Open Electrical Impedance Tomography:Computer Simulation and System Realization
Electrical impedance tomography (EIT) is a noninvasive technique used to image the electrical conductivity and permittivity within a body from measurements taken on bodys surface. But the low spatial resolution of imaging, complicated operation and the asymmetrical placement of electrodes make the EIT cannot achieve the requirements of clinical application. In this paper, we proposed a novel idea of open electrical impedance tomography (OEIT) and a new type of electrode to provide more valuable distribution information of electrical impedance for local subsurface biological tissues than closed EIT. The OEIT system is constructed. The electromagnetic mathematical models of OEIT are presented and a method to solving the boundary value problem of half infinite calculating region is proposed for the computer simulations. Furthermore, we have realized the OEIT system, and completed the physics and the clinical experiments. Experiment results show that the OEIT system can obtain a better resolution and positioning accuracy, and is more suitable for clinical application.
EIT Open EIT computer simulation electrode array
Wei He Bing Li Chuanhong He Haijun Luo Zheng Xu
State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400030, China
国际会议
无锡
英文
163-170
2010-09-17（万方平台首次上网日期，不代表论文的发表时间）