Lung Ventilation Functional Monitoring Based on Electrical Impedance Tomography  

作　　者：陈晓艳 王化祥 赵波 石小累 

机构地区：[1]School of Electrical Engineering and Automation, Tianjin University [2]School of Electrical Information and Automation, Tianjin University of Science and Technology

出　　处：《Transactions of Tianjin University》2009年第1期7-12,共6页天津大学学报（英文版）

基　　金：Supported by National Natural Science Foundation of China (No.60820106002, No.60532020);Tianjin Natural Science Foundation (No.08JCYBJC03500).

摘　　要：Medically, electrical impedance tomography （EIT） is a relatively inexpensive, safe, non-invasive and portable technique compared with computerized tomography （CT） and magnetic resonance imaging （MRI）. In this paper, EIT_TJU_ II system is developed including both the data collection system and image reconstruction algo- rithm. The testing approach of the system performance, including spatial resolution and sensitivity, is described through brine tank experiments. The images of the thorax physical model verify that the system can reconstruct the interior resistivity distribution. Finally, the lung ventilation functional monitoring in vivo is realized by EIT, and the visualized images indicate that the configuration and performance of EIT_TJU_ II system are feasible and EIT is a promising technique in clinical monitoring application.Medically, electrical impedance tomography (EIT) is a relatively inexpensive, safe, non-invasive and portable technique compared with computerized tomography (CT) and magnetic resonance imaging (MRI). In this paper, EIT_TJU_Ⅱ system is developed including both the data collection system and image reconstruction algo-rithm. The testing approach of the system performance, including spatial resolution and sensitivity, is described through brine tank experiments. The images of the thorax physical model verify that the system can reconstruct the interior resistivity distribution. Finally, the lung ventilation functional monitoring in vivo is realized by EIT, and the visualized images indicate that the configuration and performance of EIT_TJU_ Ⅱsystem are feasible and EIT is a promising technique in clinical monitoring application.

关 键 词：electrical impedance tomography （EIT） lung ventilation image reconstruction spatial resolution sensitivity 

分 类 号：R310[医药卫生—基础医学]