【摘要】 本文报道二例经手术证实的先天性二尖瓣瓣上狭窄。阐述了其解剖特点、胚胎学来源、病理及血流动力学改变,描述并评价了其各种影像学(包括X线胸片、超声、心血管造影及磁共振成像)的检查方法及其表现特点,并说明了与三房心的鉴别要点。更多还原

【Abstract】 Two cases of congenital supravalvular mitral stenosing ring proved by surgery were reported. The anatomical characteristics, embryological origin, the changes about pathology and hemodynamica of supravalvular mitral stenosis were expounded. The examination methods and the features of every imaging techniques (including X - Ray chest film, US, cardio-angiography and MRI)were described and evaluated. The essential points of difierence between the disease and Cor triatrium were also explained.更多还原