Occlusion of the extracranial internal carotid artery in the acute stroke; angiographic findings within 8 hours

We studied by angiography 80 patients within 6 hours from the onset of symptoms of supratentorial ischaemic stroke. Occlusion of the internal carotid artery in the extracranial segment was found in 19 patients, at the bifurcation in 11 and at the cervical level in 8