MRI诊断对小肠疾病的价值及其与小肠钡灌肠的比较

目的:探讨MRI对小肠疾病的诊断价值。方法:28例患者行小肠MRI检查,其中19例同期行小肠钡灌肠检查。所有24例小肠病变患者中13例经手术证实,1例血管性病变经DSA造影证实,另10例均结合临床病史作出诊断,并对MRI各种检查序列进行了比较。结果:在显示肠腔狭窄、肠外压迹方面,MRI与小肠钡灌肠的差异没有显著性意义(P>0．05)。在显示肠壁肿块和增厚方面,MR优于小肠钡灌肠检查(P<0．05和P<0．01)。MRI各序列在显示肠壁异常改变、肠腔狭窄、肠外压迹和粘膜异常方面,差异存在显著性意义(P<0．05)。结论:MRI能更好地显示小肠病变时肠壁及系膜改变,弥补了小肠钡灌肠检查的不足。

Diagnostic Value of MR Imaging on the Small Bowel Diseases:a Preliminary Report

Objective: The purpose of this study was to evaluate the diagnostic value of the MR imaging of the small bowel disease. Methods:28 patients underwent MRI examination of small bowel. Of them, 19 patients had small-bowel en teroclysis (SBE) and 10 patients had CT scans. Of these 24 patients with small bowel disease, 11 cases had surgery and proved by pathology, 1 case was diagnosed by DSA,the others were diagnosed by clinical history and symptoms only. The results of these 3 modalities as well as different MR sequences were compared. Results: There were no significant difference between MRI and SBE in showing bowel constriction, extra-luminal compression (P>0. 05) , MRI was superior to SBE in showing mass and mural thickening (P<0. 005). There is no significant difference between different sequences of MRI in showing mural abnormalities,bowel constriction,extra-luminal compression and mucosal lesion. Conclusion:Bowel wall and mesenteric abnormalities can be better revealed and the shortage of SBE can be made up by MRI.