with the use of a two-dimensional range-gated pulsed-doppler ultrasound system , doppler examinations of the aorta and cerebral arteries were performed in 20 normal newborn infants and in 54 infants with various forms of congenital heart disease ( i.e . patent ductus arteriosus , coarctation of the aorta , critical aortic stenosis , pulmonary atresia , truncus arteriosus ) .
C0152021
of congenital heart
C0242855
pulmonary atresia