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Département des Radioisotopes, Service de Médecine (Drs. Verhas and Schoutens), the Service de Revalidation (Drs. Demol, Patte, Demeurisse, and Ganty), and the Service de Radiologie (Dr. Rakofsky), Hôpital Universitaire Brugmann, Brussels, Belgium.
A prospective brain scanning study using technetium 99m pertechnetate was performed in 84 patients with cerebral infarction. No correlation was found between vascular angiographic findings and the frequency of positive scans. A comparison with clinical motor and mental evaluation showed a good correlation between abnormal scans (58 percent) and poor initial test results. A half-life of 17 days characterized the time course of positive scans according to their density and abnormal radioisotopic uptake area.
Received for publication August 5, 1974.
Dr. Verhas' address is Département des Radioisotopes, Hôpital Universitaire Brugmann, 4 Place Van Gehuchten, 1020 Bruxelles, Belgium.
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