能谱ct在鉴别肾上腺腺瘤与转移瘤中的应用价值

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1、ApplicationofenergyspectrumCTindifferentiatingadrenaladenomasfrommetastasesABSTRACTObjective：111eadrenalglandisoneofthemostimportantendocrineglandinmebody'adrenaldiseaseoftenleadstoaseriesofseriousendocrinedisorders．Theadrenaladenomasandmetastasesarethemostcommoninclinic．buttheclinicaltre

2、atmentofthetwoisdifferent，therefore，thecorrectdifferentialdiagnosishasdirectguidingsignificancetotheclinicaltreatment．ThisstudyanalyzedbyenergyspectrumCTimageofadrenaladenomasfrommetastases．toexploretheapplicationofenergyspectrumUlinthe，1rn’‘differentialdiagnosisofadrenaladenomasfrommetas

3、tases，andalsoprovidescientificbasisforadrenalbenignandmalignantlesionsintheearlydiagnosisanddifferential．Methods：Retrospectiveanalysis33patientsfromMarch2012toDecember2013withadrenaldiseasesinourhospital，atotalof40adrenalnodules：including18casesofadrenaladenomapatients，atotalof20nodules(8

4、maleand10female，aged27-70years，meanage44．5years)；15caseswithadrenalmetastatictumors，atotalof20nodules(5femaleand10male，age49～85years，meanage61．3years)．Allinspectionareint11eGEDiscoveryCT750HD64slicedualenergyCTSCanSusetheenergyspectrumscanningmode(GemStoneImaging，GSI)，theadrenalareatarget

5、edSCan，includingplainanddynamicenhancedscan，dynamicenhancedscanningincludingarterialphase，portalvenousphaseanddelayedphase．Eachphasescanningsingleenergyimage(Mono)usingstandardreconstruction，layerthicknessandlayerspacingbothareO．625mm．OntheprofessionalworkstationGEAW4．4intotheGSIobservati

6、onandanalysissystem(GSIviewer)，respectively,wereobservedandmeasuredthespectrumimageineachperiodofsingleenergyimage．Placedthefocusregionofinterest(ROI)，keptbytheautomaticanalysissVstemforthedrawingofROIspectnmacurvesanddatafile，thedata英文摘要—————————————-——————————————————-—————————————————●

7、——————————————一一一filecontains40-140keV(1OkeVintervals)ofeachenergylevelofCTvalue(岫，eachpairedbasematerialconcen仃ation(mg／m1)(water-calcium，calcium。water,fat-iodineandiodine—fatandwater-iodine，iodine．waterthreepairs)andtheeffectiveatomicnumber(Effective．Z、)measuremen