Stroke & Vascular Disorders
Cardiovascular intervention: neurologic complications
Apr. 25, 2024
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Intraventricular hemorrhage: pre- and post-intervention digital subtraction angiography
Left image: a lateral digital subtraction angiography image in the arterial phase of contrast injection in the right common carotid artery shows ectasia of the anterior falcine artery arising from the ophthalmic artery (arrow), which gives rise to a high-flow arteriovenous shunt as it connects directly to the superior sagittal sinus (arrowhead). Early venous drainage, which is opacification of the veins during the arterial phase of contrast administration, is the hallmark of an arteriovenous shunt. Right image: post-procedure, the shunt is gone, and there is no early venous drainage. (Contributed by Kristine Ann Blackham MD.)