• Transposition of the Great Arteries
    • Pulmonary artery arises from the left ventricle
  • Transposition of the Great Arteries
    • Pulmonary artery seen arising from the left ventricle
    • Normal laminar flow across the pulmonary valve 
  • Transposition of the Great Arteries
    • Pulmonary artery is seen arising from the left ventricle and bifurcating into its branches
    • Normal laminar flow across the pulmonary valve
  • Transposition of the great arteries (D-TGA) with VSD
    • Pulmonary artery seen arising from the left ventricle
    • Moderate sized doubly committed juxta-arterial VSD
  • Transposition of the great arteries (D-TGA) with VSD
    • Pulmonary artery seen arising from the left ventricle
    • Moderate sized doubly committed juxta-arterial VSD
    • Small PDA seen draining near LPA (red color Doppler flow)

The apical view is an excellent view to profile the outflow tracts and confirm the diagnosis of transposition of the great arteries. The pulmonary artery can be seen arising more posteriorly from the left ventricle and bifurcating and the aorta can be seen arising more anteriorly from the right ventricle. VSDs can also be demonstrated and profiled from this view. Patients with transposition can often have large VSDs with posterior malalignment of the ventricular septum causing varying degrees of subpulmonary/pulmonary stenosis (left sided ouflow tract).

  • Transducer at cardiac apex
  • Notch at 3-4 o'clock (slight clockwise rotation)
  • 4th or 5th intercostal space 
  • Sweep probe from posterior to anterior to define origin and location of outflow tracts
  • Transposition of the Great Arteries (origin and position of outflow tracts)
  • VSD
  • Subpulmonary/pulmonary stenosis