MR angiography


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MR an·gi·og·ra·phy (MRA),

imaging of blood vessels using special magnetic resonance (MR) sequences that enhance the signal of flowing blood and suppress that from other tissues.

MR angiography

Magnetic resonance angiography, MRI angiography Imaging
A 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.
References in periodicals archive ?
Investigation of the circle of Willis using MR angiography.
Coronary MR angiography revealed: how to optimize image quality.
MR angiography is used to confirm the diagnosis and to see the anatomy of the vessels involved.
TOF MR angiography is based on the principle that blood flowing into an imaging section has higher signal intensity than the stationary tissue within that section, which is partially saturated.
Non-contrast enhanced MR angiography techniques have attracted interest in the medical community for diagnosing renal artery stenosis, as it eliminates the need for gadolinium-based contrast agents used with CT angiography.
1996) Three-dimensional time-offlight MR angiography and MR imaging versus conventional angiography in carotid artery dissections.
Three-dimensional gadolinium-enhanced MR angiography allows visualization of a lesion in any projection.
Peripheral MR angiography with blood pool contrast agent: prospective intraindividual comparative study of high-spatial-resolution steady-state MR angiography versus standard-resolution firstpass MR angiography and DSA," Radiology, vol.
Role of duplex colour Doppler ultrasound, computed tomography, and MR angiography in the diagnosis of septic puerperal ovarian vein thrombosis.
We report on the progression of the disease in a 3-year-old boy, confirmed to have idiopathic moyamoya disease, over 6 ensuing years, using serial magnetic resonance imaging with MR angiography.
Cardiac MR imaging and MR angiography for assessment of complex tetralogy of Fallot and pulmonary atresia.
Assesment of the collateral function of the circle of Willis: 3D-TOF MR angiography compared with TCCD sonography.