Clinical role of non-contrast magnetic resonance angiography for evaluation of renal artery stenosis.

Background: The association between a gadolinium-based contrast material and nephrogenic systemic fibrosis has been discussed. The purpose of our study was to evaluate whether non-contrast enhanced magnetic resonance angiography (MRA) might provide sufficient information of renal artery stenosis.

Methods And Results: The non-contrast MRA of 26 patients with hypertension was retrospectively reviewed in the present study.