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目的 利用微机计算肿瘤外照射任意照射野的预置剂量 ,减少临床剂量计算误差 ,保证放射治疗质量 ,实现预置剂量的微机化。方法 采用 QBASIC语言编程 ,把算量中的各个参数设入 ,并输入已测的 TMR、FF、Fw、Ft的值 ,产生可运行的算量模式 ,把微机与手工计算的结果进行对照。结果 微机算量精度提高 ,效率提高 5倍 (规则野 )及 7.5倍(不规则野 )。结论 微机算量优于传统手术计算 ,特别是不规则照射野
Objective To calculate the preset dose of arbitrary radiation field by using computer to reduce the error of clinical dose calculation and ensure the quality of radiation therapy and realize the computerization of preset dose. Methods QBASIC language programming, the calculation of the parameters into the set, and enter the measured value of TMR, FF, Fw, Ft, resulting in a running calculation mode, the computer and manual calculation of the results were compared. As a result, the accuracy of computerized counting was improved, the efficiency was improved by 5 times (regular field) and 7.5 times (irregular field). Conclusion Microcomputer calculation is superior to traditional surgical calculation, especially irregular irradiation field