摘要
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 ,MRI 2 1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:To assess the diagnostic efficacy of imaging in the congenital aortic stenosis,subvalvular aortic stenosis and supravalvular aortic stenosis. Materials and Methods:12 cases had the aortic stenosis,5 cases had the subvalvular aortic stenosis,and 7 cases had the supravalvular aortic stenosis. All cases were examined by X ray,21 of 24 cases had MRI,15 cases had cardiovascular angiography (CAG) and 15 cases were confirmed by operation. Results:The thinkened aortic valve and the valvular orifice stenosis were seen in 2 cases with the aortic stenosis on MR. The membranous type stenosis were seen in 3 cases with subvalvular aortic stenosis on MR and in 1 case on CAG. All cases with supravalvular aortic stenosis were examined by MRI,6 of 7 cases showed fibromuscular type stenosis and 1 of them showed dysplasia type stenosis on MR. Conclusion:X ray examination is difficult in supplying the definite diagnosis; Echocardiography had limited value in diagnosing the supravalvular aortic stenosis; MRI could remedy the weakness of echocardiography.Combining MRI with echocardiography,it is able to attain the diagnosis before operation. Except for the special indication,the examination of CAG was not needed.
出处
《中国医学影像学杂志》
CSCD
2003年第2期84-85,88,共3页
Chinese Journal of Medical Imaging
关键词
先天性心脏缺损
MRI
心血管造影
congenital heart defect
magnetic resonance imaging
cardiovascular angiography
