前言目的:提高影像学诊断先天性主动脉瓣、瓣上及瓣下狭窄的水平。材料和方法:主动脉瓣狭窄12例,主动脉瓣下狭窄5例,主动脉瓣上狭窄7例,均行X线检查,MRI21例,心血管造影（CAG）15例,手术证实15例。结果:主动脉瓣狭窄MRI显示瓣膜增厚、瓣口狭窄2例;主动脉瓣下隔膜型狭窄MRI示3例,CAG示1例;MRI示主动脉瓣上纤维嵴型狭窄6例及发育不良型狭窄1例。结论:X线平片难以提供确定诊断的依据;超声心动图对主动脉瓣上狭窄的诊断有限;除主动脉瓣狭窄外,MRI可弥补超声心动图诊断中的不足,二者结合可达到术前诊断的目的,除特殊适应症外,无须行CAG检查。
Purpose:Toassessthediagnosticefficacyofimaginginthecongenitalaorticstenosis,subvalvularaorticstenosisandsupravalvularaorticstenosis.MaterialsandMethods:12caseshadtheaorticstenosis,5caseshadthesubvalvularaorticstenosis,and7caseshadthesupravalvularaorticstenosis.AllcaseswereexaminedbyXray,21of24caseshadMRI,15caseshadcardiovascularangiography（CAG）and15caseswereconfirmedbyoperation.Results:Thethinkenedaorticvalveandthevalvularorificestenosi...
