AAA is a serious medical condition and is associated with a high rate of morbidity and mortality, therefore accurate diagnosis, preoperative evaluation, and appropriate management are critical for improved patient outcomes. Purpose: To determine the percentage of patients with an endoleak that was a postoperative complication of EVAR in the patients included in this study and to correlate the incidence of AAA with the age and gender of the patients, i.e. to determine whether the diameter of the AAA in the treated patients is greater than 5.5 cm. Methods: The research included 60 randomly selected subjects, of which 46 were male (77%) and 14 were female (23%), who underwent a CT aortography diagnostic examination in the period from May 1, 2021. until 01.05.2022. year, and 19 patients who underwent the EVAR interventional procedure at the Clinical Institute of Radiology, in the period from February 1, 2020. until 01.07.2022. Results: By dividing the respondents into age groups, at most, 27 or 45% of them were between the ages of 71 and 80. AAAs were most common in male patients in the age group 71-80 years, 21 cases or 35%, and in female patients it was also shown that AAAs were most common in the age group 71-80 years, 6 cases or 10% of the total number of subjects. Out of the total number of 19 patients treated with EVAR, 16 or 84% did not have an endoleak. Conclusion: Considering the obtained results, the research showed that the majority of treated patients do not have an endoleak and that men and the elderly have a higher risk of AAA.