MR Arotography with Contrast (MRA)

MR aortography with contrast i.e. magnetic resonance imaging is a technique used to visualise the blood flow through the carotid artery (arteries which supply oxygenated blood to the head and neck) and intra-cerebral arteries (arteries which supply blood to the cerebrum). Gadolinium (a radio contrast material) is injected into the veins for better visualization of the blood flow through the arteries.