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  2. Library: CHD Image Library
  3. Lesion: Truncus Arteriosus
  4. View: Parasternal long axis
  • Truncus Arteriosus
    • Conoventricular VSD
    • Truncal valve overrides native interventricular septum
    • Thicked truncal valve with restricted excursion
  • Truncus Arteriosus
    • Conoventricular VSD with bidirectional shunting
    • Truncal valve overrides native interventricular septum
    • Thicked truncal valve with restricted excursion with flow turbulence
    • Moderate truncal regurgitation

Parasternal Long Axis

  • Demonstrate the location and size of VSD.
  • Demonstrate the override of the common trunk.
  • Evaluate for mitral-truncal valve continuity.
  • Interrogate for truncal regurgitation.
  • Demonstrate origin of pulmonary artery/branch pulmonary arteries.
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