CT小肠造影对炎症性肠病的诊断价值

Diagnostic Value of CT Enterography in Inflammatory Bowel Disease

目的探讨CT小肠造影(CTE)对炎症性肠病(IBD)的诊断价值。方法选择2015年1月-2017年12月间收治的80例拟诊为IBD的患者作为研究对象,所有患者均经CTE检查;以临床表现、肠镜和病理组织学结果等检查综合判断为金标准,评估CTE检查IBD影像学表现及诊断结果,计算灵敏度、特异度、准确率、阴性预测值和阳性预测值。结果 CTE诊断IBD53例,非IBD27例,灵敏度83.02%、特异度77.78%、准确率81.25%、阳性预测值88.00%、阴性预测值70.00%;CTE诊断克罗恩病灵敏度83.78%、特异度88.37%、准确率86.25%、阳性预测值86.11%、阴性预测值86.36%;CTE诊断溃疡性结肠炎灵敏度81.25%、特异度98.44%、准确率95.00%、阳性预测值92.86%、阴性预测值95.45%。结论 CTE是有效诊断IBD的方法,也有助于鉴别诊断克罗恩病和溃疡性结肠炎。

Objective To explore the diagnostic value of CT enterography(CTE)in the inflammatory bowel disease(IBD).Methods 80 cases of patients with probable IBD admitted from January 2015 to December 2017 were selected for the study and were examined by CTE.The comprehensive judgments of clinical manifestations,colonoscopy and histopathological findings were taken as gold standards,and the imaging findings and diagnostic results of CTE were evaluated in the diagnosis of IBD,and the sensitivity,specificity,accuracy,negative predictive value and positive predictive value were calculated.Results CTE showed there were 53 cases of IBD and 27 cases of non-IBD,and the sensitivity,specificity,accuracy,positive predictive value and negative predictive value were 83.02%,77.78%,81.25%,88.00%and 70.00%respectively.The sensitivity,specificity,accuracy,positive predictive value and negative predictive value of CTE were 83.78%,88.37%,86.25%,86.11%and 86.36%respectively in diagnosis of Crohn’s disease,and were 81.25%,98.44%,95.00%,92.86%and 95.45%respectively in diagnosis of ulcerative colitis.Conclusion CTE is an effective method for diagnosing IBD,and it also helps in the differential diagnosis of Crohn’s disease and ulcerative colitis.