目的最大程度地降低乳腺癌保乳术后调强放射治疗摆位的误差。方法对3年多来收治的500余例乳腺癌患者进行调强治疗摆位的回顾性分析总结。结果50%的患者有不同程度的血象降低,但不影响治疗。约80%的患者有皮肤反应。结论降低摆位过程中的人为误差,提高摆位精度,从而确保治疗计划的准确实施。 Objective To minimize the error of intensity-modulated radiation therapy after breast-conserving surgery. Methods Retrospective analysis of more than 500 cases of breast cancer patients who had received IMRT in more than three years was retrospectively analyzed. Results 50% of patients have varying degrees of blood loss, but does not affect the treatment. About 80% of patients have skin reactions. Conclusion Reducing the human error during the setting process and improving the positioning precision, so as to ensure the accurate implementation of the treatment plan.