Background. This paper presents imaging diagnostics of an aneurysm of the aorta, indications, common contraindications and measurements for the construction and selection of an endoprosthesis. The ...examination using ultrasound is the most handy and economically justifiable method for detectingan aneurysm of the aorta, for monitoring asymptomatic aneurysm as well as patients having undergone an operation or those with an endoprosthesis. Another examination to visualise the aortic aneurysm is CT with or without contrastive medium. The plan for treating an aneurysm can be made with the help of a DSA, helical CT angiography and/or MRA. DSA shows wellthe lightness of the aneurysm and the aorta, as well as the changes insideof it, large arteries close to the aneurysm and the condition of pelvic arteries for the selection of the approach. The helical CT angiography and MRAin two or three dimensional reproduction in several directions enable an accurate measurement of an aneurysm, the aorta diameter above and below the aneurysm, and the evaluation of the quality of its wall. Conclusions. The indication areas for endoprosthesis are aneurysm of the abdominal aorta and those of the descending part of thoracic aorta. The treatment with endoprosthesis as a less invasive method is indicated in patients who risk a number of complications and even mortality when treated surgically. Endoprosthesis is made of metal stent and prosthesis. The stent attaches the endoprosthesis to the unaffected part of the aorta above and below the aneurysm, it sets the stent asunder and provides support. The prosthesis is made of Dacron synthetic fabric, which has very good properties for this purpose such as small compliance, porosity, permeability and extensibility. The endoprosthesis is introduced into the aorta through a catheter system withthe help of a special guide wire. The entering point is surgically opened common femoral or iliac artery.
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