肿瘤热疗中组织水分汽化对温度场的影响及模拟研究

摘要

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.%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，针对水分蒸发埘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，并将二者引人模拟过程中．结果表明，热疗中近场温度模拟准确性得到了明显的提高．