Prenatal diagnosis of hypoplastic aortic arch and coarctation of aorta
is still challenging and remains one of the most difficult cardiac
defect to diagnose. The results reveal significant improvement of
prenatal diagnosis of hypoplastic arch and coactation of aorta. The data
also shows the significant overlapping of fetal aortic isthmus z score
between the infants who need the arch procedure and those who do not.