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小肠是胃肠道最长的器官,因其走行弯曲,肠管常互相重叠,传统的胃肠道和内镜检查单纯地观察消化道腔内结构,尚不能很好显示肠壁和腔外结构。螺旋CT具有快速扫描和三维后处理能力,能清晰反应肠壁和肠腔外的病变。新的影像技术口服大剂量5%等渗甘露醇螺旋CT小肠造影(spiral CT enterography,SCTE)能使小肠充盈良好,对肿瘤的显示、衬托满意,与临床诊断符合率较传统CT高。SCTE是一种简便、安全、非侵袭性、有效评价小肠肿瘤的方法,能明显提高肿瘤的检出率。
The small intestine is the longest organ of the gastrointestinal tract, because of its bending curve, intestines often overlap each other, traditional gastrointestinal and endoscopic simple observation of the digestive tract cavity structure, the intestinal wall and extraluminal structure is not yet well displayed. Spiral CT with rapid scanning and three-dimensional post-processing capacity, can clearly reflect the intestinal wall and intestinal lesions outside. The new imaging technology oral large dose of 5% isotonic mannitol spiral CT small bowel imaging (spiral CT enterography, SCTE) can make the small intestine filling well, the tumor display, set off satisfaction, and the clinical diagnosis of coincidence rate higher than the traditional CT. SCTE is a simple, safe, noninvasive and effective method for evaluating small bowel tumors, which can significantly improve the detection rate of tumors.