双源ct冠状动脉成像的临床应用研究

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1、硕士学位论文ClinicalapplicationresearchofDual--sourceCTcoronaryangiographyMaster’Scandidate：LiuGuo．ShunSupervisor：Prof．ChengGuan—XunABSTRACT[Objective]1、Toexplorethemaininfluencefactorsoncoronaryarteryimagequalitywithdual-SOUrceCT(DSCl3．2、ToevaluatetheaccuracyofDSCTcoron

2、aryangiographyinthediagnosisofcoronarystenoses，compared晰mselectivecoronaryangiography(SCAG)，therelationshipbetweemtheplaquenatureandthestenosesde伊eeonDSCTandSCAGandthedifferenceofcoronaryarterystenosis芝50％byplaquebetweenDSCTandSCAG．3、TodiscussethediagnosisvalueofDS

3、CTincoronaryarteryafterstenting．4、TodiscussethediagnosisvalueofDSCTinmuralcoronaryartery-myocardialbridge．【MaterialsandMethods】1．TheresearchofinfluencefactorsofcoronaryarteryimagequalitywimDSCT1．1Generalinforrnation200examineeshadDSCTSCanforcoronaryangiographfrom20

4、09junetO2010august．TherewereI18male，29female，andaverageagewas55．174-10．50yearsold．AllDSCTimagesincludedacompleteexaminationofECGdata,allABSTRACTpatientssignedtheinformedconsentofcontrastenhancement．Thestudyofexclusioncriteria：respiratoryadverse，hadplacedstentorafte

5、rcoronaryarterybypassgrafting，unabletOfRinwithcheck,moderateorabovewithcalcification．pregnancyandunstablehemodynamics，cardiacandrenaldysfunctionandallergictoiodinecontrastmedium．1．2ApparatusandmethodsRetrospectiveelectrocardiogram(ECG)一gatedforcoronaryangiographywa

6、sperformedwithDSCZTwominutesbeforeCTexamination,allpatientshad5mgnitroglycerin(abouteverytime2spray)undertongue，butdidn’ttakebetablocker．Beforethescanning，placedkindelectricityshaftandconnectedtheonoffcondition,fromheadtofootscanning，sincethetrachealsubcarinallcmdo

7、wntothediaphragmaticmusclelevel．Scanningparameterswereasfollows：tubevoltage120KV,tubecurrent380mA，framerotatingtime310his，collimatorwidth32x0．6ram，levelacquisitionthickness64x0．75mm，pitch0．2～0．5锄．Usingdoubletubehighpressureinjector,allsubjectsfirstreceivedcalcifica

8、tionscanning，subsequentlywereinjected70to85minonioniccontrastagent(ultravist350mgI／mlor370mgI／m1)bytheantecubitalveinaccordingto5ml／Sflow，followe