title: Extravasation of intracranial aneurysm during computed tomography angiography: mimicking a blood vessel.
abstract: Two cases of contrast media extravasation of a ruptured aneurysm during computed tomography angiography (CTA) are described. The contrast media extravasation appeared as a highly attenuated twisted ribbon-like structure originating from the aneurysmal dome, and this mimicked a vascular structure. Because rebleeding of an aneurysm is accompanied by disastrous consequences, it is important to understand the imaging feature of active bleeding on CTA.
authors.affiliation: Department of Radiology, Inha University Hospital, Inha University College of Medicine, Incheon, Korea.
authors.forename: Chang Woo
authors.initials: CW
authors.lastname: Ryu
authors.forename: Sang Joon
authors.initials: SJ
authors.lastname: Kim
authors.forename: Deok Hee
authors.initials: DH
authors.lastname: Lee
authors.forename: Dae Chul
authors.initials: DC
authors.lastname: Suh
authors.forename: Byung Duk
authors.initials: BD
authors.lastname: Kwun
mesh_terms: D000328:Adult; D017542:Aneurysm, Ruptured / Q000000981:diagnostic imaging*; D002533:Cerebral Angiography; D005119:Extravasation of Diagnostic and Therapeutic Materials / Q000000981:diagnostic imaging*; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed