Foreign Body Emboli Following Cerebral Angiography

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Abstract
Cerebral angiography has proved to be invaluable as a diagnostic procedure for a great variety of diseases of the brain. Experience has indicated the procedure to be quite safe, particularly with the advent of less toxic injection media, so that a very low incidence of damage attributable to this procedure is reported from most clinics. In rare instances in which injury from this procedure is suspected, this has been attributed to hemorrhage at the site of puncture, to hypersensitivity to the injection media, to thrombosis with partial or complete occlusion of the carotid artery, or to embolization into the brain from such a thrombus.1 This report concerns the finding of foreign bodies in the brains of 5 individuals following cerebral angiography, under circumstances which are interpreted as indicating that they were introduced accidentally during the procedure. These foreign bodies are thought to be minute cotton fibrils derived from gauze

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