CT - CT angiography
Axial C+ arterial phase
Oblique C+ arterial phase
Hypoplasia of the aortic arch involving the distal arch and isthmus with remaining small communication with descending aorta.
Significant dilatation of pulmonary trunk with large PDA communicating with the descending aorta which appears normally located on the left side. The pulmonary veins are seen and appear patent but attenuated.
Reflux of contrast in IVC and hepatic veins associated with the large right ventricle, suggesting right-sided heart failure.