Objective To summarize the prenatal ultrasonographic characteristics of anomalous origin of one pulmonary artery from the aorta( AOPA ) ,and describe the diagnostic and clinical outcomes of fetal AOPA . Methods Echocardiographic characteristics of 3 fetuses with AOPA were reviewed . The ultrasonographic features were comparatively analyzed with postpartum autopsy findings . The relevant literature were reviewed and the experience of prenatal diagnosis of AOPA were summarized . Results In 3 cases with AOPA ,2 cases were the proximal type and anomalous origin of right pulmonary artery from the aorta ,of them ,one was accompanied with coarctation of the aorta , the other was accompanied with aortopulmonary window . One case was the distal type and anomalous origin of left pulmonary artery from the left innominate aorta ,it was only associated with mirror right aortic arch and right ductus arteriosus . Ultrasound characteristics were no bifurcation in distal pulmonary artery ,main trunk of pulmonary artery extends directly to one branch ,the other branch originated from the ascending aorta or left innominate artery . Three cases were confirmed by postpartum autopsy . Conclusions There are some characteristic signs on ultrasonic features of AOPA . Prenatal ultrasound has important value for diagnosis of AOPA .

Objective To summarize the prenatal ultrasonographic characteristics of unroofed coronary sinus( URCS) for improving the prenatal echocardiography diagnostic accuracy of URCS . Methods The retrospective review for prenatal ultrasonogram of 7 fetuses was applied ,which were diagnosed as URCS . The prenatal ultrasonographic characteristics of 7 fetuses with URCS were reviewed and comparatively analyzed with postpartum autopsy findings or postnatal echocardiography . The relevant literatures referring to the prenatal diagnosis of URCS were reviewed . The experience of prenatal diagnosis of URCS were summarized . Results In 7 cases with URCS ,5 cases of completely URCS were associated with right atrial isomerism syndrome and confirmed by postpartum autopsy ,and 2 cases of partially URCS were only with persistent left superior vena cava and confirmed by postnatal echocardiography . The karyotype analysis of 2 cases of partially URCS on amniotic fluid was normal . Conclusions There are some characteristic signs in ultrasonic features of URCS . URCS can be diagnosed by prenatally ultrasonography . A long axial section of the coronary sinus is the most important view for prenatal ultrasonic diagnosis of U RCS .