Vol.2No.#$Oct.2$$AcademicJournalofShanghaiSecondMedicalUniversity#%&’.($2)’)%)2$$#$’$%%%’$*CT200025CTMSCTA16CTMPVRMIPVR16MSCTA972252516956.3%318.8%637.5%MSCTAXCT+732,21+814,42-DiagnosticPerformanceofMultisliceSpiralCTAngiographyforPseudoaneurysmsLINGHua-weiDINGBeiDONGHai-pengYANGYan-pingLILeiCHENKe-minDepartmentofRadiologyRuijinHospitalShanghaiSecondMedicalUniversityShanghai200025ChinaAbstract(Objective(ToevaluatethediagnosticperformanceofmultislicespiralCTangiographyMSCTAfordetectionandcharacterizationofpseudo-aneurysms.(Methods(SixteenpatientswithpseudoaneurysmswerereferredforMSCTA#&of#&.BasedonoriginalimagesmultipleplanevolumereconstructionMPVRmaxinumintensityprojectionMIPandvolumerenderingVRallimageswerereconstructed.(Results(MSCTAwassuccessfullyperformedinall#&patientswithpseudoaneurysmsindifferentlocationscervixn.2thorasn.2abdomenn.lowerlimbn./.IntermsofdetectionthediagnosticaccuracyofMSCTAwas#$$%#&/#&.Thenecksofthepseudoaneurysmswerecorrectlyvisualizedin&.*%ofpatients%/#&onMSCTA.Arteriovenousfistulaformationwaspresentin*cases#).)%andmasseffectoveradjacentstructureswasfoundin&cases*/.%.Conclusion(MSCTAisausefulnoninvasivetechniquethatcanaccuratelydetectandcharacterizepseudoaneurysmsaswellastheiranatomicalrelationshipstotheadjacentstructures.Keywords(pseudoaneurysm(tomography(X-raycomputed(angiography(multislicespiralCTangiography((CT#&CTmultislicespi-ralCTangiographyMSCTA(#ߑ&2*&&00#(GELightspeedQX/iCTHSpitch.&2##2$kV2$$12$mA*./mm#.$mm999Vol.22.#$.mL/s2%#$s&’’#&2’mLADW$.&((&)MSCTA&222’.*#$.)cm22+/&&MSCTA&.CT$.)cm&.)cm2.&&).$%,/&)*A2BC*$*.%$&%.%%DE)Fn-,n-)n-&MSCTAFig3DreconstructionofMSCTAindifferentpseudoaneurysmsAatraumaticpseudoaneurysmofleftcommecarotidarteryBleftcommecarotidarterypseudoaneurysmcompressedtheipsilateralinternaljugularveinCawide-neckpseudoaneurysmdeformedtheharbouringrightfemoralarteryDEapseudoaneurysmofrightcommeiliacarteryDasscoiatinganarterio-venousfistulaEFsplenicarterypseudoaneurysmwithpaitialintra-luminalclotcompressedtheharbouringarteryandthepancrease.(((&&.%%2$.%#&’%+%&*%&2%$0001No.10CT161$6%%11&’MSCTA(CTA%)6CT1$MSCTADSADSA*’MSCTA(DSA+%)%%,110MRIMRICTCTCTADSACTACTA11MSCTACTMSCTA1((.J.+00%&+$%0+-%0%.+BeattieGCHardmanJGRedheadDetal.Evidenceforacentralroleforselectivemesentericangiographyinthemanagementofthema-jorvascularcomplicationsofpancreatitisJ.AmJSurg+00&1’$,6-10+.&.J.1,,61&1,0-1,1.%MuneraFSotoJAPalacioDMetal.PenetratingneckinjurieshelicalCTangiographyforinitialevaluationJ.Radiology+00+++%+&66-&*+.$RamsayDWMcAuliffeW.Traumaticpseudoaneurysmandhighflowarteriovenousfistulainvolvinginternaljugularveinandcommoncaro-tidartery.TreatmentwithcoveredstentandembolizationJ.Aus-tralasRadiol+00&%*+1**-1’0.6(.J.+00&1’11’1+-’1%.*.DSAJ.+00%1%&+%+-+%%.’((.IADSAJ.1,,*1&%+++-++&.,.J.+001+0%’&.10PaulsonEKSheaforDHKliewerMAetal.TreatmentofiatrogenicfemoralarterialpseudoaneurysmscomparisonofUSguidedthrombininjectionwithcompressionrepairJ.Radiology+000+1$%0&-%0’.11DyerDSMooreEEMestekMFetal.CanchestCTbeusedtoex-cludeaorticinjuryJRadiology1,,,+11,$-+0+.+00$-0’-10+00$-0,-1+1001