口服枸橼酸铁铵在磁共振胰胆管成像中的价值

目的　研究枸橼酸铁铵作为胃肠道阴性对比剂对改善磁共振胰胆管成像 (MRCP)质量的价值。方法　 6 0例受检者归入本次研究 ,其中 30例受检者口服枸橼酸铁铵溶液 (内含 6 0 0mg枸橼酸铁铵 )后进行MRCP检查 ,30例则直接进行MRCP检查 ,均采用GE 1 5TMR扫描仪 ,冠状面常规薄层成像 ,原始图像经工作站处理 ,采用最大信号强度投影 (MIP)技术获得新图像。资深放射科医生对2组图像进行评估后行统计学分析。结果　采用非参数检验Raddit分析 ,未服用枸橼酸铁铵溶液组Raddit值的均数为 0 2 75 ,服用枸橼酸铁铵组Raddit值的均数为 0 72 5 ,计算U值为 6 0 37,P <0 0 0 1。结论　口服枸橼酸铁铵溶液可完全抑制胃及十二指肠内液体 ,排除其干扰 ,使MRCP更能清楚地显示胰胆管

The value of oral ferric ammonium citrate solution as a negative gastrointestinal contrast agent in magnetic resonance cholangiopancreatography

Objective To study the efficiency of oral ferric ammonium citrate solution as a negative gastrointestinal contrast agent on magnetic resonance cholangiopancreatography (MRCP). Methods Sixty subjects were divided into two groups at random. Routine MRCP were performed directly for one group, and routine MRCP were performed after oral ferric ammonium citrate solution for another gruop. Contrast effect was evaluated on the basis of signal intensity in the stomach and duodenum at MRCP. Results The mean Raddit score of control group (without oral ferric ammonium citrate solution) was 0.275, and that of oral ferric ammonium citrate group was 0.725 (P<0.001). Conclusion MRCP with oral ferric ammonium citrate solution shows the suppression of water signal from the gastrointestinal tract and makes more clear demonstration of the biliary and pancreatic ducts.