How to Use
  1. Home
  2. Library: CHD Image Library
  3. Lesion: Transposition of the Great Arteries (DTGA)
  4. View: Parasternal long axis LVOT
  • Transposition of the Great Arteries (D-TGA)
    • Parasternal long axis sweep demonstrating the aorta arising anteriorly from the right ventricle and pulmonary artery arising posteriorly from the left ventricle
    • The pulmonary artery is seen bifurcating into the branch pulmonary arteries
  • Transposition of the Great Arteries (D-TGA)
    • Pulmonary artery is seen arising from the LV and seen bifurcating into branch PAs
    • The aorta arises anteriorly from the right ventricle
    • The great arteries appear in parallel
  • Transposition of the Great Arteries (D-TGA)
    • The pulmonary artery arises from the left ventricle
    • The aorta arises from the right ventricle
    • A small PDA can be seen from this view with flow entering the main pulmonary artery (narrow red color Doppler jet)
  • Transposition of the Great Arteries (D-TGA)
    • Pulmonary artery is seen arising from the LV and seen bifurcating into branch PAs
    • The aorta arises anteriorly from the right ventricle
    • The great arteries appear in parallel
  • Transposition of the Great Arteries (D-TGA)
    • Pulmonary artery is seen arising from the LV 
    • The aorta arises anteriorly from the right ventricle
    • The great arteries appear in parallel
    • Moderate sized PDA seen draining into main pulmonary artery (red color Doppler flow)
  • Transposition of the Great Arteries (D-TGA)
    • Parasternal long axis sweep demonstrating multiple (three) small muscular VSDs with predominantly right to left shunting

The parasternal long axis view is a good view to profile the great vessels. In D-TGA, the great vessels can often be seen traveling parallel to eachother in this view. The pulmonary artery can be seen arising from the left ventricle and traveling posteriorly appearing to dive downwards from this view and bifurcating. 

  • Transducer placed on the left sternal border
  • 3rd or 4th intercostal space
  • Notch pointed towards the patient's right shoulder (11 o'clock)
  • D-TGA (parallel great vessels, pulmonary artery seen arising from LV and bifurcating)
  • VSD
  • Subpulmonary/pulmonary stenosis (left sided ouflow tract)
Next View