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鼻咽癌的放射线治疗?

来源:华人健康网 | 发布时间:2011-08-22 13:47:45 | www.chinesejk.com
放射线治疗的首先步骤是定位,我们将为您特制合乎头型的枕头,并加上
网状的面具来固定头颈部,使头颈部位不动,以後才能使七周的放射治疗照到相同的地方。在定位时,我们会在病人的面具上划上激光水平线及治疗的中心点及量程,定位照相後需到计算机断层室做患部的治疗用计算机断层摄影。上述的定位步骤大约要花上两个小时的时间,再把「计算机断层摄影」像传回计算机治疗计划工作站内,医师将配合原先诊断时的头颈部核磁共振,画出肿瘤的大小及可能侵犯的淋巴区,再设计出治疗的照野,後由模型室制作适合您病灶的铅块,用来阻挡不必要的放射线,以保持正常组织不被照射到,铅块完成後要再经证实片的过程来确定所设计的铅块无误才能开始放射线治疗,放射治疗後每周要照射证实片一张来确保治疗位置是否正确无误。

(编辑:阳阳 )

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