How to Use
  1. Home
  2. Library: CHD Image Library
  3. Lesion: Double Inlet Left Ventricle (DILV)
  4. View: Parasternal Long Axis
  • Double Inlet Left Ventricle (left-handed ventricular topology, L-TGA)
    • Parasternal long axis sweep demonstrating parallel great arteries with the aorta anterior and leftward (L-TGA)
    • The anterior leftward aorta arises from a small anterior leftward subaortic hypoplastic RV cavity (seen at end of sweep)
    • The pulmonary artery arises posteriorly from the LV
    • Thickened left-sided AV valve leaflets with accessory chordal tissue which extends into the subpulmonary outflow tract
  • Double Inlet Left Ventricle (left-handed ventricular topology, L-TGA)
    • Parasternal long axis color compare sweep demonstrating parallel great arteries with the aorta anterior and leftward (L-TGA)
    • The anterior leftward aorta arises from a small anterior leftward subaortic hypoplastic RV cavity (seen at end of sweep)
    • The pulmonary artery arises posteriorly from the LV
    • Thickened left-sided AV valve leaflets with accessory chordal tissue which extends into the subpulmonary outflow tract
    • Flow turbulence noted which begins in the subpulmonary region near the chordal tissue
  • Double Inlet Left Ventricle (left-handed ventricular topology, L-TGA)
    • The pulmonary artery arises posteriorly from the LV
    • Thickened left-sided AV valve leaflets with accessory chordal tissue (represented by the star) which extends into the subpulmonary outflow tract
  • Double Inlet Left Ventricle (left-handed ventricular topology, L-TGA)
    • The pulmonary artery arises posteriorly from the LV
    • Thickened left-sided AV valve leaflets with accessory chordal tissue which extends into the subpulmonary outflow tract
    • Flow turbulence noted with a narrow jet of antegrade flow across the subpulmonary and pulmonary valvar region
  • Double Inlet Left Ventricle (right-handed ventricular topology, D-TGA)
    • Parallel great vessels 
    • The pulmonary artery arises posteriorly from the left ventricle
    • The aorta arises anteriorly from the hypoplastic right ventricular chamber
    • The pulmonary artery arises posteriorly from the LV
    • Laminar flow noted across the pulmonary valve, VSD and aortic valve
    • Muscular VSD with left-to-right shunting into the hypoplastic RV chamber
  • Double Inlet Left Ventricle (right-handed ventricular topology, normally related great arteries)
    • Parasternal long axis sweep (posterior to anterior, sweeping from left AVV to right AVV, pulm outflow at end of sweep anteriorly)
    • The pulmonary artery arises normally anteriorly from the hypoplastic subpulmonary RV chamber
    • The aorta arises posteriorly normally from the LV
  • Double Inlet Left Ventricle (right-handed ventricular topology, normally related great arteries)
    • Parasternal long axis color sweep (posterior to anterior, sweeping from left AVV to right AVV to VSD to pulm outflow at end of sweep anteriorly)
    • The pulmonary artery arises normally anteriorly from the hypoplastic subpulmonary RV chamber
    • The aorta arises posteriorly normally from the LV
    • Laminar left-to-right flow noted across a muscular VSD into hypoplastic subpulmonary RV cavity 
    • Mild flow acceleration noted across the subpulmonary region and pulmonary valve (at end of sweep)

Parasternal long axis view. 

Next View