Renal artery stenosis (RAS) is one of the most common primary diseases of the renal arteries. It is associated with hypertension as well as ischemic renal disease. Its concomitant presence constitutes a high cardiovascular risk, thus timely diagnosis is important. This study aims to determine the occurrence of RAS in patients undergoing abdominal CT angiography and determines other factors that predict the highest-risk subset who have signifi cant renal artery narrowing. A retrospective review of records of 470 patients who underwent CT angiography of the whole abdomen was done. RAS occurs in about 9.57% of patients who had a CT scan of the whole abdomen. Older patients, patients with heart disease and patients with more atherosclerotic vessels in the abdomen increases the risk for signifi cant RAS (p values of 0.005, 0.008 and <0.001, respectively). Diabetes, hypertension as well as other imaging fi ndings such as the presence of aneurysm elsewhere seen in the abdominal scans and renal artery duplication do not statistically correlate with the increased risk for RAS in this study
Renal Artery Obstruction ; Computed Tomography Angiography ; Atherosclerosis ; Fibromuscular Dysplasia ; Hypertension