摘要
本文设计并制作了一套工作频率为０．５ＭＨｚ的射频组织间透热治疗系统，包括功率源电路、测温电路和控温电路三大部分．用计算机实时控制方法在脑肿瘤的生物模拟材料上进行了实验，证明本系统工作正常，性能可靠．同时还利用阻抗法在ＥＬＸＳＩ６４００超级小型计算机上对该系统作了计算机模拟，为今后在病理实验和临床应用中的布针结构及其可靠性工作提供了理论依据．
This paper describes the design and producing of a compact system of RF insterstitial hyperthermia therapy, whose working frequency is 0. 5MHz. This system comprises apower source circuit, a temperature measurement circuit and a temperature controlling circuit. It was proved by the experiment on biological brain tumor-simulant material that thissystem works normally and has reliable properties. Meanwhile, the impedance method isused to compute the SAR distribution for the 3D cube model of a brain tumor, which hasprovided the theoretical basis for this system.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
1995年第4期68-76,共9页
Journal of Shanghai Jiaotong University
基金
国家自然科学基金
关键词
透热治疗
SAR分布
肿瘤治疗
计算机模拟
hyperthermia therapy, SAR distribution, temperature, needle electrode
