基于介电特性脑血肿检测的可行性仿真研究

Feasibility Simulation Research on Detecting Cerebral Haematoma Based on Dielectric Property

为了便捷监测脑血肿及其演变,通过分析头部组织的电导率和介电常数在不同频率下的变化规律,提出了依据监测介电特性,利用电容测量原理来实现检测脑血肿的方法.根据头部结构,利用ANSYS分析软件,建立了多层脑模型,在二维场域内研究了血肿位置变化、大小变化、靠近测量电极程度等情况,验证了利用介电特性检测脑血肿理论的可行性,为进一步的研究奠定了基础.

Aimed at detecting the haematoma as well as development expediently, a capacitance measuring method detection based on dielectric property is presented through analyzing the changing regularity of the conductivity and permittivity of the head tissue at different frequency. According to the head structure, a mutli-layer brain model is built up with ANSYS analysis software. The different states of haematoma such as the position, size and the extent of approaching the measuring electrode are analyzed in two-dimension model. The feasibility of the measurement is proved, and the further research is established.