目的:评价口服2.5%等渗甘露醇肠道准备后腹部CT扫描的价值。方法:对来我院就诊的临床要求作腹部CT扫描患者的临床资料进行分析。结果:所有患者口服后甘露醇1～1.5小时达到满意充盈,均顺利完成检查,检查过程中和检查后均无不良反应及并发症。CT表现为肠腔呈适度扩张、充盈密度均匀、气粪影干扰较少,如同小肠造影充盈相;肠袢间关系显示清晰;未见因充盈不到位所致的假性团块影。所有患者肠壁清晰可见,肠袋变平变浅,肠间脂肪间隙均显示较好。80例患者中,22例CT扫描未见异常,16例腹部肿块,39例肠道炎症,3例阑尾区脓肿。结论:采用2.5%等渗甘露醇肠道准备后腹部CT扫描,简单易行,肠管充盈时间短,腹腔脏器间衬托良好,病灶检出率明显提高,安全可靠,易被患者接受,值得进一步研究。 OBJECTIVE: To evaluate the value of post-abdominal CT scan of oral 2.5% isotonic mannitol. Methods: The clinical data of patients who underwent CT scan in our hospital were analyzed. Results: All patients were given oral mannitol 1 to 1.5 hours to achieve satisfactory filling, were successfully completed the examination, during the examination and after the examination without adverse reactions and complications. CT showed moderate expansion of the intestine, filling density, gas fecal shadow interference less, as the filling phase of small intestine; intestinal bowel showed a clear relationship between; not seen due to filling in place due to the pseudo-mass shadow. All patients clearly visible intestinal wall, bowel flattening shallow, intestine fat gap showed better. Among the 80 patients, no abnormalities were found in CT scan of 22 cases, 16 cases of abdominal mass, 39 cases of intestinal inflammation and 3 cases of appendix abscess. CONCLUSION: The CT scan of intestine with 2.5% isotonic mannitol preparation is simple and easy, the filling time of the intestine is short, the contrast between the abdominal organs is good, the detection rate of the lesion is obviously improved, the safety is reliable, and it is easy to be accepted by the patient and it is worth further the study.