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Effects of contrast media on the canine subarachnoid space.

Authors
Type
Published Article
Journal
Spine
Publication Date
Volume
3
Issue
1
Pages
31–35
Identifiers
PMID: 306132
Source
Medline

Abstract

This study reports an investigation of the canine arachnoid membrane using the scanning electronmicroscope (SEM) regarding the effects of contrast material on these structures. In the normal arachnoid membrane, two basic surface patterns were observed; one fenestrated and the other embossed with parallel fibers. Ventriculography was performed on 30 mongrel dogs divided into five groups: control, air, iophendylate, meglumine iothalamate, and Metrizamide. SEM study of the arachnoid membrane from basal cisterns showed no change after air ventriculography. After contrast agents were used, macrophages appeared and fenestrations became closed with fibrin-like substance.

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