Extravasation of intracranial aneurysm during computed tomography angiography: mimicking a blood vessel.
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.
Ryu
Chang Woo
CW
Department of Radiology, Inha University Hospital, Inha University College of Medicine, Incheon, Korea.
Kim
Sang Joon
SJ
Lee
Deok Hee
DH
Suh
Dae Chul
DC
Kwun
Byung Duk
BD
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