| 三维颅内血肿动态成像 |
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| 引用本文： | 徐管鑫,何为.三维颅内血肿动态成像[J].重庆大学学报(自然科学版),2004,27(3):81-84. |
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| 作者姓名： | 徐管鑫 何为 |
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| 作者单位： | 重庆大学,电气工程学院,重庆,400030;重庆大学,电气工程学院,重庆,400030 |
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| 基金项目： | 国家自然科学基金
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教育部重点实验室基金 |
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| 摘 要： | 基于电流场"异物扰动"成像方法,在三维球模型上对颅内血肿动态成像进行了仿真研究.研究了颅内血肿体积大小的改变对头颅表面电位改变的规律,还研究了导电性能差的颅骨的存在对头颅表面电位改变规律的影响.研究结果表明:从头颅表面两个不同的位置注入电流后,从头颅表面电位的变化规律可以反映出颅内血肿体积大小的改变情况,而且电流可以穿透颅骨.这将有助于医务人员根据头颅表面边界电位的变化情况来推测颅内血肿的变化情况.
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| 关 键 词： | 血肿 成像 边界元法 |
| 文章编号： | 1000-582X(2004)03-0081-04 |
| 修稿时间： | 2003年11月9日 |
Dynamic Imaging for 3 - D Brain Hematoma |
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| XU Guan-xin,HE Wei.Dynamic Imaging for 3 - D Brain Hematoma[J].Journal of Chongqing University(Natural Science Edition),2004,27(3):81-84. |
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| Authors: | XU Guan-xin HE Wei |
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| Abstract: | Based on disturbance method of electrical current field, numerical calculation about dynamic imaging for brain hematomas have been studied on a 3 - D sphere model. With current injected, we have found the law of the brain boundary potentials'change while the volume of brain hematoma changed. Some studies about the effect of brain skull with poor electrical conductivity to the brain boundary potentials. The results show that we can know the change of brain hematomas in terms of the measurement for the change of boundary potentials. The injected current can penetrate through the skull. These results are valuable to help doctor to accurately diagnose the brain hematoma and realize the noninvasive monitoring the brain hematoma. |
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| Keywords: | hematomas imaging boundary element method |
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