超声心动图大致从两个方面协助先天性心脏病(先心病)的诊断,一是直接发现心脏大血管解剖结构的畸形;二是依靠间接发现某些先心病由于血液异常分流或反流,导致心脏大小、结构和活动(包括瓣膜)的异常。前者对诊断特异性较高,但偶尔多种疾 Echocardiography in roughly two ways to assist the diagnosis of congenital heart disease (CHD), one is directly found in the anatomy of the heart of large blood vessels deformity; the second is indirectly found by some of the congenital heart disease due to abnormal blood flow or reflux, resulting in Abnormalities in heart size, structure and activity (including valves). The former has higher diagnostic specificity, but occasionally many diseases