目的：探讨超声心动图诊断先天性四叶式主动脉瓣畸形的价值。
Objective:To explore the echocardiographic diagnostic value of congenital quadricuspid aortic valve(QAV)deformity.
主动脉瓣病变主要是先天性二瓣化畸形（19例，5 9% ）。
The pathology of aortic valve was bicuspid valve (19 cases, 59%).
主动脉瓣病变主要是先天性二瓣化畸形（19例，5 9% ）。
The pathology of aortic valve was bicuspid valve (19 cases, 59%).
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