论文部分内容阅读
目的 :探讨计算机模拟超声引导下植入式微波辐射热场在离体猪肝中的可行性。材料和方法 :对临床常用的能量输出条件下微波热凝固的范围和温度分布进行了计算机模拟和检测。通过实验得到了离体猪肝的模拟参数 ,建立了离体猪肝的计算机模拟热场图 ;在 2 6个猪肝上进行了 496个点次的测温以验证模拟热场的准确性。结果 :微波辐射时离体猪肝温升曲线与计算机模拟温度曲线有很好的一致性的占 88.91% ,猪肝凝固边界温度与计算机模拟的 5 4℃所对应的边界有较好的吻合性。结论 :用计算机模拟离体猪肝微波热场是准确的 ,该方法的确立为计算机模拟活体组织的研究奠定了基础
Objective: To investigate the feasibility of ultrasound-guided ultrasound-guided implanting microwave radiation thermal field in isolated porcine liver. MATERIALS AND METHODS: The computer simulation and detection of the range and temperature distribution of microwave thermocoagulation under the condition of commonly used energy output were carried out. The simulation parameters of ex-vivo porcine liver were obtained by experiment, and the computer simulated heat field map of ex-vivo porcine liver was established. The temperature of 496 spots was measured on 26 piglets to verify the accuracy of simulated thermal field. Results: There was a good agreement between the curve of exogenous liver temperature and the simulated temperature curve of 88.91% at microwave irradiation. The boundary temperature of porcine liver solidified was in good agreement with the simulated boundary of 54 ℃ . Conclusion: It is accurate to simulate microwave heat field of ex-vivo porcine liver by computer. The establishment of this method lays the foundation for the study of computer simulation of living tissue