Comparison of Diagnostic Accuracy of Multislice CT Angiography with Conventional Coronary Angiography in bypass Graft Stenosis Morethan 50% Among Symptomatic Patients after Coronary Artery Bypass Graft Surgery

[摘要] BackgroundandObjective:Conventionalcoronaryangiographyisthegoldstandardtechniqueforevaluationofcoronarybypassgraftsstenosis.Thisstudywascarriedouttofinddiagnosticaccuracyofmultisclice64CTangiographyindiagnosisofbypassgraftstenosisratherthanconventionalcoronaryangiography.SubjectsandMethods:ThisprospectiveandretrospectivestudywasperformedinuniversityandprivatehospitalsinAhvaz,Iranfrom2007to2012.Alldatawerecollectedfrompatientswithpasthistoryofcoronaryarterybypasssurgery(CABG)whopresentedwithchestpainorischemiaaccordingtononinvasivetesthadindicationforconventionalcoronaryangiography.Arterialandvenousgraftsfrom143patientswereassessedbyCTangiographyandconventionalangiographywastakenfrom53patientswithhistoryofCABG.AlldatawascollectedandanalyzedbySPSSversion17.Results:Themeanageofmenwas59.4±10andwomen59.9±8years(34%werefemalesand66%weremales).Sensitivity,specificity,positiveandnegativepredictivevalueanddiagnosticaccuracyinCTangiographywererespectively95,100,100,86and96%inproximaland100,100,100,100,and100%inmiddlepart;and71,96,93,83and86%indistalpartofarterialandveingraftbypassincomparisonwithinvasiveconventionalcoronaryangiography.Conclusion:DiagnosisofocclusionandstenosisofarterialandvenousbypassgraftsbyCTangiographyisaccurateandeffectiveandmaybedecreaseconventionalcoronaryangiographyamongpatientswithCABG

[学科分类] 基础医学