乳腺托架的应用对肺受照射体积影响的分析

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1、万方数据山东大学硕上学位论义ABSTRACTBackgroundandObjectives：Breastcancerisoneofthemostcommonmalignanttumorinwomenaroundtheworld，andoneoftheimportantmeansofcomprehensivetreatmenttoitispostoperativeradiotherapywherebreastbracketiswidelyused．Theaimofthepresentstudywastoprovidereferenceforclinicalappl

2、icationonpatientswithbreastcancerwhohadgotradicalsurgerystillrequireradiotherapy，asintheprocessofradiotherapybreastbrackethadbeenusedwhichmayhadsomeimpactiononthelungirradiatedvolume．Methods：First，wecarriedouttheshootwildrangeinaccordingtotheindicationsofthepatientswiththebreastcance

3、rneedpostoperativeadjuvantradiotherapy,markedcollarboneuenoandchestwallwildrangebyscratch，tapedthehosefullingoftheMegluminediatrizoateasthescanningCTmarkmetthecoUinearboundaryofcollarboneuenoandchestwallwild，then，scanedthesamepatientsatdifferentbreastbracketAngle(0O15。)throughthewayo

4、flargeaperturesimulationCTpositioningmachinelocationatthesamerepeatedradiotherapypositionsastheX—ray,acquisitedtheCTimagedata，uploadedtheCMSplanningsystemandcalculatedthelungvolumevariationunderdifferentanglesofclavicleuenoirradiatedby6mv-X—ray，last，statisticalanalysisthedataandsumup

5、itsclinicalsignificance．Results：Position0oapexilluminatedvolume&Position15oapexilluminatedvolume，totalcapacityofthistwosamplesis13andthecorrelationcoefficientr=O．892，SO，theyarehighlyrelated，aswenowPvalue=O．000isfarlessthanthesignificancelevela=O．05thatshouldrejectthenullhypothesisand

6、acceptthistwogeneralsamplesexistsignificantdifference．Position0。apexilluminatedvolumeaverage=107．5938whilePosition15。apexilluminatedvolumeaverage2万方数据山东大学硕上学位论文182．2769，andtheposition0oapexilluminatedvolumeaveragestandarddeviationis5．77596VS15opositionapexilluminatedvolumeaveragestan

7、darddeviationis12．08175，SOwecanknowtheymustexistobviousdifferenceastheobservedposition15oapexilluminatedvolumeissignificantlygreaterthantheposition0oapexilluminatedvolume．Conclusions：ItwassignificantlydifferentbetweenPosition0oandl5olungapexilluminatedvolume．Theratioapextounilaterall

8、ungwasnotsig