三种张口器在口腔放疗中的摆位误差差异  

Oral Radiotherapy Setup Error Differences Among Three Types of Mouth-gag

作　　者：李蔺 刘首鹏 邓中华 李鑫[2,4] LI Lin;LIU Shoupeng;DENG Zhonghua(Hejiang People's Hospital,Luzhou,646200)

机构地区：[1]四川省泸州市合江县人民医院,646200 [2]四川大学华西医院,610000 [3]四川省成都市第五人民医院,610000 [4]成都理工大学核技术与自动化工程学院,610059

出　　处：《实用癌症杂志》2024年第12期2038-2042,2051,共6页The Practical Journal of Cancer

摘　　要：目的对比3种张口器在头颈部肿瘤放疗中的摆位误差差异。方法回顾性分析2022年1月至12月行放射治疗的头颈部肿瘤患者(51例)的摆位误差,根据放疗时所配戴的张口器类型将患者分为3组(3D、支架、木塞),使用CBCT图像引导技术记录摆位误差(Tx、Ty、Tz、Rx、Ry、Rz),通过摆位误差均值、标准差方差分析和极值分布情况对比3组摆位误差差异。结果3组摆位误差均值差异不具有统计学意义(P>0.05);3组标准差差异仅在Rx方向上有统计学差异(P<0.05),且3D组标准差小于木塞组和支架组;极值统计结果表明支架组平移摆位误差极值频率在Ty和Tz方向上超过了20%,均显著高于3D组和木塞组。结论根据Rx方向的标准差差异和各组间极值频率统计结果,3D组和木塞组摆位误差均优于支架组。Objective To compare the setup error differences among three types of mouth-gag used in head and neck cancer radiotherapy.Methods Retrospective analyzed the setup error of 51 head and neck cancer radiotherapy patients,the patients was classified into 3 groups(3D,stent,wooden)according to the mouth-gag types,the set up error(Tx、Ty、Tz、Rx、Ry、Rz)was recorded by the CBCT image guided technology,the comparison of the setup error differences among the 3 groups was accomplished through the analysis of variance of setup error mean and standard error,and extreme value distribution situation.Results The setup mean error differences among 3 groups had no statistical significance(P>0.05);the standard error differences among the 3 groups was only significantly different(P<0.05)along the Rx direction,and the standard error of 3D group was smaller than stent and wooden groups,respectively;The extreme value statistic results showed that the extreme value frequency of stent group setup error along the Tyand Tz direction was over 20%,respectively,and was significantly bigger than 3D and wooden groups.Conclusion The setup error of 3D and wooden group is good than stent group with respect to standard deviation difference along the Rx direction and extreme value frequency statistical results.

关 键 词：头颈部肿瘤 放射治疗 张口器 摆位误差 

分 类 号：R739.91[医药卫生—肿瘤]