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March 29, 1976

Computerized Axial Tomography

Author Affiliations

University of Michigan Medical Center Ann Arbor

JAMA. 1976;235(13):1326-1327. doi:10.1001/jama.1976.03260390012010

To the Editor.—  The article, "Computerized Axial Tomography: Use in the Diagnosis of Dementia" by Menzer et al (234:754, 1975) reviewed five cases of diffuse or focal cerebral lesions demonstrable by CT scanning. Two of the five patients had an electroencephalogram; one of these "disclosed bilateral slow-wave activity." From these data the authors conclude, "It is likely that CT will reduce the use of the EEG as a screening tool for patients with neurological complaints other than seizure disorders."There is no doubt the CT scan has supplanted other neuroradiological investigative techniques1,2 and from early reports appears to be a powerful new tool. However, we are presently reviewing several cases of adult patients with dementia secondary to diffuse degenerative cerebral changes and carcinomatoses, and children with both focal and diffuse cerebral problems who have had normal CT scans with focal or diffuse electrographic disturbances.Furthermore, the frequent need for