Cardiac MRI demonstrates the coarctation of the aorta. Aortogram shows severe juxtaductal coarctation of the aorta (arrow), 20 mm from the take off of the left subclavian artery (LSc). There is antegrade flow from the LV with significant compromise after the coarctation. Asc Ao: ascending aorta; LSc: left subclavian artery; LV: left ventricle. 