Multi-channel pattern VEPs with full and half field stimulation: methods of interpretation and diagnostic evaluation.

IF 2.6 4区医学 Q2 OPHTHALMOLOGY

Documenta Ophthalmologica Pub Date : 2025-03-25 DOI:10.1007/s10633-025-10012-7

Dorothy A Thompson, Oliver R Marmoy, Joanne Cowe, Siân E Handley

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引用次数: 0

Abstract

Aim: To describe methods of evaluating multichannel full and half field pattern VEPs using the ISCEV VEP Standard montage.

Methods: The dependence of full field and half field pattern VEPs on retinal areas and cortical generators is reviewed and applied to the interpretation and evaluation of multichannel half field pattern VEPs.

Results: There are predictable differences in the trans-occipital distributions of components of monocular full, and half field, pattern-reversal and full field, onset-offset VEPs. In combination, the differing distribution and dependence of these components on foveal and macular fields can help to identify and localise chiasmal and retro-chiasmal dysfunction and distinguish this from trans-occipital distribution due to individual variations of cortical architecture. A decision tree synthesising published evidence and current practice is suggested to guide interpretation of trans-occipital VEP distributions.

Conclusion: The routine application of two additional lateral channels to acquire multichannel VEPs is quick, easy and adds clinical diagnostic value. The combination of full and half field pattern-reversal and fullfield, onset-offset VEPs can help evaluate chiasmal and retro-chiasmal visual pathway function, and minimise false positive interpretation of asymmetric VEP distributions, which may be due to cortical architecture or cranial anatomy alone.

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具有全场和半场刺激的多通道模式vep：解释和诊断评价方法。

目的：描述使用ISCEV VEP标准蒙太奇评价多通道全场和半场模式VEP的方法。方法：综述了全视场模式和半视场模式vep对视网膜区域和皮质发生器的依赖性，并将其应用于多通道半视场模式vep的解释和评价。结果：单眼全视场、半视场、模式反转和全视场、发病偏移vep的成分在枕部分布存在可预测的差异。综上所述，这些成分在中央凹和黄斑野上的不同分布和依赖性有助于识别和定位交叉和后交叉功能障碍，并将其与由于皮质结构的个体差异而导致的经枕分布区分开来。综合已发表的证据和当前实践的决策树建议指导跨枕VEP分布的解释。结论：常规应用两条附加外侧通道获取多通道vep快速、简便，具有较高的临床诊断价值。结合全视场和半视场模式反转以及全视场、发病偏移的VEP可以帮助评估交叉和后交叉视觉通路功能，并最大限度地减少不对称VEP分布的假阳性解释，这可能是由于皮质结构或颅解剖单独造成的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Documenta Ophthalmologica 医学-眼科学

CiteScore

3.50

自引率

21.40%

发文量

审稿时长

>12 weeks

期刊介绍： Documenta Ophthalmologica is an official publication of the International Society for Clinical Electrophysiology of Vision. The purpose of the journal is to promote the understanding and application of clinical electrophysiology of vision. Documenta Ophthalmologica will publish reviews, research articles, technical notes, brief reports and case studies which inform the readers about basic and clinical sciences related to visual electrodiagnosis and means to improve diagnosis and clinical management of patients using visual electrophysiology. Studies may involve animals or humans. In either case appropriate care must be taken to follow the Declaration of Helsinki for human subject or appropriate humane standards of animal care (e.g., the ARVO standards on Animal Care and Use).