【摘要】 目的 评价常规小肠MR结合MR电影动态成像(Cine MRE)能否提高小肠克罗恩病(CD)相关病变的检出率。方法回顾性分析29例经临床证实的CD患者的MRI资料,扫描序列包括FIESTA、SS-FSE、LAVA C+等常规静态小肠MR序列以及Cine MRE序列。由2名影像科医生对图像进行双盲法分析,对比有或无Cine MRE对于CD相关病变(包括肠壁增厚、肠腔狭窄、梳状征、粘连及瘘管)的检出数量有无显著差别。结果 单独常规MR及增加Cine MRE后的病变检出数量分别为:肠壁增厚节段82/80,无统计学差异(P>0.05);肠腔狭窄52/43,有统计学差异(P<0.05);梳状征6/7,无统计学差异(P>0.05);粘连5/7,无统计学差异(P>0.05);瘘管2/2。结论 Cine MRE对于CD相关肠壁增厚、梳状征、粘连及瘘管诊断的意义不大,但其能较准确判断病变肠腔狭窄与否及显示小肠粘连的部位,必要时可以在常规小肠MR基础上加做Cine MRE。更多还原

【Abstract】 Objective To evaluate the detection rate of lesions of patients with Crohn’ s Disease(CD) tusing combining the conventional MR and Cine MRE(MR enterography).Methods MRI images of twenty-nine patients with CD confirmed by clinic were analyzed retrospectively.Scan sequences include coronal Cine MRE,and standard MR protocol(FIESTA,SS-FSE,LAVA C+).Two radiologists analyzed the images with double blind method to explored whether there were significant differences existing between having or having not Cine MRE on lesion detection rate(wall thickness,stenosis,comb sign,adhesions,fistulas).Results The number of lesions detected by standard MR combined with Cine MRE compared with standard MR alone were 82/80(P=0.16)for wall thickening,52/43(P=0.03)for stenosis,6/7(P=0.36)for the comb sign,5/7(P=0.66)for adhesions,2/2for fistulas respectivily.Conclusion It is meaningless to combine Cine MRE with standard MR in lesions detection in patients with CD,Cine images can accurately determine diseased bowel stenosis,and show the adhesive location.On the basis of standard MR,Cine MRE can be added in patients with CD when necessary.更多还原