Renovascular hypertension is one of the most common causes of secondary hypertension,which is caused by renal artery stenosis(RAS).Most RAS is caused by atherosclerosis or fibromuscular dysplasia.With the rapid development of imaging technology,the early detection rate of this disease has been increasing.In particular,various non-invasive imaging techniques play a crucial role in the diagnosis and treatment of RAS,which can early identify abnormalities of renal artery,renal structure and function,and help patients achieve early diagnosis and obtain early adequate treatment.This article reviews the application progress of imaging in the evaluation of RAS.
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