超声与CT在肝脏囊型包虫病与非寄生虫性囊肿鉴别中的比较

Differential Diagnosis of Liver Echinococcosis and Simple Cysts:Compared with Ultrasound and Computed Tomography

目的:分析囊型包虫病的CT以及超声的影像学特征以及联合诊断的效能,以减少对于CL及Ⅰ型包虫囊肿误诊率。方法:回顾性分析自2008年1月～2010年9月在我院行CT和超声检查的包虫病患者22例,肝脏单纯囊肿25例,分析其表现并进行比较。结果:CT检出36个病灶,超声检测出34个病灶,单纯囊肿组和包虫组病灶分布及形态等无明显差别,22例超声显示位于包虫囊肿底部可以随体位运动棘球呦砂样改变,显示囊肿壁不规则增厚3例,病灶周围胆管扩张2例,CT显示包虫囊肿壁钙化5例,病灶周围胆管扩张3例。结论:联合CT和超声学检查可以帮助提高CEI及CL型包虫囊肿的诊断率。

Objective： To analyze the ultrasonography and computedtomography（CT） imaging characteristics of Cystic echinococcosis and their combination value in therapy,so as to reduce misdiagnosis rate of Cystic echinococcosis.Methods： 22 patients with Cystic echinococcosis and 25 patients with liver simple cyst were performed CT and ultrasonography between January 2008 and September 2010 in our hospital.The ultrasonography and CT scan findings were retrospectively analyzed and compared.Results： 36 focuses were detected out by CT and 34 focuses were detected out by ultrasonography.There were no difference in distribution and shape of focus between liver echinococcosis and simple cysts group.Ultrasonography detection showed that 22 cases appeared layering and movable echogenic hydatid sand,visible in the deep part of the cyst that moved along with patients＇ changing position,3 cases had focal or segmental wall thickening,and 2 cases had cholangiectasis around the focus.CT imaging showed calcification of the pericyst in 5 cases,and cholangiectasis around the focus in 3 cases.Conclusion： Combination use of ultrasonography and computedtomography（CT） can increase diagnosis rate of liver echinococcosis in stage CEI or CL.