Helical CT Evaluation of Pulmonary Arteries and Aortopulmonary Collaterals in Pulmonary Atresia.
INTRODUCTION Tetrology of Fallot (TOF) comprises 3.9% of congenital heart disease,[1] of which approximately 5–10% have pulmonary atresia (PA) with ventricular septal defect (VSD). Two-thirds of the cases with PA are associated with major aorto pulmonary collateral arteries (MAPCAs).[2] Survival rate without surgery can be as low as 50% at 1 year of age and […]