A Clinical Technique Using Hg197 for Determining the Blood-Cerebrospinal Fluid Barrier: A Preliminary Report
Abstract
Five psychiatric patients were given one millicurie of Hg197 intravenously; following this, lumbar and venous punctures were performed. The data suggest that Hg197 passes the blood-cerebrospinal fluid barrier. As indicated by this study and by the literature on the blood-cerebrospinal fluid barrier, radioisotope techniques may prove to be a valuable investigative method.
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