title: [Computerized tomography -- results in affections of the chiasm and visual pathway (author's transl)].
abstract: 272 cases with visual field defects were examined by CT and analysed. 78 patients showed a chiasmatic lesion, 45 patients a lesion of the optic tract or the lateral geniculate body and 136 patients a lesion of the optic radiation or the occipital cortex. 96% of the CT pictures were topographically corresponding to the known optic field defect. In more then 75% of the operated patients the nature of the CT lesion was confirmed. 10 cases were negative in CT and 3 false positive. Because of the high rate of exact topographic diagnosis CT should be the initial investigation in visual field defects. But the nature of a lesion has to be diagnosed with caution, taking into account the entire clinical picture.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001927:Brain Diseases / Q000150:complications / Q000000981:diagnostic imaging*; D001932:Brain Neoplasms / Q000000981:diagnostic imaging*; D003390:Cranial Nerve Neoplasms / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D005260:Female; D005829:Geniculate Bodies / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D009778:Occipital Lobe / Q000000981:diagnostic imaging; D009897:Optic Chiasm / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014786:Vision Disorders / Q000000981:diagnostic imaging / Q000209:etiology*; D014794:Visual Fields
vernacular_title: CT-Ergebnisse bei Affektionen des Chiasmas und der Sehbahn.