Solti-Bohman L G, Magaram D L, Lo W W, Wade C T, Witten R M, Shimizu F H, McMonigle E M, Rao A K
Radiology. 1984 Feb;150(2):403-7. doi: 10.1148/radiology.150.2.6691095.
Gas-CT cisternography is a simple and accurate procedure for detection of small acoustic nerve tumors. Review of one of the largest series in a single institution found that 98% of the studies clearly showed the presence or absence of tumors. The diagnostic pitfalls of the small number of studies in which significant errors were made, or could have been made, are discussed. It is concluded that certain situations appear to call for extra caution: (a) when the filling defect does not show a convex surface, (b) when the amount of cisternal gas is marginal, and (c) when the canal is small. In such situations careful attention to details and healthy skepticism may avert potential errors.
气体脑池造影术是一种用于检测小型听神经瘤的简单而准确的方法。对单一机构中规模最大的系列研究之一进行回顾发现，98%的研究清晰显示了肿瘤的存在与否。文中讨论了少数出现重大错误或可能出现重大错误的研究的诊断陷阱。得出的结论是，在某些情况下似乎需要格外谨慎：(a) 当充盈缺损未显示凸面时；(b) 当脑池气体量处于临界值时；(c) 当内耳道较小时。在这些情况下，仔细关注细节并保持合理怀疑态度可能会避免潜在的错误。
