多层螺旋CT后处理技术在胃癌术前临床分期中的价值

目的：探讨多层螺旋CT（MSCT）在胃癌术前临床分期中的价值。方法对该院2011年4月至2012年8月收治的43例经胃镜及术后证实的胃癌患者术前进行MSCT扫描，所得图像在后处理工作站进行后处理，观察胃癌病变情况、胃周淋巴结大小及远处转移，按国际统一的TNM分期法进行术前分期，其结果与术后病理TNM分期对照。结果 MSCT对胃癌T分期的总准确率为83.7%（36/43）；对N分期的总准确率为72.1%（31/43）；对M分期的总准确率为93.0%（40/43）。结论利用MSCT的各种图像后处理技术能提高胃癌术前TNM分期的准确率，对外科制订合理的治疗方案有较高价值。

Value of post-processing techaiques of multi-slice spiral CT in the preoperative staging of gastric carcinoma

Objective To explore the value of multi-slice spiral CT（MSCT） in the preoperative staging of gastric carci-noma. Methods MSCT was performed in 43 patients with gastric carcinoma diagnosed by biopsy before operation in this hospital from April 2011 to August 2012 ,and the obtained images were postprocessed by post-processing station to observe gastric neo-plastic lesion,sizes of lymph nodes and distant metastasis,and phased preoperatively according to the world-wide TNM staging method,the results of which were compared with post-operatively pathological TNM staging method. Results The accuracy of MSCT was 83.7%（36/43） in T stage,72.1%（31/43） in N stage and 93.0%（40/43） in M stage. Conclusion Various images post-processing technology of MSCT can improve the accuracy of pre-operative TNM staging of gastric carcinoma,and it has higher value in formulating surgical therapeutic schedule..