Abstract
The purpose of this report is to analyse the relationship between the stenosis of the carotid bifurcation and the location of infarction in patients with stroke. CT scans of 22 patients with the stenosis of the carotid bifurcation were examined out of 204 cases of acute stroke.
In 8 patients with single stenosis of the carotid bifurcation, 7 (88%) had small infaction of basal ganglia on CT scan. Three of them showed enhancement by contrast medium.
In 14 patients with tandem stenotic lesions of the extracranial and intracranial arteries, 7 (50%) showed also small low density areas of basal ganglia. Cortical infaction was found in only one case which had severe stenosis of middle cerebral artery.
In these patients with the small low density of basal ganglia, the pathogenesis of infarction is suspected to be occlusive or stenotic lesions of the perforating arteries.
The stenosis of the carotid bifurcation is supposed to be incidental lesion in these cases.
