Video 44.3 Pulmonary veins with color Doppler
Pulmonary veins with color Doppler. Normal fetal heart at 18 weeks shown in the 4-chambered view to show pulmonary venous drainage. A color box is placed over the left atrium and shows one left (blue) and one right (red) pulmonary vein entering the left atrium. The pulsatile descending aorta is seen behind the left atrium and is spatially related to the left pulmonary artery.