Four-Dimensional Computed Tomography Angiography Demonstrating a Ruptured Basilar Artery Aneurysm Causing Anterior Cerebral Circulation Arrest
SourceJournal of Stroke and Cerebrovascular Diseases, 25, 9, (2016), pp. e146-7
Article / Letter to editor
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Journal of Stroke and Cerebrovascular Diseases
SubjectRadboudumc 0: Other Research RIHS: Radboud Institute for Health Sciences; Radboudumc 16: Vascular damage RIHS: Radboud Institute for Health Sciences; Radboudumc 9: Rare cancers RIHS: Radboud Institute for Health Sciences
A 61-year-old woman suffered a pronounced subarachnoid hemorrhage. Conventional computed tomography angiography (CTA) showed no enhancement of the intracranial vasculature, whereas there was normal contrast enhancement of bilateral external carotid artery branches. Subsequent four-dimensional computed tomography angiography (4D-CTA) demonstrated active contrast leakage out of a ruptured basilar tip aneurysm, whereas there was no enhancement of the anterior circulation at any time point, consistent with intracranial anterior circulation arrest. This case illustrates that 4D-CTA is superior to conventional CTA for the evaluation of intracranial flow dynamics and delayed intracranial vascular contrast filling.
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