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Few CT Scan Abnormalities Found Even in Neurologically Impaired Learning Disabled Children

Martha Bridge Denckla is chief of the Autism and Behavioral Disorders Section, Developmental Neurology Branch of the National Institute of Neurological and Communicative Disorders and Stroke, National Institutes of Health, and associate clinical professor of neurology at the Johns Hopkins University School of Medicine. She received her MD in medicine from Harvard Medical School, Address: Dr. Denckla, Room 820, Federal Building, 7550 Wisconsin Avenue, Bethesda, Maryland 20205.

Marjorie LeMay, MD

Marjorie Lemay is associate professor of radiology at Harvard University, and health services radiologist at Brigham and Women's Hospitals. She received her MD in medicine from the University of Kansas.

Catherine A. Chapman, BS

Catherine A. Chapman is a third-year medical student at the University of Miami. She received her BS in psychology from Northwestern University.

Computerized tomography (CT) scans without enhancement were performed on 32 children attending a learning disabilities clinic. These 32 were selected because they had subtle lateralizing neurological hemisyndromes (16 right, 16 left). Clinical readings of 25 scans by two independent radiologists "blind" to neurological or historical facts yielded only 5 (20%) concordant abnormal readings. Measurements of ventricular size in all 32 scans yielded even fewer (only 1) judged abnormal. Meaningful hemispheric asymmetries were difficult to define in the present study.

Journal of Learning Disabilities, Vol. 18, No. 3, 132-135 (1985)
DOI: 10.1177/002221948501800304


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