Correlative aids in B‐scan echoencephalography

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Abstract
Correlative techniques of B-mode scanning are presented that proved clinically useful in interpreting the B-mode echoencephalograms of the illustrative cases. A ribbon simulating the path of the probe was placed on the head of the patient and photographed with a Polaroid camera. The photograph was placed together with the matching B-mode echoencephalogram under a plastic sheet protector. Review and interpretation of B-mode echoencephalograms were facilitated in evaluating the illustrative cases of patients proved surgically to have an astrocytoma and a cerebral abscess. Use of proportional dividers has proved a simple and inexpensive method of comparing an unknown echo source seen in the B-scan echoencephalogram to the corresponding cerebral structure of a necropsy specimen.

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