赵家成, 段诗苗, 李多杰. 改良体膜在胸部肿瘤适形放疗中的应用[J]. 蚌埠医学院学报, 2012, 36(6): 647-649.
    引用本文: 赵家成, 段诗苗, 李多杰. 改良体膜在胸部肿瘤适形放疗中的应用[J]. 蚌埠医学院学报, 2012, 36(6): 647-649.
    ZHAO Jia-cheng, DUAN Shi-miao, LI Duo-jie. Application of the modified phantom in conformal radiotherapy of thoracic cancer[J]. Journal of Bengbu Medical College, 2012, 36(6): 647-649.
    Citation: ZHAO Jia-cheng, DUAN Shi-miao, LI Duo-jie. Application of the modified phantom in conformal radiotherapy of thoracic cancer[J]. Journal of Bengbu Medical College, 2012, 36(6): 647-649.

    改良体膜在胸部肿瘤适形放疗中的应用

    Application of the modified phantom in conformal radiotherapy of thoracic cancer

    • 摘要: 目的:通过对胸部肿瘤放疗体膜固定方法的改进,进一步提高胸部肿瘤放疗摆位精度。方法:将20例胸部肿瘤患者随机均分为2组,即常规体膜固定(常规组,不开窗)和改良体膜固定(改良组,开窗),对两种不同标记的摆位精度进行比较。结果:在Y轴上偏离值从第1周开始到第4周改良组均小于常规组,差异有统计学意义(P0.01);而在X轴上放疗第3周开始改良组中心点偏离值均小于常规组(P0.05~P0.01);在Z轴上2组间差异均无统计学意义(P0.05)。结论:改良体膜固定方法在Y、X轴上可提高放疗摆位精度,为体膜的合理使用提供依据。

       

      Abstract: Objective:To improve the positioning accuracy of radiotherapy by improving the phantom fixation in radiotherapy of thoracic cancer.Methods:Twenty casess with thoracic cancer were randomly divided into conventional fixation group(without window) and mdoifed phantom fixation group(window),the setup accuracy of marked method of two groups were compared.Results:The average position error of Y-axis and X-axis of mdoifed phantom fixation group was significantly less than that of conventional fixation group from 1 to 4 weeks(P0.01) and the third week of radiotherapy respectively(P0.05-P0.01),and the data of Z-axis had no statistically significant difference(P0.05).Conclusions:The modified phantom fixation method can significantly improve the positioning accuracy of radiotherapy,which can provide the basis of rational use of phantom.

       

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