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December 1973

Plain Film Demonstration of Acoustic Nerve Tumors

Author Affiliations

From the Western Psychiatric Institute and the Falk Clinic, Presbyterian-University Hospital, University of Pittsburgh School of Medicine, Pittsburgh.

Arch Otolaryngol. 1973;98(6):414-416. doi:10.1001/archotol.1973.00780020428014

This paper illustrates the probability of indicating presence of eighth nerve tumors with conventional radiographic equipment found in any approved hospital. A knowledge of precise radiographic technique by both the radiologic technologist and the radiologist, as well as a detailed understanding of the basic anatomy, is required.

It is essential that the sharpest possible collimation of the x-ray beam be made by using a 5- to 7.6-cm diameter heavy cylinder at 91.4-to 101.6-cm distances without a Bucky diaphragm. By this means it is possible to demonstrate the intimate details required for diagnosis of lesions of the petrous pyramid and the eighth nerve canal. The presentation includes three proven cases to indicate how approximately 90% accuracy can be achieved by this method.

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