Radiological evaluation of aneurysmal sac, thrombus diameter and load following endovascular treatment of abdominal aortic aneurysm and assessment with patient risk factors

The main objective of the repairment of aort aneurism is to prevent aortic rupture. Either open surgery of the aortic aneurism or endovascular treatment (EVAR) procedures aim to exclude ?sacculer aneurism? from the main circulation. There has been a significant increase in the patients treated with endovascular surgery due to the recent technical advances. However, the long term total and aneurism related mortality has not been changed, even perioperative morbidity and mortality rates are considerably lower in endovascular surgery. Rupture of the aneurysm is the main cause of mortality as a late complication following EVAR. Ct angiography is the best method in monitoring EVAR procedures.There are independent variables such as preoperative aneurysm diameter, thrombus load, number and diameter of aortic branches, diameter of minor neck, length of proximal neck, evidence of plaque/thrombus in the carotid artery, shape of neck , endoleak, age, sex, smoking, antiaggregating and anticoagulant therapy, which could influence the behaviour of the sac. The significant reduction in the diameter of the nec is a strong indicator of the therapy success.The anatomical variables are very important in the selection of patients for EVAR procedure.This study aims to predict the long time morbidity in patients treated with EVAR by monitoring the diameter of the sac and thrombus by CT-angiography, and to determine the influence of the related risk factors in the follow-up of these patients.Key words:Evar, aortic,aneurysm