胃食道连接部癌的mdct评价

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1、星旦壅堂堡±堂些堡塞血。对于LGA显示，MPR与VR互补，且优于CPR：对于膈动脉细小分支显示，MPR优于VR及CPR。【关键词】：胃食管连接部癌，GEJ，MDCT，分型，TNM分期，肿瘤血供，MPR，CPR．VR【中图分类号】R445复旦大学硬士学位论文AbstractPart0ne：ThestudyofCTmanifestationsofthenormalgastroesophagealjunctionObjective：TodiscusstheMDCTmanifestationsandthicknessoft

2、hellOnTlaIgastroesophagealjunctionbymeasuringandobservingtheloweresophagus，GEJ，andstomachfunduswithMDCTztr,ditsreformatedleehmquesMaterialsandMethods：Twen竹normalvolunteersagedfrom37to70underwent64．slicespiralCTfromMay2009toMarch20101hcvolunteerswerereceivedmus

3、cleinjectionof654·2(20--40mg)beforeCTscanning，thendrankwaterof1000miorally,100mllotusrootstarchand100mIofwatersuccessivelyforcontrollingthevermieularmotionofstomachA】】scatlswereobtainedwith64一slicespiralCT(GELightspeedVCT64)Imageacquisitionandreconstructionpar

4、ameters白rCTsc0AlltarwasasfoIlows：tubevoltageofl20KVtubecurrentofl00mA．sectionthicknessof64x9625nma,perrotationtimesofg35samiFOVof370400nnnimagesofMPRandCPRwereobtainedbvusingImmslicethicknessA¨volunteersunderwentcontrast—enhancedCTscanningwith90mIvolcontrastme

5、diumadministeredintravenouslyandatarateof3ml／secThearterialphasescanningperformedin30saRerinjectionandtheportalvenousphasesin60s．delayedphasesin2minThenthethicknessofloweresophagus，GEJ，stomachfunduswasmeasured，themeanandstandarddeviationwerecalculatedaswellRes

6、ults：ThethicknessoftbeloweresonhagusGEJandstomachthduswas237±O72mm，592±04Bmm·3．01±069ramrespectivelyConclusion：MDCTwithitsreformatedtechniquescallrevealthemanifestationsofGEJcombinedwithcoronalandobliquesagittalview．ThethicknessofGEJcallbemeasuredaccumtelysoas

7、tolayafoundationfordiagnosisofcarcinomaofGEJThegoodpreparationof[owertensionismoreusefultoobservethestractureofGEJTheleftphrenicangleisalmostoffthesamehorizonofZ—lineofGEJ4复咀人学硕士学位论文PartTwo：ThevalueofMDCTinclassificationandpreoperativeTNMstagingofGEJcarcinomaO

8、bjective：ToevaluatethevalueofpreoperativeTNMstagingandclassificationwithMDCTanditsrerormatedtechniquesAndprovideimportantinformationtothetreaOnentaswellMaterialsandMethods：Thedatao