Conclusions
D-TGA patients who do not have reverse differential cyanosis must be
investigated for aortic arch anomalies, particularly AORSA from the
pulmonary circulation. Because the full course of an AORSA is difficult
to visualize using TTE, the diagnosis is traditionally made by CT or
invasive angiography. We present and recommend a modified
echocardiographic imaging plane to visualize both the proximal and
distal course of an AORSA, ultimately allowing for safe and non-invasive
diagnosis.