Drayer B P, Rosenbaum A E, Maroon J C, Bank W O, Woodford J E
AJR Am J Roentgenol. 1977 Mar;128(3):431-6. doi: 10.2214/ajr.128.3.431.
This study describes a new technique for the study of posterior fossa extraaxial cysts. Using metrizamide (Amipaque) CT cisternography, a rapid, simple, low morbidity method is now available which gives both anatomic and physiologic information that may obviate the need for pneumoencephalography and angiography. Two cases are reported; in a third the diagnosis was definitively excluded. By doing serial CT scans following the intrathecal introduction of metrizamide, data concerning the diffusion characteristics of these cysts as well as the accompanying hydrocephalus are obtained.
本研究描述了一种用于研究后颅窝轴外囊肿的新技术。使用甲泛葡胺（阿米培克）CT脑池造影术，现在有了一种快速、简单、发病率低的方法，它能提供解剖学和生理学信息，这可能无需进行气脑造影术和血管造影术。报告了两例病例；第三例明确排除了诊断。通过在鞘内注入甲泛葡胺后进行系列CT扫描，可获得有关这些囊肿的扩散特征以及伴随的脑积水的数据。
