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Charles M. Strother, MD; Joseph F. Sackett, MD; Richard E. Appen, MD

Arch Neurol. 1977;34(11):713-714.

Abstract
• When the clinical distinction between lesions of the optic nerves or the chiasm is not apparent, computed tomographic scans should be performed at both 0^° and 25^° or 35^° to the orbital-meatal line (Reid's baseline). The former plane is preferable for the demonstration of the optic nerves or orbital structures, while the latter allows superior visualization of perichiasmatic structures.

Author Affiliations
From the Departments of Radiology-Neuroradiology Section (Drs Strother and Sackett), Neurology (Drs Strother and Appen), and Ophthalmology (Dr Appen), University of Wisconsin Center for Health Sciences, Madison.

Footnotes
Accepted for publication May 12, 1977.

Reprint requests to Department of Radiology, University of Wisconsin Medical Center, 1300 University Ave, Madison, WI 53706 (Dr Strother).