Radiological findings of dissecting aneurysm

다국어 초록 (Multilingual Abstract)

This study comprised 16 patients with aortic dissecting aneurysm who were admitted to Seoul national Univ. Hospital from May 1984 to January 1987. CT findings in 16 cases of aortic dissecting aneurysm were correlatedwith angiographic findings retrospectively. RESULT : 1. Numger of male was 11 and that of female was 5. Male patients in fifties were most common and 4 in number 13 patients had hypertension or history of hypertensionamong 14 patients. There were one case of Marfan's syndrome, preeclampsia and Takyasu's arteritis respectively. 2. There were 5 cases of DeBakey type I, 1 case of type II and 9 cases of types IIIdissecting aneurysm. Type III was most common. 3. CT confirmed as superior vena cava which was not identified whether it was superior vena cava or unopacified false lumen by angiography in one case. Regarding distal extent, authors defined A whose extent was proximal to diaphragm and B beyond it for convenience sake. There was one false negative case in CT amo g 16 cases which was diagnosed as dissecting aneurysm type IIIB by angiography adn confirmed as type III surgically. One case was diagnosed as type IB by CT and as type IIIB by angiogrpahy and confirmed as type I surgically. Extent was ore auccurate in CT than angiography. One case was diagnosed as type II by CT but misdiagnosed as right a\trial tumor by angiography. 4. Diagnostic sensitivities of CT and angiography in this study were 94% respectively. CT was more advantageous in hemothorx, hemopericardium, hemomediastinum, unopacified false lumen, aortic wall calcification and getting informations about mediastinum. In angiography aortic regurgitation and tear site and involvement of abdominal vessels could be observed.