Non-invasive Continuous Monitoring of Cerebral Edema Using Portable Microwave Based System

2017 International Conference on Advanced Environmental Engineering

生态环境科学

Jiang, Yuhao^1 ; Zhao, Minji^2 ; Wang, Huiqian^1 ; Li, Guoquan^1

Chongqing University of Posts and Communications, Chongqing

400065, China^1

Department of Mechanical Science and Engineering, Graduate School of Engineering, Nagoya University, Nagoya

464-8603, Japan^2

关键词: Continuous monitoring;    Detecting systems;    Evaluating systems;    Human-head phantom;    Medical conditions;    Microwave signals;    Microwave technology;    Real time monitoring;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/111/1/012027/pdf
DOI  :  10.1088/1755-1315/111/1/012027

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

A portable non-invasive head detecting system based on microwave technology was developed for evaluation of cerebral edema change inside human brain. Real-time monitoring of cerebral edema in the brain helps the clinician to assess medical condition and treatment. In this work, a microwave signal was transmitted and coupled into an open-end circular waveguide sensor, incident on a 3D printed head phantom, and reflected back to receiver. Theoretically, the operation of this instrument depends on the conductivity contrast between cerebral edema and healthy brain tissues. The efficacy of the proposed detecting system is verified using 3D printed anatomically and dielectrically realistic human head phantoms with simulated cerebral edema targets with different size. Changes in the amplitude of time domain result were shown to be induced by the expansion or decrease of the edema volume. The eventual goal of this proposed head evaluating system is use in the hospital as an effective real-time monitoring tool.