Onik G, Cosman E R, Wells T H, Goldberg H I, Moss A A, Costello P, Kane R A, Hoddick W I, Demas B
Allegheny-Singer Research Institute, Pittsburgh, PA 15212-9986.
Radiology. 1988 Feb;166(2):389-94. doi: 10.1148/radiology.166.2.3275980.
Forty computed tomography (CT)-assisted aspirations performed with only hand guidance were prospectively compared with 40 performed with a CT body-stereotaxic system. Although there was no statistically significant difference in lesion size and path length between the two groups, use of stereotaxis compared with hand guidance decreased by 75% the number of needle manipulations required to place a needle within a lesion. With the stereotaxic method, only 43 needle manipulations were required to confirm a needle placement in 40 lesions, with no lesion requiring more than two attempts. Use of stereotaxis decreased the number of localization scans by 80% and biopsy time by 50%. It is concluded that CT-guided needle placements with hand guidance are often inaccurate and, unless the lesion is large, require multiple needle manipulations to place a needle within the lesion. Stereotaxis-guided biopsies, on the other hand, decrease radiation exposure, biopsy time, and trauma from multiple needle punctures.
前瞻性地比较了仅用手动引导进行的40例计算机断层扫描（CT）辅助穿刺与使用CT体部立体定向系统进行的40例穿刺。尽管两组之间在病变大小和进针路径长度上没有统计学上的显著差异，但与手动引导相比，使用立体定向技术将将针放置在病变内所需的针操作次数减少了75%。采用立体定向方法，在40个病变中确认针的放置仅需43次针操作，没有一个病变需要超过两次尝试。使用立体定向技术使定位扫描次数减少了80%，活检时间减少了50%。得出的结论是，手动引导的CT引导下针穿刺往往不准确，除非病变较大，否则需要多次针操作才能将针放置在病变内。另一方面，立体定向引导下的活检减少了辐射暴露、活检时间以及多次针刺造成的创伤。
