双源ct双能量扫描对胃癌浆膜面浸润的临床分析

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1、邻近浆膜面的区域碘剂含量，可以作为判定浆膜面是否受侵的一个指标。关键词胃癌；浆膜面；T分期；双能量CT3·英文论著摘要·EvaluationofDualEnergycomputertomographyintheStudyofLocalSerosalInvasionofGastricCarcinomaobiectiveⅢsstudytakeadvantageofDualEnergycomputertomography(DECT)，topayallimportantattentiononshowingDECTenhancedcharacterandscrOllScoatchangeofga

2、striccarcinomatodetectitsvalueofdiagnosingserouscoatinvadedgastriccarcinoma．Materiaiandmethods52patients、航tllgastriccarcinomasprovedbygastroscopyandpathologywerestudied,inwhich50caseswereadvancedgastriccarcinom嬲．28patientsweremale24female．Theagesrangewerefrom36to78years．Theexaminationswereperfor

3、medonaSIEMENSDualEnergyscanner．EnhancedCTscanning嗽Onipaccontrastmedia(300mgl／m1)lOOml，whose喇ectingrateis2．5-3ml／s．Afterinjecting，wemadescanningseparatelyin60secondsand120seconds，whichisnamedvenousphaseanddelayphase．Rawdatawerereconstructedbylmmsliceandwereobserved．Allthedamsweretransferredtothem

4、odifiedprototypeoftheliverVNCapplicationofDualEnergyonadedicatedresearchMultiModalityWorkplaceworkstation,iodineenhancedimageswerecalculatedfromtheenhancedscandata．Allimageswereblindlyobservedbytwoprofessors．Contentsobservedarcasfollows：(1)whetherthelayersofgastricwalltheneoplasmslocatedisexist,

5、(2)whetherthelocalserouscoatiSlubricate、whetherthereareBlumer’Sshelfonthebrimoftheneopalsm，(3)thechangesofadjacentfatspaces、whetherdisappeared，(4)theenhancedeffectsoftheneoplasms，(5)maketheCT-T-Stageforallimages，andcompared谢tllpathologicalT-Stage，(6)calculatetheiodinecontentontheserouscoatofthen

6、eoplasms．4Results1．ImagecharactersofMvancedgastriccancer’Slocalserousanditsrelationship、杭nllocalserousinfiltrated．AccordingtovenosusphaseofenhanceCTin50cases，imagesshowasfollows：48caseslayersofgastricwallhaddisappeared；32caseshadroughserousand8c思seshadBlumer’Sshelf；18caseshadroughfatspaceand18ca

7、sesfatspacehaddisappeared．111eserousinfiltrateddetectionratesarealldifferent．nesensitivity,specificityandaccuracyofthedisappearedlayerstojudgethescrOLlSinfiltratedseparately100％，19．05％，67．31％．Thesensitivity,specificityandacc