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Computed tomography in the evaluation of the optic chiasm.

作者信息

Kline L B, Vitek J J, Acker J D

出版信息

Surv Ophthalmol. 1983 May-Jun;27(6):387-96. doi: 10.1016/0039-6257(83)90196-0.

DOI:10.1016/0039-6257(83)90196-0
PMID:6879431
Abstract

Computed tomography (CT) is the procedure of choice for initial evaluation of patients suspected of having chiasmal or perichiasmal lesions. Over 1000 patients were examined with high resolution CT, using axial and coronal scans, contrast enhancement, multiplanar reformations, and, when indicated, metrizamide CT cisternography. The normal anatomic appearance of the chiasm and neighboring structures are: (1) symmetric or asymmetric enlargement of the chiasm; (2) areas of abnormal density, without or with contrast enhancement, in the chiasm or perichiasmal region; (3) alteration of the suprasellar cistern; and (4) distortion of the anterior-inferior third ventricle.

摘要

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