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首页> 外文期刊>Seminars in Ultrasound, CT, and MRI >The visual pathway--functional anatomy and pathology.
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The visual pathway--functional anatomy and pathology.

机译:视觉通路-功能解剖学和病理学。

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摘要

Visual failure of any kind is a common clinical presentation and indication for neuroimaging. Monocular deficits should concentrate the search to the anterior (prechiasmatic) visual pathway. Bitemporal hemianopia suggests a chiasmatic cause, whereas retrochiasmatic lesions characteristically cause homonymous hemianopic defects. Quadrantanopias usually arise from lesions in the optic radiations. Disorders of visual perception can be broadly divided into "where" and "what" problems caused by lesions in the parietal and temporal lobes, respectively, and their associated white matter tracts. Visualization of the retrochiasmatic visual and visual association pathways is aided by diffusion tensor imaging.
机译:任何形式的视力衰竭都是神经成像的常见临床表现和指征。单眼缺陷应将搜索集中在前(视交叉前)视觉通路。双时相偏盲提示为嵌合体原因,而反斜向病变特征性地导致同名偏盲缺陷。象限性近视通常是由光辐射损伤引起的。视觉感知障碍可大致分为分别由顶叶和颞叶病变及其相关的白质束引起的“何处”和“何处”问题。扩散张量成像有助于视交叉后视觉和视觉关联途径的可视化。

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