Set of examples of the native MRA (left) and the contrast-enhanced MRA (right): a) Thoracic aorta with normal dimensions. The sharpness of the aortic root achieved with the native MRA (left) is visible in comparison to the blurry borders provided by the contrast-enhanced MRA (*; right). b) Large ascending aortic aneurysm. c) Aortic coarctation (white arrow). Again the blurry aortic root with the contrast-enhanced MRA is recognizable (*; right).