摘要
目的:探讨食管癌患者体重减轻对放疗摆位精度的影响。方法:每周对患者称重一次,应用电子射野成像装置摄取0°、90°体位验证片,将体位验证片与数字重建图像进行匹配分析。结果:体重显著减轻者的放疗摆位误差较大。结论:食管癌患者放疗时体重减轻超过3kg必须重新定位。
Objective: To explore the effect of weight loss on radiotherapy setup precision for esophageal cancer.Methods: We collected the weight data of patient weekly,and their position checking film images( 0°,90°) were compared with their DRR images. Results: The patients with more weight loss had much more setup errors. Conclusion: Patients with weight loss more than 3kg must fix their position anew.
出处
《现代肿瘤医学》
CAS
2015年第15期2193-2194,共2页
Journal of Modern Oncology
关键词
体重减轻
食管癌
摆位精度
weight loss
esophageal cancer
setup precision