肺动脉栓塞诊断的比较影像学

:(2001BA703B15):100020(),();100037():XCT(EBCT)MR(MRPA)(PAG)(PTE)2003720043PTE25EBCTMRPAPAGPAG2,PAG100%,775556(71.7%)25X129,21,18500247(52.0%),PAG64.66%EBCT(EBCTPA)775523,94.06%;10MRPA8,248155(62.5%),81.29%EBCTPTE,X,EBCT,MRPA;;RadiographycomparisonofthepulmonaryembolismMAZhan-hong*,DAIRu-ping,CAOCheng,QIXiao-ou,BAIHua,WANGChen.*DepartmentofRadiology,BeijingChaoyangHospitalAffiliatedtoCapitalUniversityofMedicalSciences,Beijing100020,ChinaCorrespondingauthor:DAIRu-ping,DepartmentofRadiology,CardiovascularInstituteandFuwaiHospital,ChineseAcademyofMedicineSciences,BeijingUnionMedicineUniversity,Beijing100037,ChinaAbstractObjectiveToevaluatetheapplicationvalueofX-ray,echocardiogram,pulmonaryperfusionscintigraphy,EBCT,MagneticresonancePulmonaryangiographyindiagnosisofPTE.MethodsTwenty-fiveconsecutivepatientsclinicallydiagnosedofhavingPTEwereexaminedfromjuly2003throughMarch2004.PatientsunderwentX-raychestplainfilm,echocardiogram,electronicbeamcomputedtomographic(EBCT)angiography,ventilation-perfusion(V-P)scintigraphy,MagneticresonancePulmonaryangiography(MRPA)andpulmonaryangiographyaccordingtoastrictdiagnosticprotocol.TwooftheindependentreadersreviewedthepulmonaryangiographyandrecordallofthelobeandsegmentalinvolvedinPTEandcomparedwithotherimagemethod.ResultsPulmonaryangiography:allofthepatientssuccessunderwentthetechnique,thepulmonaryarterybranchwithPTEwasin556of775branches(71.7%).Chestradiographyhadhintsofdiagnosisin12of25patients.Ninepatientsdiagnosedwithechocardiogram.Rightheartenlargementwasin21,andpulmonaryhypertensionin18.V-Pscintigraphyrevealed247segmentalinvolvedwithPTEof500(52.0%),andthesensitivitywas64.66%comparewiththepulmonaryangiography.Therewere523pulmonarybranchesinvolvedPTEwithEBCTpulmonaryangiograpyof775branches,andthesensitivitywas94.06%.MRPA:8of10patientssucceedinthetechnique,155branchesof248weredetectedwithPTE(62.5%),thesensitivitywas81.29%.ConclusionsEBCTisahighsensitivitymethodindiagnosisofPTE.Chestradiographyandechocardiogramarethefirst-linemodalityofPTE.V-PscintigraphyisthevalidcompensationindiagnosissubsegmentalpulmonaryarterywithPTEwhenEBCTmissdiagnosis.Gd-CE-MRPAmaybethesecond-linemodalityindiagnosisofPTE.KeywordsPulmonaryembolism;Diagnosticimaging;Comparativestudy(PTE)X()CTMR(PAG),,PAGPTE,,,,CTMRI,PAGPTE20620076416ChinJRadiol,June2007,Vol41,No.6:300192();CT():,Email:[e-mail](GIST)20GIST,,,11(11/16),4CTCT5CT3GISTCT,;;,X;Gastrointestinalstromaltumors:imagingfeatureswithintraoperativeandclinicopathologicalcorrelationZHANGLong-jiang*,YANGYa-ying,QIJi,SHENWen.*DepartmentofRadiology,TianjintheFirstCentralHospital,Tianjin300192,ChinaCorrespondingauthor:QIJi,Email:[e-mail]alyzeimagingofgastrointestinalstromaltumors(GIST),andtocomparetheirimagingfeatureswithoperationalandpathologicalfindings.MethodsClinical,imaging,andpathologicaldataof20patientswithGISTwerecollected.ResultsImagingfindingswereendophyticorexophytictumorswithheterogeneousdensityorsignalintensity,correspondingtohemorrhage,necrosis,andcysticchanges.Imagingwascorrectforthelocationofthelesionin11of16primaryGISTand4casesofrelapsedtumors.PreoperationalCTdidnotdetectmesenteric,peritoneal,andomentalmetastasisin5cases.HepaticmetastasesdetectedatCT(3cases)wereidentifiedbyoperationalfindings.ConclusionsGISThassomeimagingfeatures.CTisausefultoolindetectingandcharacterizatingoflesionsratherthandetectingmesenteric,peritoneal,andomentalmetastasis.KeywordsGastrointestinalneoplasms;Mesenchymoma;Tomography,X-raycomputed;Magneticresonanceimaging(gastrointestinalstromaltumors,GIST),Kit[1],(Cajal);KitGIST[2]GIST[3-8]GIST,,1.:20036200511137GIST,9,111779,551720,16,4,147,6,2,2,1,247,422.:20CT,X7,2CTMRIXCTGELightspeed16CTPhillipsMx80004CTCT,,510mm,510mm,1.375,120kV,220mAs15CT3ml/s(300mgI/ml)100ml,2560300s,2.5mm1.25mm70620076416ChinJRadiol,June2007,Vol41,No.6:510080,();():,Email:[e-mail]6CT,CT6,2,42,;21,;1,;3.27.0cm,5.8cm,,,CT,CT;;,XCTfeaturesofpseudoaneurysmcomplicatingpancreatitisLIUZai-yi*,WANGYing,LIANGChang-hong.*DepartmentofRadiology,GuangdongProvincialPeoplesHospital,Guangzhou510080,ChinaCorrespondingauthor:LIANGChang-hong,Email:[e-mail]obeintheCTfeaturesandvaluesofCTinthediagnosisofpseudoaneurysmcomplicatingpancreatitis.MethodsToretrospectivelyanalyzetheCTimagesof6patientswithpseudoaneurysmcomplicatingpancreatitisprovedbysurgeryorDSA,emphasiswasputonthelocation,diameterandCTfeaturesofthepesudoaneurysm.ResultsTherewere2patientswithpseudoaneurysmcomplicatedwithacutepancreatitis,and4withchronicpancreatitis.Of6patients,spleenicarterywereinvolvedin2patients,andthelesionswerelocatedintheregionofbodyandtailofthepancreas,2gastroduodenalarteryand1superiorpancreaticoduodenalarterylocatedinthepancreaticheadregion,1superiormesentericarterylocatedintheregionofsmallmesentericartery.Thediameterof6lesionsrangedfrom3.27.0cmwithameandiameterof5.8cm.Allthepesudoaneurysmwereroundorovary-shaped.InplainCTimages,theselesionswerepresentedwithhomogeneousorheterogeneoushypoatte