电阻抗成像技术在肺功能检测的研究进展  

Research Progress of Electrical Impedance Tomography

作　　者：李志伟 于瑶 吴阳 段冀州 刘凯[1] 姚佳烽 LI Zhiwei;YU Yao;WU Yang;DUAN Jizhou;LIU Kai;YAO Jiafeng(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics Astronautics,Nanjing 210016,China;Nanjing Normal University of Special Education,Nanjing 210038,China)

机构地区：[1]南京航空航天大学机电学院,江苏南京210016 [2]南京特殊教育师范学院,江苏南京210038

出　　处：《机械制造与自动化》2024年第1期1-9,共9页Machine Building & Automation

基　　金：国家自然科学基金面上项目(62271251);科技部国家重点研发计划项目(2022YFC2404800)。

摘　　要：电阻抗成像技术(EIT)通过对电极施加安全的交流激励电流信号,测量其余电极对的电压信号,借助重构图像算法,利用采集到的电压数据重构肺部阻抗分布情况。EIT技术具有实时、无创、便携的特点,能够动态监测肺部功能,有利于辅助肺疾病的诊断和治疗。概括了肺功能EIT技术的发展历程与原理,并对EIT硬件系统、图像重建算法和临床应用的研究进展进行了总结和分析;对肺功能EIT技术发展方向和趋势进行探讨与展望。Electrical mpedance tomography(EIT)measures the voltage signals of the remaining electrode pairs by applying a safe AC excitation current signal to the electrodes.With the help of reconstruction image algorithms,the acquired voltage data are applied to reconstruct the impedance distribution of the lungs.The EIT technique is real-time,non-invasive,and portable,and able to monitor lung function dynamically,which is beneficial in assisting in the diagnosis and treatment of lung diseases.This paper summarizes the development history and principle of lung function EIT technology,generalizes and analyzes the research progress of the EIT hardware system,image reconstruction algorithm and clinical application,and discusses and prospects the development direction and trend of the technology as well.

关 键 词：电阻抗成像 硬件系统 图像重建算法 临床应用 发展趋势 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]