Ultrasonic assessment of transposition of the great vessels.

Echocardiography can provide important diagnostic information that identifies the transposition complexes, evaluates relative pressure levels in the pulmonic and systemic circuits, describes subpulmonic obstruction, and identifies some associated congenital anomalies. Following the Mustard procedure, baffle dysfunction may be recognized, and the function of the procine heterograft used in the Rastelli procedure studied. Echocardiography can also demonstrate other congenital cardiac defects that may mimic transposition of the great vessels or reveal normal cardiac and great vessel anatomy and function that can reliably rule out the transposition complexes.