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Donald Lee, MB; Allan Fox, MD; Fernando Vinuela, MD; David Pelz, MD; Catherine Lau, BScN; Alan Donald, PhD; Harold Merskey, DM

Arch Neurol. 1987;44(1):30-31.

Abstract
• As part of the University of Western Ontario Dementia Study, the computed tomographic brain scans of 16 patients were reviewed by three neuroradiologists. The size of the ventricles and sulci were rated using a six-point scale. Infarction and white matter changes were assessed in accordance with specified criteria. The interobserver correlations in this small series were statistically significant in 17 of 20 items, and good or acceptable for infarction, leuko-araiosis, and ventricular size. It is suggested that the use of rigid criteria for the definition of abnormality helps to promote interobserver agreement.

Author Affiliations
From the Department of Diagnostic Radiology, University Hospital (Drs Lee, Fox, Vinuela, and Pelz), the Department of Education and Research, London Psychiatric Hospital (Ms Lau and Dr Merskey), and the Department of Epidemiology and Biostatistics, University of Western Ontario (Dr Donald), London, Ontario.

Footnotes
Accepted for publication Sept 17, 1986.

Reprint requests to Department of Education and Research, London Psychiatric Hospital, 850 Highbury Ave, PO Box 2532, Terminal "A," London, Ontario N6A 4H1, Canada (Dr Merskey).

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