• Coarctation of the aorta
    • Tubular hypoplasia of the transverse arch and aortic isthmus
  • Coarctation of the aorta
    • Tubular hypoplasia of the transverse arch and aortic isthmus
    • Flow persists into diastole by color Doppler 
  • Coarctation of the aorta
    • Color Doppler flow across a hypoplastic aortic isthmus
  • Coarctation of the aorta
    • Hypoplastic aortic isthmus
    • Retrograde flow (blue color Doppler jet) noted by color Doppler in distal transverse and aortic isthmus
  • Coarctation of the aorta
    • Three vessel view revealing size discrepency between pulmonary artery and aorta
    • Hypoplastic aortic isthmus with retrograde flow noted (blue flow)
  • Coarctation of the aorta
    • Hypoplastic distal transverse arch and aortic isthmus
  • Coarctation of the aorta
    • Tubular hypoplasia of the distal transverse arch and aortic isthmus
    • Persistent retrograde flow (blue color Doppler jet) noted at aortic isthmus and distal transverse arch
  • Coarctation of the aorta
    • Still frame of a hypoplastic aortic isthmus
  • Coarctation of the aorta
    • Tubular hypoplasia of the transverse arch and aortic isthmus
    • Still frame with measurement of a hypoplastic distal transverse arch
    • Still frame reveals retrograde flow in transverse arch (blue flow)
  • Coarctation of the aorta
    • Spectral Doppler revealing retrograde flow (flow below baseline) in transverse arch
  • Coarctation of the aorta
    • Spectral Doppler revealing persistent flow into diastole at a hypoplastic aortic isthmus

Fetal coarctation of the aorta.