放射治疗的QA与QC

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RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENT钴-60治疗机HBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENT钴-60治疗机HBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENT医用电子加速器HBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENT不同厂家生产的加速器的主要区别HBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENT电子直线加速器的加速原理t1 t2HBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENT电子直线加速器的加速原理HBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENT偏转系统HBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENT定位及固定设备HBCH RADIOTHERAPY DEPARTMENTHBCH 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DEPARTMENT咨询、登记咨询、登记：保存病人资料初步计划设计：初步计划设计：确定治疗方针，选择治疗技术定位：定位：选择相应的定位技术并拍片（电子束放疗略）模型制作：模型制作：补偿器、X线或电子束挡铅、MLC等计划验证：计划验证：治疗机参数、放疗模型、MLC等的验证剂量计算剂量计算：物理剂量及参考BED的计算治疗：治疗：执行首次放疗并对计划进行最终验证、复核计划修改HBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENT等中心（定位）标记的预设置HBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENT摆位标记的设置HBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENT HBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENT HBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH 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疗疗计划修改CT（MRI）扫描）扫描轮廓及剂量限值确定轮廓及剂量限值确定辅件设计与制作辅件设计与制作模拟机定位模拟机定位照射野确定照射野确定剂量计算剂量计算计划验证计划验证辅件设计与制作辅件设计与制作咨询、登记咨询、登记：使病人了解放疗的原理、过程和基本费用情况，按要求详细登记病人的基本情况计划设计：计划设计：根据病人的具体情况，确定治疗方针，选择治疗机、治疗技术定位：定位：选择相应的定位技术并拍片（电子束放疗略）模型制作：模型制作：补偿器、X线或电子束挡铅、MLP等计划验证：计划验证：治疗机参数、放疗模型、MLP等的验证剂量计算剂量计算：物理剂量及参考BED的计算治疗：治疗：医生与（物理师）技术员共同执行首次放疗计划并对计划进行验证、复核计划修改体位固定：体位固定：根据病人情况，选择固定技术CT扫描：扫描：获取病人图象资料病人病人CT图象资料输入计算机：图象资料输入计算机：病人外轮廓的确定、组织不均匀性校正、GTV、CTV、PTV及OAR的确定。治疗计划设计：治疗计划设计：照射技术、射线种类、射野形状、尺寸、权重、等中心点、剂量归一方式等的设计；剂量分布优化、DVH图分析、参考BED计算等治疗计划数据输出：治疗计划数据输出：用于存档、模型制作及治疗模型制作：模型制作：补偿器、X线或电子束挡铅、MLP等计划验证：计划验证：治疗机参数、放疗模型、MLP的验证治疗：治疗：医生与（物理师）技术员共同执行首次放疗计划并对计划进行验证、复核计划修改体位固定：体位固定：选择精确固定技术，模拟机下动态观察靶区及器官移动情况以决定是否采用脏器固定措施。CT（MRI/PET）扫描：）扫描：获取病人图象资料病人图象资料（病人图象资料（CT、MRI等）输入计算机：等）输入计算机：病人外轮廓的确定、组织不均匀性校正、GTV、CTV、PTV及OAR的确定，必要时采用图象融合技术。治疗计划设计：治疗计划设计：照射技术、射线种类、射野形状、尺寸、权重、等中心点、剂量归一方式等的设计；剂量分布优化、DVH图分析、参考BED计算，等中心坐标的确认与验证等治疗计划数据输出：治疗计划数据输出：用于存档、模型制作及治疗模型制作：模型制作：补偿器、X线或电子束挡铅、MLP等计划验证：计划验证：治疗机参数、放疗模型、MLP的验证治疗：治疗：医生与（物理师）技术员共同执行首次放疗计划并对计划进行验证、复核计划修改HBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENT一些问题HBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENTHBCH RADIOTHERAPY DEPARTMENT图像融合技术存在的问题