MSCT小肠病变双期增强对比剂的应用探讨  

Investgation of the Application of Contrast Medium with Double Phase Enhancement of MSCT in Small Intestinal Diseases

作　　者：罗敏[1] 胡道予[1] 王秋霞[1] 宋金梅[1] 

机构地区：[1]华中科技大学同济医学院附属同济医院放射科,武汉430030

出　　处：《放射学实践》2007年第6期626-628,共3页Radiologic Practice

摘　　要：目的：探讨MSCT小肠病变增强所用对比剂的临床用量及用药方法。方法：搜集2006年3月-2007年5月经手术或病理证实的小肠病变126例,其MSCT采用开始注射对比剂后分别延时30s及60s进行动、静脉双期增强扫描,分3组（每组42例）使用3种不同的对比剂（优维显、典比乐和欧乃派克）,总量均为80ml,高压注射流率为3.0ml/s,对其增强效果和不良反应及诊断正确率进行回顾性分析。结果：3种不同对比剂增强效果无明显差别,对小肠病变的诊断正确率为95.2%。动脉期均能显示肠系膜上动脉3级以上分支且清楚的显示小肠病变的具体病灶部位,与肠管的关系及与其供血动脉之间的关系。结论：MSCT小肠病变双期增强使用80ml对比剂,流率3.0ml/s能很好地显示小肠病变,可减少对比剂的不良反应,减少肾毒性。Objective：To investgate the clinical amount and medication method of constrast medium with double phase enhancement of MSCT in small intestinal diseases. Methods： All the diagnosed 126 cases of small intestinal diseases proved by operation or pathology were collected from March 2006 to May 2007, Artery and vein enhancement scan were performed in 30s and 60s delayed after receiving contrast medium by MSCT,with all the cases developed into three groups （each group had 42 cases）,one group was initially performed with ultravist, one with lopamidol, and one with omnipaque, The volume dose of contrast medium was 80ml,jet efflux rate was 3.0ml/s with high pressure, the enhancement effect and the diagnositic rate of correct were retrospectively analyzed. Results;The effect of enhancement with the three above mentioned contrast medium had no evident difference, the diagnostic rate of correct in small intestinal diseases was 95.2% , Artery phase image clearly showed the above tri-division of superior mesenteric artery and the position of the affection, the relationship between the affection and its forming artery and the intestinal canal. Conclusion： Using 80ml contrast medium of volume dose,3.0ml/s of jet efflux rate with high pressure in the double phase enhancement of MSCT in diagnosing small intestinal diseases could clearly demonstrate the affection, which could reduce the secondary effect of contrast medium and renal toxicity.

关 键 词：体层摄影术 X线计算机 对比剂 小肠 

分 类 号：R816.5[医药卫生—放射医学]