| 陈佳莉,步军,吴禹,刘晓雯,梁治平,黄乐平.CTA观察右半结肠缺血性结肠炎与肠系膜上动脉钙化斑块的关系[J].中国医学影像技术,2019,35(3):395~399 |
| CTA观察右半结肠缺血性结肠炎与肠系膜上动脉钙化斑块的关系 |
| CTA observation on relationship of right collateral ischemic colitis and calcified plaque of superior mesenteric artery |
| 投稿时间：2018-07-23 修订日期：2018-12-03 |
| DOI：10.13929/j.1003-3289.201807164 |
| 中文关键词: 结肠炎,缺血性 肠系膜上动脉 钙化斑块 体层摄影术,X线计算机 |
| 英文关键词:colitis,ischemic mesenteric artery,superior calcified plaque tomography,X-ray computed |
| 基金项目:广东省省级科技计划项目（2015A020210004）。 |
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| 中文摘要: |
| 目的 探讨右半结肠缺血性结肠炎（IC）与肠系膜上动脉（SMA）钙化斑块的关系。方法 回顾性分析接受SMA CTA检查的605例患者，分为IC组（n=81）和非IC组（n=524），比较2组间SMA钙化斑块的检出率，分析IC组与非IC组SMA钙化斑块的数目、形态、部位、开口处和最窄处的狭窄程度，绘制ROC曲线评价狭窄程度诊断IC的效能。结果 IC组SMA钙化斑块的发生率（13/81，16.05%）高于非IC组（33/524，6.30%；P=0.002）。IC组钙化斑块数目多于非IC组（P=0.043）；2组间钙化斑块部位比较差异有统计学意义（P<0.001），IC组中，SMA钙化斑块多位于远段，非IC组多位于近段或中段；2组间斑块形态差异无统计学意义（P=0.421）。IC组与非IC组间SMA最窄处狭窄程度差异有统计学意义（P<0.001），其诊断IC的ROC曲线下面积为0.838（P<0.001），敏感度为76.92%（10/13），特异度为87.88%（29/33）。结论 当SMA钙化斑块数量较多，发生在远段，且其最窄段狭窄程度≥ 25%时，提示IC。 |
| 英文摘要: |
| Objective To explore the relationship of right collateral ischemic colitis (IC) and calcified plaque of superior mesenteric artery (SMA). Methods Totally 605 patients who underwent CTA of SMA were enrolled and analyzed retrospectively, including 81 patients in IC group and 524 patients in the non-IC group. The detection rate of SMA calcified plaque was compared between the 2 groups. The number, morphology and location of SMA calcified plaque, as well as the degree of stenosis of the opening and the narrowest part of SMA in IC group and the non-IC group were analyzed and compared, and the ROC curve was used to evaluate the efficacy of SMA stenosis degree in diagnosis of IC. Results The incidence of SMA calcified plaques in IC group (13/81, 16.05%) was higher than that in non-IC group (33/524, 6.30%;P=0.002). The number of SMA calcified plaques in IC group was more than that in the non-IC group (P=0.043). Significant difference in the location of calcified plaque was found between the 2 groups (P<0.001). SMA calcified plaques mostly located in the distal segment in IC group, while in the proximal or middle segment in non-IC group. There was no significant difference of plaque morphology between the 2 groups (P=0.421). Statistically significant difference of the narrowest stenosis degree was detected between the 2 groups (P<0.001). The AUC of the narrowest stenosis degree in diagnosis of IC was 0.838 (P<0.001), the sensitivity was 76.92% (10/13), and the specificity was 87.88% (29/33). Conclusion When there are more calcified plaques located in the distal segment of SMA and stenosis degree of the narrowest segment of SMA ≥ 25%, IC should be considered. |
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