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目的:创建新的物理方案质量评估模型,弥补传统评估物理方案质量方法的不足.方法:采用Pinnacle和Monaco TPS分别为12例宫颈癌患者设计外照射物理方案(pV-Plan,mV-Plan),采用传统的评估方法对2种TPS设计的放疗物理方案进行比较和评估,深入探讨传统方法的不足和可能存在的风险,在此基础上创建新的物理方案质量评估模型f(TCP~NTCP),并采用文献中报道的f(EUD)模型检验其有效性.结果:传统的评估方法不能比较出pV-Plan,mV-Plan两种物理方案在整体上的优劣;采用f(TCP~NTCP)模型可以发现两种物理方案在整体上的优劣,且结果与f(EUD)比较的结果一致.结论:传统评估物理方案质量的方法存在不足,f( TCP~NTCP)模型可以作为新的物理方案质量评估模型,辅助评估物理方案质量.“,”ng this. On the basis of that, we created a new model, f(TCP~NTCP), for evaluating the quality of physical scheme, and tested its validity against the f(EUD) model reported in an article. Results:Traditional evaluation methods could not tell the difference between pV-Plan or mV-Plan. Instead, the f(TCP~NTCP) mod-el could. Those results were in accord with the results from f(EUD) model. Conclusion: The traditional method for evalua- ting the quality of physical scheme is insufficient. f( TCP ~NTCP) model can be used as a new and adjuvant model for evaluating the quality of physical scheme.