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. 1979 Aug 15;18(2):81.
doi: 10.1007/BF00344827.

The Evans ratio for ventricular size: a calculation error

L M Zatz

The Evans ratio for ventricular size: a calculation error

L M Zatz. Neuroradiology. .

Abstract

The suggestion that the Evans ratio, the ratio of the transverse diameter of the anterior horns of the lateral ventricles to the internal diameter of the skull, was a more significant quantity than the ventricular measurement alone was based on a calculation error. The value of this ratio and other such ratios involving linear skull measurements is unproven.

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