两种肠道准备方法在多层螺旋CT小肠造影中的效果对比  

The effect of comparison of two methods of bowel preparation in the small intestine contrast of MSCT

作　　者：李燕奎[1] 吕访贤[1] 

机构地区：[1]广西壮族自治区玉林市第一人民医院放射科,广西玉林537000

出　　处：《实用医学影像杂志》2012年第4期242-244,共3页Journal of Practical Medical Imaging

摘　　要：目的在小肠造影CT检查中,探讨2种口服对比剂对小肠充盈扩张效果和CT采集时间的影响。方法本文分析了以2.5%等渗甘露醇溶液为对比剂49例和以非离子型碘剂稀释液为对比剂57例,用药量为1 500～2 000 mL,分别在30 min、45 min和60 min 3个时间点,应用螺旋CT并综合三维重建技术采集小肠造影数据,根据对比剂到达回盲部来评价小肠充盈效果。结果口服等渗甘露醇溶液的49例观测结果为:肠管充盈扩张较好,CT值改变不大,对比剂前端到达回盲部时间相对提前;口服非离子型碘剂稀释液的57例观测结果为:肠管对比清晰,CT值改变较大。结论小肠完全充盈的时间和效果,与应用对比剂类型有关,同时对比剂的量及服用的持续程度对小肠的充盈扩张非常重要。Objective To explore the expansion effect of small intestine and CT acquisition time of the two different contrast agents during in the contrast CT examination and the small intestine.Methods One hundred and six patients divided into two parts： 49 individuals（taking 2.5% isotonic mannitol solution） and 57 individuals（taking non-ionic iodine dilution）.The volume of each kind of solution was 1500~2000 mL and collected the data of small bowel imaging at 3 time points（30 min,45 min,and 60 min）.Three-dimensional reconstruction was used to dispose the data.Evaluation the filling effect of small intestine according to the time that contrast agent reaches the ileocecal.Results Forty-nine cases with oral isotonic mannitol solution shoued as follows： better filling expansion of bowel,little changed of CT value and relatively earlier of the time of contrast agents reaching the ileocecus.Another 57 cases have relative reverse results： clearly contrast of bowel,large changed of CT value.Conclusion The kinds of contrast agents we used is crucial to the time and effect of filling expansion of bowel;and the volume of contrast agents and the continuous of oral are also important influence factors.

关 键 词：体层摄影术 螺旋计算机 小肠 造影剂 治疗结果 

分 类 号：R816.5[医药卫生—放射医学] R574.5[医药卫生—临床医学]