| 电阻抗断层成像脑出血模型的仿真研究 |
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| 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 |
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| 作者姓名： | 倪安胜 杨国胜 董秀珍 付峰 朱新亚 |
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| 作者单位： | 第四军医大学生物医学工程系,西安市,710032 |
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| 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.
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| 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 |
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| 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 |
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| Authors: | NI An-sheng YANG Guo-sheng DONG Xiu-zhen FU Feng ZHU Xin-ya |
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| 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. |
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| Keywords: | electrical impedance tomography cerebral hemorrhage simulation |
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