多层螺旋CT预测胃肠间质瘤危险度的临床价值

The Value of Multi-slice CT Predicted the Risk Stratification of Gastrointestinal Stromal Tumor

目的 对照病理结果,探讨胃肠间质瘤多层螺旋CT表现与其危险度的相关性.方法 回顾性分析经病理证实胃肠间质瘤36例的多层螺旋CT表现,对照病理分级,采用SPSS17.0统计软件进行Fishers精确检验,分析胃肠间质瘤多层螺旋CT表现与GIST危险度有无统计学差异.结果 胃肠间质瘤多层螺旋CT表现：肿瘤大小、形态、生长方式、强化形式、肿瘤内坏死与GIST危险度有统计学意义（P〈0.05）.结论 胃肠间质瘤多层螺旋CT表现：肿瘤大小、形态、生长方式、强化形式、肿瘤内坏死可以预测其危险度.胃肠间质瘤浸润邻近结构及器官、周围淋巴结肿大和转移即提示肿瘤高危险度.

Objective To analyze the correlation between radiological features and risk stratification of GIST. Methods The CT images of 36 surgically treated patients with histologically and immunohistochemically confirmed GIST were retrospectively analyzed. The Fisherg exact tests were used to assess any possible relationships between risk stratification of GIST and turnout size, contour, growth status, enhancement pattern, degree of enhancement, presence of necrosis, calcificationsor and ulcer. Results The size, contour, growth status, enhancement pattern, presence of necrosis were all associated with risk stratification of GIST in statistical analyses （ P 〈 0.05 ）. Conclusion The CT features of GIST： the size, contour, growth status, enhancement pattern, presence of necrosis are helpful in identifying predictors the risk stratification of GIST. It suggestes that GIST is high-risk when GIST invasion of the mesentery or adjacent organs, lymphadenopathy and metastasis.