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Article
November 17, 1975

Computerized Axial TomographyUse in the Diagnosis of Dementia

JAMA. 1975;234(7):754-757. doi:10.1001/jama.1975.03260200070029
Abstract

COMPUTERIZED axial tomography (CT) of the brain is a new and important neuroradiologic technique developed by G. H. Hounsfield, a senior research electronic physicist working at EMI Laboratories, Middlesex, and James Ambrose, MD, a neuroradiologist at the Atkinson Morley's Hospital, London, England. The technique couples an x-ray tube with a computer and demonstrates the normal and pathologic anatomy of the brain in horizontal sections. The value of this technique in the diagnosis of brain abnormalities has been discussed by Ambrose1 and others. It is the purpose of this communication to emphasize the usefulness of CT in the diagnosis of behavioral abnormalities generally classified under the term "dementia."

Furthermore, we will demonstrate that it is now possible in many instances to investigate serious neurologic disorders without resorting to hospitalization, thereby avoiding dangerous neuroradiologic procedures.

THE EMI SCANNER  The patient is placed supine on an adjustable couch, and his head is

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