医疗卫生装备2012，Vol.33Issue(1)：65-66,2.
螺旋断层调强放疗治疗宫颈癌误差分析
Setup Error Analysis of Helical Tomotherapy for Cervix Cancer
张慧娟 1周桂霞 1徐寿平 1解传斌 1戴相昆 1鞠忠建1
作者信息
摘要
Abstract
Objective To analyze inter-fractional setup errors during helical tomotherapy for cervix cancer using daily online MVCT IGRT technique. Methods From Jan.2009 to Dec.2010, 30 cervix cancer patients were treated by helical tomotherapy. Before treatment, all patients underwent MVCT scanning. MVCT images were registered with automatic KVCT plan and used to readjust the registration according to the dose distribution. The setup errors were obtained and analyzed. Results A total of 752 online MVCT scannings were performed for these 30 patients. The setup errors on X,Y,Z directions were (1.9+1.61)mm, (5.73+1.31)mm and (0.61+1.06)mm, respectively. Conclusion Daily online pre-treatment IGRT correction can reduce inter-fractional setup errors. MVCT can improve the accuracy and precisions of cervix cancerradiotherapy treatment.[Chinese Medical Equipment Journal,2011,33(1) :65-66]关键词
宫颈癌/图像引导放疗/摆位误差/螺旋断层放疗Key words
cervix cancer/ IGRT/ setup error/ tomotherapy分类
医药卫生引用本文复制引用
张慧娟,周桂霞,徐寿平,解传斌,戴相昆,鞠忠建..螺旋断层调强放疗治疗宫颈癌误差分析[J].医疗卫生装备,2012,33(1):65-66,2.
