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目的探讨MRI在小儿肠道疾病中的诊断价值。方法回顾性分析17例肠道疾病患儿的MRI资料,10例行MRI常规扫描,7例患儿行MR肠动描记法(MRE)扫描。结果图像分析:4例患儿由于肠梗阻未口服肠道对比剂,均明确显示梗阻部位及梗阻原因,病因诊断敏感性100%(4/4),但远端小肠、结肠扩张度不满意;5例耐受度差、1例未足量口服肠道对比剂患儿均有不同程度肠段扩张度不满意;7例口服足量肠道对比剂患儿肠管扩张度良好。MRI表现:肠内征象包括肠壁增厚10例、黏膜强化7例、跳跃征1例、管腔扩张6例、管腔狭窄9例、瘘管1例;肠外征象包括肠系膜血管水肿充血2例、肠周炎性渗出4例、脓肿2例、淋巴结增大3例、腹水5例。结论常规MRI扫描对小儿先天性肠道疾病诊断安全、有效,MRE检查仅适合较大年龄组患儿,多序列联合技术可对小儿肠道疾病诊断提供更多信息,为指导临床治疗方案的选择提供重要依据。
Objective To investigate the diagnostic value of MRI in children with intestinal diseases. Methods The MRI data of 17 patients with intestinal diseases were retrospectively analyzed. Ten patients underwent conventional MRI and seven patients underwent MR intestine mapping (MRE). Results Image analysis: Four cases of children with intestinal obstruction were not oral administration of contrast agents, were clearly obstructive site and obstruction, the diagnosis of etiology 100% (4/4), but the distal small intestine, colon expansion is not satisfied; 5 cases were poor tolerant, 1 case of inadequate oral administration of contrast agents in children with varying degrees of intestinal distention are not satisfied; 7 cases of oral administration of adequate intestinal contrast agent in children with good dilatation of the intestine. MRI manifestations: intestinal signs include 10 cases of intestinal wall thickening, mucosal enhancement in 7 cases, jumping sign in 1 case, lumen expansion in 6 cases, stenosis in 9 cases, fistula in 1 case; extraintestinal symptoms including mesenteric angioedema congestion in 2 cases 4 cases of inflammatory bowel exudate, 2 cases of abscess, 3 cases of lymph node enlargement and 5 cases of ascites. Conclusion Conventional MRI scan is safe and effective for the diagnosis of congenital intestinal diseases in children. MRE examination is only suitable for children of larger age group. The multi-sequence combined technique can provide more information for the diagnosis of intestinal diseases in children. Provide important basis.