4.15Ω。结论EIM能无创检测出腰肌不对称状态,结果具有显著性。腰肌劳损、腰痛等症状在临床上主要表现为不对称性,EIM有望成为腰部疾病的生物标记物,对腰部疾病预防与检测有重要临床意义。Objective To investigate human psoas muscle by electrical impedance myography(EIM),a non-invasive bioimpedance technique,and to explore its efect on the symmetry detection of psoas muscle.Methods The finite element electric field model is constructed based on the real physiological parameters of human low back,obtained the EIM measurement distance more suitable for human low back muscle,the sensitivity analysis method was used to simulate the current density under different electrode configurations.And in vivo experiments were carried out to verify,and the simulation results were applied to the low back muscle state symmetry detection experiment.Results The consistency between simulation experiment and the in vivo experiment was 0.95;The electrode configuration method proposed in this paper can significantly reduce the individual difference caused by waist fat thickness during measurement;The asymmetric experimental results showed that the EIM parameters resistance R and reactance Xcon the contraction side change more significantly,and the slopes of the change fitting curves of R and Xc were-4.15×10^(-4)and 13.5×10^(-4)respectively.The changes of R is more obvious than Xc,and the average decrease range of R on the systolic side was about 4.15Ω.Conclusion EIM can noninvasively detect the asymmetry of low back muscle,and the results are significant.The clinical manifestations of low back muscle strain,low back pain and other symptoms are more asymmetric.EIM is expected to be a biomarker of this disease,which has important clinical significance for the prevention and detection of waist diseases.

关 键 词：肌阻抗图 腰肌状态对称性 有限元电场模型 仿真实验 

分 类 号：R318.08[医药卫生—生物医学工程] R197.39[医药卫生—基础医学]