Correlation of CAT scan and visual field defects in vascular lesions of the posterior visual pathways.

Publisher Website
Google Scholar
Abstract
Patients (39) with various types of isolated homonymous hemianopias resulting from ischemic lesions in the posterior parts of the cerebral hemisphere were examined by CAT [computed assisted tomography] scanning. Most had localized low density lesions within the distribution of the posterior cerebral artery. The location of these lesions (deduced from a separate anatomical study of postmortem brain cut in the plane of the CAT scanner) was correlated with visual field defects. Lesions giving rise to quadrantic defects were smaller than those causing total hemianopias; lower quadrantic defects tended to occur in superior cuts and vice versa. Macular sparing was associated with survival of the occipital pole in some instances. Bilateral cases had a higher prevalence of associated defects.

This publication has 12 references indexed in Scilit: