Novel human-head phantom with realistic skull anatomy and resistivity distribution
10.7687/j.issn1003-8868.2018.04.015
- VernacularTitle:具有真实颅骨分层解剖结构与电阻率分布的电阻抗成像头部物理模型构建
- Author:
Ning YANG
1
;
Jie ZHANG
;
Meng DAI
;
Can-Hua XU
;
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;
resistivity heterogeneity;
human skull;
electrical impedance tomography;
volume conductor physi-cal phantom
- From:
Chinese Medical Equipment Journal
2018;39(4):15-19
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish a human-head phantom with realistic skull anatomy and resistivity distribution in order to provide an accurate experimental platform for brain electrical impedance tomography(EIT).Methods Firstly a skull model with 3-layer structure was constructed with double-nozzle 3D printer,and every layer had its specific resistivity verified on the accuracy. Then brain parenchyma with its resistivity was modelled using 3D printer and cerebrospinal fluid and scalp were mimicked using NaCl solution;after the whole phantom was assembled,imaging test using EIT was performed.Results The skull model was similar to the realistic one in terms of anatomy and resistivity distribution;the EIT experiment on the new phantom showed similar results to simulation.Conclusion The proposed phantom has realistic skull anatomy,resistivity distribution and multi-layer anatomical structure, which reflects the features of skull resistivity and thus is suitable for experiments on brain EIT.
