If the aortic arch is interrupted, the PDA, via the ductal arch, will supply the descending aorta. Special care should be taken to not confuse the ductal arch with the transverse arch, the ductal ...
The 'ductal' view is ideal to visualize the isthmus ... for evaluation of residual coarctation, aneurysm formation, aortic arch hypoplasia, ventricular function, left ventricular outflow tract ...
The ascending aorta continues upward to form the aortic arch, where the oxygenated blood supply to your head originates. The aorta continues on down to the descending aorta that further supplies blood ...