The aim of this work is to compare Gadolinium-enhanced magnetic resonance angiography with conventional angiography in cases of renal artery stenosis. The study revealed that MRA is an alternative, non-invasive way for imaging the renal arteries. Early studies were performed without contrast medium. Gadolinium-enhanced MR angiography has been proved to be more sensitive. Gadolinium-enhanced MR angiography can differentiate insignificant from significant stenosis and can detect accessory arteries. So it is advised to apply contrast enhanced MRA as a screening method for diagnosis of renal artery stenosis in cases of failure of color Doppler sonography.