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1、#372#王霞,等食管癌放射治疗设定照射野范围的分析研究×临床应用Ø食管癌放射治疗设定照射野范围的分析研究12王霞,高献书1.河北医科大学附属第一医院放疗科,河北石家庄0500312.河北医科大学附属第四医院放疗科,河北石家庄050011AnalysisoftheradiationfieldsinradiotherapyforesophagealcarcinomaWANGXia1,GAOXian-shu21.DepartmentofRadiotherapy,No.1AffiliatedHospitalofHebeiMedicalUnivercity,Shijiazhuang050
2、031,P.R.China2.DepartmentofRadiotherapy,FouthAffiliatedHospitalofHibeiMedicalUniversity,Shijiazhuang050011,P.R.China【摘要】目的:分析照射野与预后的关系,[ABSTRACT]OBJECTIVE:Todesignsuitableradiationfieldsfore-为模拟定位时更好地确定照射范围提供参sophagealcarcinomaforthepatientstreatedbylatecourseacceleratedhy-考。方法:回顾分析2000年4月~20
3、01年perfractionationradiotherapyandanalysetherelationshipbetweenradia-4月在河北医科大学第四医院放疗科进行tionfieldsandprognosis.METHODS:FromApril,2000toApril,2001,后程加速超分割放疗的符合入组条件的食102patientswereselectedaccorddingtothequalification,whoweretrea-管癌患者102例,计算常规设野时野长和野tedbylatecourseacceleratehyperfractionationrad
4、iotherapyschedule.宽外扩的范围,分析与生存率的关系。结Therelationshipbetweentheradiationfieldsandtheoverallsurvivalrates果:常规模拟定位设野长度外扩的范围按照wasanalysed.RESULTS:Thepatientsweredividedintotwogroupsac-中位值分为[412cm和>412cm两组,[cordingtomedianlength412cm.One-yearsurvivalratesin[412cm412cm组1、2、3和4年生存率分别为group,and>412cmg
5、roupwere7610%,6910%,2-yearsurvivalrates7610%、5010%、2813%和2112%;>412cmwere5010%,5514%,3-yearsurvivalrateswere2813%,4812%,组分别为6910%、5514%、4812%和4-yearsurvivalrateswere2112%,3810%,Therewasnosignificant3810%。两组总体生存率差异无统计学意2diffenceinthetwogroups,V=2115,P=0114.Thepatientswere2义,V=2115,P=0114。设野宽度外
6、扩的范dividedintotwogroupsaccordingtomedianwidth118cm.One-year围按照中位值分为[118cm和>118cm两survivalratesin[118cmgroup,and>118cmgroupwere6410%,组,[118cm组1、2、3和4年生存率为7619%,2-yearsurvivalrateswere4610%,5319%,3-yearsurvival6410%、4610%、3610%和2913%;>118cmrateswere3610%,4213%,4-yearsurvivalrateswere2913%,组为761
7、9%、5319%、4213%和3115%。两3115%.Therewasnosignificantdifferenceinthetwogroups,V2=组总体生存率差异无统计学意义,V2=0162,P=0173.CONCLUSIONS:Overallsurvivalrateswerecompared0162,P=0173。结论:设野长度外扩的范围indifferentlengthsthattheradiationfieldscoveredbeyondthetumour对总体生存