多层螺旋CT对胃肠道间质瘤的价值分析  

Value analysis of Multi-Layer spiral CT to GIST.

作　　者：程祝忠[1] 许国辉[1] 任静[1] 杨宇洁[1] 曹英[1] 何韧[1] 席晓秋[1] 

机构地区：[1]四川省肿瘤医院影像科,四川成都610041

出　　处：《四川医学》2010年第6期850-852,共3页Sichuan Medical Journal

摘　　要：目的分析35例胃肠道间质瘤(GIST)的多层螺旋CT(MSCT)表现,评价MSCT对该病的临床应用价值。方法回顾性分析35例GIST的临床、影像及病理资料。结果肿瘤位于胃部18例,小肠10例,大肠3例,肠系膜4例。恶性GIST20例,主要CT表现:肿块直径≥5cm 17例,12例瘤体内有低密度坏死,肿块边缘分叶状5例。良性15例,肿块直径<5cm,边界清晰,密度均匀。CT检查的敏感性为100%,定位准确率为91.4%(32/35),定性准确为85.7%(30/35)。结论 GIST有一定的影像特点。CT可作为GIST的常规检查方法,对GIST的准确定位、定性的判断,指导临床治疗和估计预后有重要价值。Objective Analyze the manifestations of MSCT of 35 cases of GIST and evaluate the clinic application value of MSCT to this disease.Methods Retrospectively analyze the clinical,imaging and pathological data of 35 cases of GIST.Results 18 cases have the tumor in the stomachs,10 in the small intestines,3 in the large intestines and 4 in the mesenterium.There are 20 cases of malignant GIST with the major CT manifestations being：17 cases have the lump diameter≥5cm,12 cases have low-density necrosis inside their tumors and 5 cases have lobulated lump edge.There are 15 benign cases with the lump diamet 5cm,clear edge and uniform density.The sensibility of CT examination is 100%,the positioning accuracy is 91.4%（32/35） location accuracy and nature determination accuracy is 85.7%（30/35）.Conclusion GIST has certain imaging characteristics.CT can be used as the routine examination method of GIST,which has significant value in accurately positioning GIST,determining its nature,guiding clinic treatments and estimating the prognosis.

关 键 词：胃肠道间质瘤 体层摄影术 X线计算机 

分 类 号：R735[医药卫生—肿瘤]