Aortic aneurism rupture is an extremely serious condition that requires emergency surgical treatment. A timely diagnosis of abdominal aortic aneurysm’s rupture risk remains extremely important, since the patient mortality rate is up to 7 times higher when performing an emergency surgery, than when performing a planned surgery.

CT studies were performed by a 160-slice CT scanner and included the native and arterial phases of the scanning.The MSCT data of 89 patients with diagnosed abdominal aortic aneurysm were retrospectively studied, in 11 of whom the condition was complicated by an aortic rupture during the hospital period. CT scans can reveal a number of specific structural changes in the aorta and surrounding tissues, which can be regarded as aortic wall rupture prediction.

The following sings were identified, also was suggested their gradation:-a sickle sign (5 grades) - is a hemorrhage into parietal thrombotic masses. Оn native CT scans, sickle sing is defined as a hyperdense zone, often crescent-shaped. According to the severity of data changes, the sign was divided into 5 grades: No changes. Hemorrhage with a spread of up to 1/4 of the aortic circumference. Hemorrhage with a spread of up to 2/4 of the aortic circumference. Hemorrhage with a spread of up to 3/4 of...

The CT method allows for a quick and comprehensive diagnose of abdominal aortic aneurysms. Stratification of the signs of aortic wall instability makes it possible to more accurately predict the risk of a possible aneurysm rupture. The combination of the air crescent sign (grade 4 and 5) and the draped aorta sign (grade 3 and 4) has a high predictive value and can be taken into account when choosing a treatment strategy.

D. Tutova: Nothing to disclose R. Muslimov: Nothing to disclose L. Khamidova: Nothing to disclose L. Kokov: Nothing to disclose

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