多排螺旋CT在急性、亚急性缺血性肠炎诊断及分期中的应用价值

摘要

目的：探讨多排螺旋CT在急性、亚急性缺血性肠炎诊断及分期中的应用价值。方法回顾性分析33例经结肠镜检查证实的缺血性肠炎患者的CT检查资料，其中急性组16例、亚急性组17例，对比两组的影像学特征。以结肠镜检查为金标准，计算CT对急性、亚急性缺血性肠炎的诊断符合率。结果缺血性肠炎主要见于左半结肠，CT显示两组病例在“拇纹”征、肠壁增厚、肠壁分层、周围渗出及黏膜下层对比强化幅度方面，具有显著的统计学差异（P<0.05）。CT对急性及亚急性缺血性肠炎的诊断符合率分别为87.50%和70.59%。结论多排螺旋CT在诊断急性及亚急性缺血性肠炎中具有较高的应用价值，且对于其分期有较大帮助。%Objective To evaluate the effectiveness of application of multi-slice spiral CT (MSCT) in diagnosis and staging of the acute and sub-acute ischemic colitis (IC). Methods The CT imaging data of 33 colonoscopy-conifrmed IC patients (Acute Group:16 patients;Sub-Acute Group:17 patients) were retrospectively analyzed. Having been taken colonoscopy as the golden standard, the CT ifndings of both groups were compared so as to calculate the diagnostic accordance rate of CT in diagnosis of acute and sub-acute IC. Results The lesion of IC was mainly seen in the left hemi colon. The CT images showed statistically signiifcant differences (P<0.05) between two groups in the thumb line sign, thickening of intestinal wall, layering of intestinal wall, exudative changes around the intestine and the enhancement degree. The diagnostic accordance rate of CT in diagnosis of acute and sub-acute IC was 87.50%and 70.59%respectively. Conclusion MSCT manifested its effectiveness in diagnosis of acute and sub-acute IC, which was also helpful for staging of IC.