Objective To investigate the incidence, clinical characteristics and prognosis of malignant hypertension (MHT) resulted from renal artery stenosis (RAS).

Objective To explore color Doppler flow imaging (CDFI) value in the diagnosis and quantitive analysis of renal artery stenosis (RAS) in patients of hypertension of renal vessel.

Objective: To evaluate the primary and clinical efficacy of percutaneous transluminal angioplasty and stenting in patients with renovascular hypertension of renal artery stenoses.