<unk>  <unk>  is a group of techniques based on<unk><unk>  imaging (MRI) to image blood vessels.<unk>  is used to generate images of arteries (and less commonly veins) in order to evaluate them for stenosis (abnormal narrowing), occlusions, aneurysms (vessel wall dilatations, at risk of rupture) or other abnormalities.<unk>  is often used to evaluate the arteries of the neck and brain, the thoracic and abdominal aorta, the renal arteries, and the legs (the latter exam is often referred to as a "run-off").
Magnetic resonance angiography
Angiography
Radionuclide angiography
Computed tomography angiography
Microangiography
Angiology
Magnetic Resonance in Medicine
Digital subtraction angiography