Table 11

Corrected transposition of the great arteries

Consider the diagnosis if there is difficulty in obtaining a long axis view
Identify the left sided ventricle as a morphological right ventricle
• more apical position of its atrioventricular valve
• chordae attached to the septum
•  discontinuity (infundibulum) between its inlet valve and great artery
Confirm the right sided ventricle as a morphological left ventricle
• less apical position of its atrioventricular valve
• chordae not attached to the septum
•  continuity (no infundibulum) between its inlet valve and great artery
Demonstrate great artery roots as 2 circles in a short axis view
•  identify the anterior left artery as aorta from its long upward course
• identify the posterior right artery as pulmonary artery from its branching
Assess any apical displacement or regurgitation of the tricuspid (left) valve
Check for presence of ventricular septal defect or pulmonary stenosis