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Fractional Encephalography,ally by injection of moderate amounts of a gaseous contrast medium, usually air. The study is “fractional,” i.e. the air, the volume of which is less than that of the ventricular system and the subarachnoid space, fills the different portions of these structures separately; the air is directed by su逗留 发表于 2025-3-26 16:52:48
Positive-Contrast Ventriculography,28. In 1964 P. suggested employing iodate emulsions which diffuse through the CSF. With this technique (which the author named panventriculography) all parts of the ventricular system can be visualized simultaneously.