肿瘤热疗中组织水分汽化对温度场的影响及模拟研究  

Study of the Effect and Simulation of Water Vaporization in Tissues on Temperature Distribution in Microwave Hyperthermia

作　　者：吴水才[1] 赵磊[1] 高宏建[1] 

机构地区：[1]北京工业大学生物医学工程中心,北京100124

出　　处：《北京工业大学学报》2011年第7期1096-1102,共7页Journal of Beijing University of Technology

基　　金：国家自然科学基金资助项目(30770547);北京市自然科学基金资助项目(3072004)

摘　　要：在肿瘤微波热疗中,为了准确地预测近场温度分布,分析了微波热疗组织的温升曲线,针对水分蒸发对温度分布造成的影响,计算了肝脏组织的焓值和高温微波能量比吸收率(specific absorption rate,SAR)的分布,并将二者引入模拟过程中.结果表明,热疗中近场温度模拟准确性得到了明显的提高.In order to improve the accur acy of near-field forecasting temperature during microwave hyperthermia, this paper analyses the rising curve of the temperature in near-field, and studies the effect of water vaporization. The enthalpy of liver issues and high-temperature SAR are calculated and introduced to simulation process. The results show that the accuracy of near-field temperature in simulation is improved.

关 键 词：微波热疗 温度场模拟 焓 

分 类 号：R318.6[医药卫生—生物医学工程]