✓ A new method for determining regional cerebral blood flow is reported which utilizes K-shell fluorescence and thus avoids administration of radioactive materials to a patient. Due to its inherent laminographic features, K-shell fluorescence escapes interference from scalp and skull, while giving a true demonstration of regional flow. It is applicable to either clearance time or transit time techniques. The tracer can be administered either by inhalation or intra-arterial injection. The present study demonstrates its feasibility for use in both animals and humans.
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Moody et al. (1971) studied this question.
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