新型头模型EIT实验装置的设计及应用  

Design and Application of New Head Phantom EIT Experimental Device

作　　者：杨润楠[1] 尹继云[1] 段峰[1] 史学涛[2] 董秀珍[2] 魏洁然[1] 李文静[1] 靳红军[1] 万轲[1] 

机构地区：[1]武警河南总队医院,郑州450052 [2]第四军医大学生物医学工程学院,西安710032

出　　处：《医疗卫生装备》2013年第4期1-3,共3页Chinese Medical Equipment Journal

基　　金：国家自然科学基金重点项目(50937005);国家自然科学基金面上项目(61071033);国家科技支撑计划项目(2012BAI19B01;2011BAI08B13)

摘　　要：目的:研制能精确定位的头模型EIT实验装置,满足进一步研究的需要。方法:安装电极和支撑颅骨物理模型的半球状结构选用有机玻璃材料,电极用银电极,支撑悬挂结构材料选用硬度较大、方便取材的钢或铜材料。结果:新型头部物理模型在精度和稳定性方面均达到了要求,能够满足进一步实验及其相关分析的需要。结论:新型头部物理模型对扰动目标的水平位置和垂直位置定位均精确到mm,能够满足进一步实验及其相关分析的需要。Objective To develop a head EIT phantom experimental device for precise localization.Methods Plexiglass material was used to make the electrode mounting assemble and semispherical support for the skull model,and steel or copper was applied to the support suspension,with the silver electrode adopted.Results The precision and stability of the new phantom could meet the requirements of further research and analysis.Conclusion The localization precision of the new head phantom is limited to 1 mm for the horizontal and vertical positions of the disturbance object,and thus the requirements of further research and analysis can be satisfied.

关 键 词：电阻抗断层成像 新型头部物理模型 颅骨模型 非均匀电导率 均匀电导率 

分 类 号：R318.6[医药卫生—生物医学工程]