[Cerebral lesions in attacks of transient ischemia. Results of clinical studies of microcirculation with perfusion brain scintigraphy (PBS)].

35 patients with supratentorial ischemic lesions were studied with the Perfusion Brain Scanning; 20 of them suffered for TIAs while 15 had Completed Strokes. In all cases a damage of the arteriolar-capillar bed were demonstrated. These findings favour the thesis that the focal supratentorial ischemic attacks are related to an irreversible lesion of the brain microcircle. The very high sensitivity in the detection of the small cerebral lesions and the diagnostic value of the PBS are underlined.