What's the best test for renal artery stenosis in patients with refractory hypertension?
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Magnetic resonance angiography (MRA) and computed tomography angiography (CTA) are the most consistently accurate, noninvasive screening methods. MRA is likely the preferred option because of its lack of radiation and reduced risk of contrast media (strength of recommendation [SOR ]: A, large meta-analyses).
Journal of Family Practice, 58(4) 2009: 215-216a.