AIM: To analyze structure of persistent truncus arteriosus (PTA), hemodynamics, and explore selection of view.
目的：分析永存动脉干(PTA)结构、血流动力学特征，并探讨切面的选择。
Conclusions Echocardiography was the first choice to diagnose persistent truncus arteriosus in clinical imaging diagnostic methods.
结论超声心动图可作为影像诊断永存动脉干的首选与筛选方法。
Objective To explore the echocardiographic characteristics of persistent truncus arteriosus and evaluate the value of echocardiography in clinical imaging diagnosis.
目的探讨永存动脉干的超声显像特征，评价超声心动图在永存动脉干影像诊断中的价值。
Objective To explore the echocardiographic characteristics of persistent truncus arteriosus and evaluate the value of echocardiography in clinical imaging diagnosis.
目的探讨永存动脉干的超声显像特征，评价超声心动图在永存动脉干影像诊断中的价值。
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