Ischaemic supratentorial stroke: angiographic findings in patients examined in the very early phase

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Abstract
Eighty patients were studied by angiography within 6 h of an ischaemic stroke. Angiography was carried out with digital equipment and was usually limited to the vascular territory responsible for the neurological deficits. In 12 of 19 patients with internal carotid occlusion, the contralateral side was also studied. The angiographic abnormalities were classified as extracranial, intracranial, and combined extra and intracranial. The data show a high incidence (66%) of occlusive pathology of intracranial arteries, either isolated or associated with a significant presence of a potential embolic source (85%), and a high incidence of carotid occlusions located at the cervical segment (8 of 19). These observations suggest that most strokes are occlusive in origin.