Renal Duplex Ultrasound
Renal artery duplex ultrasound is accurate, non-invasive and cost-effective test to look for renal artery disease.
Renal artery provides blood flow to the kidneys. Renal artery disease, including narrowing (stenosis) due to atherosclerosis, can result in reduced blood-flow to the kidney. This can cause hypertension. Renal artery stenosis is the most common correctable cause of hypertension. Long-standing, untreated renal artery disease can lead to kidney failure.
Blood-flow speed and flow patterns in the aorta and renal arteries are evaluated with Doppler ultrasound. Imaging of the kidneys can provide information about secondary damage to the kidneys from chronic poor blood-flow. Flow patterns in the small vessels within the kidneys can provide additional information about kidney damage and the potential for recovery of kidney function with therapy.