PMC4540993_01
Fetal echocardiography at 17 weeks' gestation. Two-dimensional gray-scale (a) and high definition color Doppler (b) images in three-vessel and trachea view. The right aortic arch (Rt Ao A) and ductus arteriosus (DA), forming classic "U" shape. MPA, main pulmonary artery; SVC, superior vena cava.
CRIOG2015-813104.001.jpg
PMC4540993_01_CRIOG2015-813104.001.jpg
fig1
Ultrasonographic examination was performed at 17 weeks' gestation using a Voluson E8 and RAB 4-8P (4D, 4-8 MHz Convex) probe (GE Healthcare, Milwaukee, WI) which revealed a singleton fetus with right aortic arch (Figure 1).