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1、CongenitalAorticArchAnomaliesinBroadDefinitionObstructivecongenitalaorticarchabnormalities,COA,IAANon-obstructivecongenitalaorticarchabnormalitiessuchasdoubleaorticarchandrightaorticarchwithaberrantleftsubclavianarteryandsoonCongenitalaorticarchshuntabnormal
2、ities,PDA343casesCongenitalAorticArchAnomaliesMRAdiagnosisAllexaminationswereperformedbetweenApril1999andDecember2003.216maleand127female,withanagerangeof5daysto11years(mean2.4years)AllexaminationswereperformedwithGESigna1.5TMRunitMRExaminationTechniqueECGga
3、tedT1-weightedspin-echosequencewasperformedineverycaseGradient-echocinesequencewasperformedineverycasePhase-contrastcinesequencewasperformedinsomecasesCE-MRAwasperformedineverycase.CE-MRAisthemosthelpfulsequence343casesCongenitalAorticArchAnomaliesMRAdiagnos
4、isPDA（patentductusarteriosus)139COA（coarctation）135,IAA（interruptionofaorticarch）27Non-obstructivecongenitalaorticarchabnormalities42Diagnosticaccuracy:CE-MRA96.8%echocardiography87.2%ObstructiveCongenitalAorticArchAbnormalities135COA,83werewithoutPDAand52we
5、rewithPDA27IAA,18weretypeAIAAand9weretypeBIAA.ObstructiveCongenitalAorticArchAbnormalitiesInsomeverysevereCOAandIAA,CE-MRAevencangivemoreinformationthanX-rayangiocardiography.CE-MRAdidnotmakeaccuratediagnosesfor2COA,1IAANon-obstructivecongenitalaorticarchabn
6、ormalitiesdoubleaorticarch2,rightaorticarchwithaberrantleftsubclavianartery12,rightaorticarchwithisolatedleftsubclavianartery2,leftaorticarchwithaberrantrightsubclavianartery13,fifthaorticarch3,cervicalaorticarch2,rightaorticarchwithleftdescendingaorta4,left
7、aorticarchwithrightdescendingaorta1,rightaorticarchwithaberrantleftinnominateartery1,leftaorticarchwithisolatedrightsubclavianartery1,rightaorticarchwithisolatedleftinnominateartery1.Non-obstructivecongenitalaorticarchabnormalitiesEdwardsschemeisveryhelpfulf
8、orunderstandinganddiagnosesofnon-obstructivecongenitalaorticarchanomalies.FifthaorticarchCervicalaorticarchPulmonaryarteryslingCongenitalaorticarchshuntabnormalities139PDAcases,3werewindowtypePD
