Magnetic resonance angiographic techniques for the diagnosis of arterial disease.
Magnetic resonance angiography (MRA) techniques use inherent magnetization properties of tissues in combination with pharmacologic contrast agents, such as gadolinium, that shorten T1 relaxation time. The availability of powerful magnetic field gradients along with a variety of post-processing algorithms make MRA possible. MRA is widely used for the diagnosis of disease in a variety of vessels, including aorta, carotids, renals, mesenteric, and peripheral vessels. Performance of high-quality 3D contrast MRA requires appropriate understanding of MRA methodologies, including the critical dependence of bolus timing and ways to optimize it. Additionally, recognition of artifacts and learning to avoid them is important.
Rajagopalan
Sanjay
S
Division of Cardiology, Section of Vascular Medicine, University of Michigan, 1311 Women's Hospital, 1500 E. Medical Center Drive, Ann Arbor, MI 48107, USA. srajagop@umich.edu
Prince
Martin
M
D001012:Aorta, Abdominal / Q000473:pathology; D001013:Aorta, Thoracic / Q000473:pathology; D001018:Aortic Diseases / Q000175:diagnosis; D001157:Arterial Occlusive Diseases / Q000175:diagnosis*; D016477:Artifacts; D002340:Carotid Artery Diseases / Q000175:diagnosis; D003287:Contrast Media; D005682:Gadolinium; D006801:Humans; D006975:Hypertension, Portal / Q000175:diagnosis; D006978:Hypertension, Renovascular / Q000175:diagnosis; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008638:Mesenteric Arteries / Q000473:pathology; D008642:Mesenteric Veins / Q000473:pathology; D016491:Peripheral Vascular Diseases / Q000175:diagnosis
D003287:Contrast Media; D005682:Gadolinium