Endovascular treatment of carotid artery stenosis is a minimally invasive procedure in which the carotid artery is accessed through the femoral artery and a stent is placed to widen the narrowed lumen of the artery, most often stenosed by plaque. Plaques are formed due to atherosclerosis, which is defined as a process of thickening of the blood vessel wall characterized by inflammation and proliferation of the cells of the same wall. Stenoses are divided into mild, if the narrowing of the lumen is about 25%, moderate if it is more than 50% or significant if the narrowing is more than 70%. Atherosclerotic changes can be the cause of various cardiovascular diseases such as coronary heart disease, stroke or peripheral arterial disease. Ischemic stroke caused by stenosis of the internal carotid artery occurs in 8-30% of cases. In prevention, it is important to control environmental factors that influence the development of atherosclerotic changes, including hyperlipidemia, hypertension, smoking tobacco products, and diabetes. Diagnosing caroid artery stenosis and planning an endovascular procedure requires a Doppler ultrasound examination and/or CT/MR angiography with the use of an iodine contrast agent. This paper retrospectively analyzes three goals, age and the patency of the contralateral side in patients undergoing endovascular treatment of carotid artery stenosis at the Clinical Institute for Diagnostic and Interventional Radiology at KBC Rijeka, in the period from January 1, 2020 to December 31, 2020. 2023 and the technical success and number of complications of the procedure itself. In the above-mentioned period of time, data on 77 patients was collected anonymously from their medical records. With this research, we have confirmed that the largest number of patients undergoing the procedure are of an older age. We determined the number of patients who underwent endovascular treatment of the carotid artery with occlusion of the contralateral side. Also, we determined the percentage of complications of endovascular procedures.