MR angiography
MR an·gi·og·ra·phy (MRA),
MR angiography
Magnetic resonance angiography, MRI angiography ImagingA noninvasive method for evaluating the blood vessels of Pts with severe peripheral vascular disease or acute renal failure Pros Less time and cost than conventional catheter angiography without puncture; it is painless, no known complications, much more rapid than cerebral contrast angiography–CCA and allows construction of images in any plane; MRA is useful for imaging of ASHD and dissecting aneurysms of neck and intracranial aneurysms. See Magnetic resonance imaging.