文章详细信息 关键词： 宫颈癌;;图像引导放疗;;摆位误差;;螺旋断层放疗 [gap=830]Keywords: cervix cancer;IGRT;setup error;tomotherapy
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文章详细信息 关键词： 兆伏级锥形束CT;;摆位误差;;调强放疗;;计划靶区 [gap=1052]Keywords: MV grade cone-beam CT;set-up error;intensity-modulated radiotherapy;planning target volume
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...;校准;应急措施;摆位误差 [gap=454]yword】 laser positioning systeminstallationcalibrationemergency measureposition error ...
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野摆位误差 field placement errors ; FPES
CONCLUSIONS:Measurement and correction of interfractional setup errors before each fraction using CBCT could help to improve the precision of radiotherapy.
结论:每次治疗前通过CBCT获得分次间摆位误差并对其进行纠正对提高放射治疗精度有积极意义。
参考来源 - 应用锥形束CT分析肿瘤放疗中分次间及分次内摆位误差Conclusions:5 consecutive KV-CBCT imaging days are sufficient to predict symstematic errors of nasopharyngeal cancer patients. Off-line correct the predicted symstematic errors reduce set-up errors and dosimetric effect of set-up uncertainty in IMRT.
结论:连续5日的KV-CBCT扫描能有效预测鼻咽癌患者系统误差,进一步的离线校位能明显减少此后的摆位误差及其对IMRT剂量分布的影响。
参考来源 - 千伏级锥形束断层扫描离线校位在鼻咽癌调强适形放疗中的初步应用·2,447,543篇论文数据，部分数据来源于NoteExpress
结论鼻咽癌imrt具有一定程度的摆位误差。
Conclusion There exists some extent of setup error in nasopharyngeal carcinoma IMRT.
结论锥束CT扫描在线校正能够缩小摆位误差。
Conclusion the cone beam ct and on-line correction could reduce the setup error.
目的探讨锥形束CT用于调强放疗分次间摆位误差测量。
Objective: This work was to analyze the set-up errors in image guided IMRT for tumors using the cone-beam computed tomography (CBCT).
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