摘要目的:基于Eclipse应用程序接口(ESAPI)实现Eclipse15.6版计划系统放疗计划全自动设计程序SmartPlan，并对其临床应用进行评估。方法:在临床计划中选择鼻咽癌及直肠癌各20例，使用SmartPlan联合RapidPlan进行自动计划设计并与手动计划进行剂量学参数比较。采用 Wilcoxon符号秩检验行两组间差异比较。 结果:自动计划和手动计划结果在剂量学上均能满足临床需求。鼻咽癌计划中靶区覆盖方面两组相近( P>0.05)，且自动计划在危及器官保护方面多数优于手动计划( P<0.05)。直肠癌计划中自动计划除靶区均匀性和小肠最大剂量略差于手动计划外，其余剂量学参数均优于手动计划( P<0.05)。 结论:相比手动计划，自动计划具有同等或相似的靶区覆盖，相似或更优的危及器官保护能力，且执行方式更加简单。基于ESAPI开发的SmartPlan自动计划程序具有临床可行性和有效性。

abstractsObjective:To propose an automatic planning approach for Eclipse15.6 planning system based on Eclipse scripting application programming interface (ESAPI) and evaluate its clinical application.Methods:20 patients with nasopharyngeal carcinoma and 20 cases of rectal cancer were selected in the clinical planning. The developed automatic planning script SmartPlan and RapidPlan were used for automatic planning and dosimetric parameters were compared with manual planning. The differences were compared between two groups by using Wilcoxon signed rank test. Results:The dosimetric results of automatic and manual plans could meet clinical requirements. There was no significant difference in target coverage in nasopharyngeal carcinoma planning between two groups ( P>0.05), and automatic plans were superior to manual plans in organs at risk sparing ( P<0.05). Except for the homogeneity index of PTV and the maximum dose of bowel in rectal cancer plans, the other dosimetric parameters of the automatic plans were better than those of the manual plans (all P<0.05). Conclusions:Compared with the manual plans, the automatic plans have the same or similar target coverage, similar or better protection of organs at risk, and more convenient implementation. The developed SmartPlan based on ESAPI has clinical feasibility and effectiveness.