Video 21.32 Interrupted aortic arch (type A) in a 22-week-gestation fetus
Interrupted aortic arch (type A) in a 22-week-gestation fetus. Aortic arch visualized by 2D and color Doppler from leftward-oriented sagittal transabdominal view (magnified clip). Antegrade flow is clearly visible within the left carotid and left subclavian arteries, whereas flow imaged within the distal aorta is completely disconnected from the proximal aorta because the distal aorta is supplied from the arterial duct.