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电阻抗断层成像脑出血模型的仿真研究
引用本文:倪安胜,杨国胜,董秀珍,付峰,朱新亚. 电阻抗断层成像脑出血模型的仿真研究[J]. 医疗卫生装备, 2006, 27(8): 4-5
作者姓名:倪安胜  杨国胜  董秀珍  付峰  朱新亚
作者单位:第四军医大学生物医学工程系,西安市,710032
摘    要:目的:建立脑出血有限元模型,对其进行电阻抗断层成像仿真研究.方法:基于4层同心圆头模型,利用有限元方法和动态NOSER算法重构成像.结果:单病灶脑出血模型的病灶能够被准确重构呈现,而多病灶模型中邻近病灶间的边界重构较为模糊.结论:动态NOSER算法是一种有效检测脑出血的电阻抗断层成像方法.

关 键 词:电阻抗断层成像  脑出血  仿真
文章编号:1003-8868(2006)08-0004-02
收稿时间:2006-02-24
修稿时间:2006-07-25

Simulation study based on models of cerebral hemorrhage in electrical impedance tomography
NI An-sheng,YANG Guo-sheng,DONG Xiu-zhen,FU Feng,ZHU Xin-ya. Simulation study based on models of cerebral hemorrhage in electrical impedance tomography[J]. Chinese Medical Equipment Journal, 2006, 27(8): 4-5
Authors:NI An-sheng  YANG Guo-sheng  DONG Xiu-zhen  FU Feng  ZHU Xin-ya
Abstract:Objective To build finite-element models of cerebral hemorrhage on which a simulation study of electrical impedance tomography(EIT) is based.Method With a kind of four-layer concentric circle model of head,finite-element method and dynamic NOSER algorithm are performed to reconstruct the images.Result As to the single-focus model of the cerebral hemorrhage,the focus can be clearly imaged,while to the several-focus model,the focuses can be imaged with vaguely adjacent boundaries.Conclusion The dynamic NOSER algorithm is an effective method to image cerebral hemorrhage in EIT.
Keywords:electrical impedance tomography   cerebral hemorrhage   simulation
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