Extravasating contrast material on angiography following carotid angioplasty and stenting: not necessarily subarachnoid hemorrhage.

Abstract

We describe a case of asymptomatic extravasation of iodinated contrast material into the sulci on digital subtraction angiography following carotid angioplasty and stenting resulting in sulcal hyperdensity on computed tomography (CT). We believe the mechanism for this observation is hyperperfusion injury and that in the absence of any associated clinical signs, it should not be considered alarming for subarachnoid hemorrhage.

• Authors: Pranshu Sharma, Alexandre Y Poppe, Muneer Eesa, Nikolai Steffanhagan, Mark Hudon, William Morrish
• Journal: Journal of neuroimaging : official journal of the American Society of Neuroimaging (J Neuroimaging) Vol. 20 Issue 2 Pg. 180-2 (Apr 2010) ISSN: 1552-6569 [Electronic] United States
• PMID: 19021827 (Publication Type: Case Reports, Journal Article)

Chemical References

• Contrast Media
• Iodine

Topics

• Angioplasty (adverse effects)
• Carotid Stenosis (complications, diagnostic imaging, surgery)
• Cerebral Angiography (adverse effects)
• Contrast Media (adverse effects)
• Extravasation of Diagnostic and Therapeutic Materials (diagnostic imaging, etiology)
• Humans
• Iodine (adverse effects)
• Male
• Middle Aged
• Subarachnoid Hemorrhage (diagnostic imaging, etiology)
• Treatment Outcome