Fig. 3
From: Features of infective native aortic aneurysms on computed tomography
CT findings of INAA instability. a Axial CECT image of a 77-year-old female patient reveals an infrarenal aneurysm and periaortic soft-tissue mass without signs of instability. b Axial NECT image of a 68-year-old male patient depicts hyperattenuation of the peripheral thrombus in an infrarenal aneurysm indicating impending rupture. c Axial CECT of a 61-year-old female patient demonstrates a multilobulated infrarenal aneurysm with its posterior wall draping along the anterior vertebral body, draped aorta sign, representing contained rupture. d Coronal MIP angiographic CT image of a 63-year-old male patient reveals active contrast extravasation from the infrarenal INAA into the retroperitoneal cavity indicating free rupture. INAA infective native aortic aneurysm, CECT contrast-enhanced computer tomography, NECT non-enhanced computed tomography, MIP maximum intensity projection