Fig. 1
From: Prenatal diagnosis and mRNA profiles of fetal tetralogy of Fallot
Ultrasonographic observation of fetal TOF. A In the left ventricular outflow tract view, a malalignment-type VSD was detected, and the aorta root overrode the ventricular septum. B In the short axis view of great arteries, the conal septum moved anteriorly, and stenosis of the RVOT and PA were identified. C The diameters of branch pulmonary arteries were slightly small but closed to normal. D The typical “double-peak” pattern in systole of spectral Doppler ultrasound in the PA confirmed stenosis of the PA