Video 21.12 Narrowing of the aortic isthmus is seen in this sagittal view of a 21-week-gestation fetus
Narrowing of the aortic isthmus is seen in this sagittal view of a 21-week-gestation fetus. The aortic ampula of the arterial duct is connected to the descendent thoracic aorta, whereas the transverse aortic arch is severely hypoplastic.