开端同轴探头法原理及其在人体组织介电特性测量中的应用  

Principle of the Open-ended Coaxial Probe Method and Its Application in the Measurement of the Dielectric Properties of Human Tissues

作　　者：邓官华 蓝茂英 冯健[2] 段松[1] 张洒[1] 胡灿[1] 王佳佳[1] 王卫卫[3] 韩继钧[1] 辛学刚[1] 

机构地区：[1]南方医科大学生物医学工程学院,广东广州510515 [2]华中科技大学附属同济医院放射科,湖北武汉430030 [3]南方医科大学珠江医院,广东广州510515

出　　处：《中国医疗设备》2016年第5期12-14,29,共4页China Medical Devices

基　　金：国家自然科学基金(61172034;61528102);广东省自然科学基金(2015A030313234);广东省省级科技计划项目(2015B020214006);广州市科技计划项目(2014J4100160);上海科技计划项目(15441907500)

摘　　要：本文主要介绍了两种基于开端同轴探头的人体组织介电特性测量方法,并利用开同轴探头法离体测量了在50-500 MHz范围内,人体结直肠癌及对应正常组织的介电特性,实验结果表明开端同轴探头法具有较高的检测精度,能够很好的适应人体组织介电特性的测量。本文介绍的开端同轴探头具有简单、非破坏性、可在体实时测量等多项优点,为生物组织介电特性测量的首选方法。Two methods of measurement of the dielectric properties based on open-ended coaxial probe were introduced in this paper and the dielectric properties of human colorectal tissues were measured over the frequency range of 50-500 MHz using the open-ended coaxial probe. The results indicate that the performance of this precision probe was satisfactory and can be used to measure the dielectric properties of human tissues. The open-ended coaxial probe introduced in this paper, as the preferred method of measuring dielectric properties of biological tissues, is simple, noninvasive and can be used in real-time measurement in vivo.

关 键 词：人体结直肠组织 介电特性 开端同轴探头法 

分 类 号：R318[医药卫生—生物医学工程]