Localized Hyperattenuations in the Intraluminal Thrombus May Predict Rupture of Abdominal Aortic Aneurysms

It has been hypothesized that intraluminal thrombus (ILT) fragmentation may underlie rupture of abdominal aortic aneurysms (AAAs) (1,2). This hypothesis is based on the  theory that disruption of the ILT structure erases its shielding effect and permits the passage of blood onto the underlying wall, which may cause it to rupture. Bleeding into the thrombus seen on computed tomography (CT) examinations precedes aneurysm rupture in many cases (1,3,4). Dissecting blo od gives rise to high peripheral attenuation (crescent sign), which indicates urgent need for intervention (3,4).

Source: Journal of Vascular and Interventional Radiology : JVIR - December 17, 2017 Category: Radiology Authors: Mareia Talvitie, Moritz Lindquist Liljeqvist, Antti Siika, Rebecka Hultgren, Joy Roy Tags: Letter to the Editor Source Type: research