Accurately controlling resistivity of 3D printing materials for establishing human-head volume conductor model

VernacularTitle:用于颅脑容积导体模型构建的3D打印材料的电阻率调控方法研究
Author: Meng DAI ¹ ; Jie ZHANG ; Can-Hua XU ; Jun-Ying XIA ; Bin YANG ; Rui-Gang LIU ; Xue-Tao SHI ; Xiu-Zhen DONG ; Feng FU
Author Information

1. 空军军医大学军事生物医学工程学系
Keywords: 3D printing materials; resistivity controlling; volume conductor model; skull; brain parenchyma
From: Chinese Medical Equipment Journal 2018;39(4):20-23,29
CountryChina
Language:Chinese
Abstract: Objective To propose a method for accurately controlling the resistivity of 3D printing materials to facilitate to establish a human-head volume conductor model.Methods Two kinds of ABS/CB composite conductive printing materials covering the resistivity ranges of parenchymal and skull were selected through resistivity measurement and analysis. The correlation between the proportions and resistivities of the two kinds of ABS/CB materials and the empirical formula on the correlation between the resistivity and proportion was obtained through exponential function fitting. Results The selected ABS/CB composite material behaved well in frequency stability and time stability,and the obtained empirical formula had high-correlation coefficient.Conclusion Accurate control of 3D printing model resistivity is realized,and it's facilitated to gain 3D printing material with the same resistivity as those of skull and parenchymal.