两种口服造影剂在CT小肠造影中的对比研究

Study and compare two oral contrast agents in CT enterography of small intestines

目的对比两种口服造影剂在多层螺旋CT小肠造影中的应用。方法 44例临床患者(40～60岁)随机分为两组,分别使用常规法(碘伏醇水溶液)和改良法(甘露醇+碘伏醇水溶液)进行多层螺旋CT全腹扫描。按影像学解剖将小肠分为6段(1段为十二指肠,2段为空肠近端,3段为空肠远端,4、5、6段为回肠),用双盲法对两组图像中小肠肠腔充盈度进行评价及统计学分析。结果改良法对2、3、4段小肠肠腔充盈度均优于常规法,差异有统计学意义(P<0.05);对1、5、6段小肠肠腔充盈度,两法差异无统计学意义(P均>0.05)。结论改良法对空肠及回肠上端肠腔充盈效果优于常规法,口服造影剂改良法的研究对多层螺旋CT小肠造影检查有一定意义。

Objective To compare two oral contrast agents in muhi-slice spiral CT enterography of small intestines. Meth- ods Fourty-four patients （40-60 years old） were randomly divided into two groups and underwent conventional or opti- mized methods for multi-slice spiral CT total abdominal plain scan. According to the anatomy imaging divided small intes- tine into 6 sections, with the double blind method on 2 groups of images in the intestinal lumen of filling degree evaluation and statistical analysis. Results Optimized method was superior to conventional method in the expansion degree of the 2, 3 and 4 segments of the small intestine （P〈0.05）. There was no significant differences between two groups of conventional or optimized methods on the other segments of the small intestine （P〉0.05）. Conclusion Improvement on jejunal and upper ileal intestinal cavity filling effect is better than the routine method, modified method of oral contrast agent for multi-slice spiral CT angiography has certain significance of small intestine.