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肺癌锥形束CT图像引导放疗联合在线配准方式的内靶区外放研究

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摘要 目的:研究肺癌锥形束CT图像引导放疗联合在线配准方式的内靶区外放边界。方法:选取24例肺癌患者,应用医科达Synergy加速器行CBCT扫描,将获取的CBCT图像与计划CT图像配准,得到患者放疗时三维方向上的平移摆位误差和旋转误差,XVI系统配合治疗床进行在线校正,并计算内靶区外放边界值。结果:校正前后左右、头脚、前后方向的外放值分别为4.5mm、7.4mm、3.2mm和1.9mm、1.6mm、1.0mm。结论:肺癌患者采用CBCT下图像引导放疗可显著缩小ITV外放范围,提高放疗精度。
机构地区 浙江省肿瘤医院
出处 《中国高等医学教育》 2014年第6期114-115,共2页 China Higher Medical Education
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参考文献4

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