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目的测量并确定胃左淋巴结的区域范围。方法对124例食管癌或贲门癌患者手术时在胃左动脉根部放置银夹。模拟机下采取放疗体位于0°及90°机架摄片,测量胃左淋巴结的上下界、正位左右界、侧位前后界。应用SAS 8．02软件计算分析其分布,并且寻找包及不同百分频率患者的胃左区域的最小面积各边界的数据。结果通过Shapiro-Wilk、Kolmogorov-Smirnov、Cramer-von Mises、Anderson-Darling四种方法检验,总体在各边界有正态分布的可能性,男女在胃左淋巴结的分布趋势上是一致的,尽管具体数据有所差别。皮尔逊分析显示胃左淋巴结的边界与身高、体重、椎体的宽高无相关性。通过计算获得了相应的包及100%、95%、90%、85%的患者的胃左区域的各边界的数据。结论要完全证实胃左区域的正态分布尚需扩大病例数。目前条件下,胃左淋巴结的定位可参考结果中的数据。
Objective To measure and determine the regional extent of gastric left lymph nodes. Methods 124 cases of esophageal or gastric cardia cancer surgery placed in the root of left gastric artery placed silver clip. Under the simulator, the radiotherapy body was taken at 0 ° and 90 ° frame radiographs to measure the upper and lower bounds of the left gastric lymph node, the right and left bounds, and the lateral and anterior bounds. SAS 8.02 software was used to calculate and analyze the distribution and find the data of the minimum area and the area of the left gastric area of the patients with different percentages of frequency. The results were tested by Shapiro-Wilk, Kolmogorov-Smirnov, Cramer-von Mises and Anderson-Darling methods. The overall likelihood of normal distribution at each boundary was consistent with the distribution trend of gastric left lymph nodes in both men and women The data is different. Pearson analysis showed that the border of the left gastric lymph node had no correlation with height, weight and vertebral height. The corresponding package and the data for each border of the left gastric region of 100%, 95%, 90%, 85% of the patients were obtained by calculation. Conclusions To completely confirm the normal distribution of the left gastric area need to expand the number of cases. Under the current conditions, the location of the left gastric lymph nodes can refer to the data in the results.