MRI of complex cyanotic congenital heart disease: pre- and post surgical considerations.

Evaluation of patients with complex congenital cyanotic heart disease requires a solid knowledge base of the underlying defects and a full understanding of surgical palliative and corrective procedures. As these patients survive into adulthood, understanding common conditions, their associated surgical procedures, and potential surgical complications is paramount for the radiologist. Use of magnetic resonance imaging in evaluation of these patients is a critical tool at the disposal of the radiologist.