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螺旋CT多平面重建在儿童不典型阑尾炎中的诊断应用 被引量:4

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摘要 目的探讨多层螺旋CT多平面重建(multiplanar reconstruction,MPR)在儿童不典型阑尾炎中的诊断价值。方法回顾性分析临床疑诊为阑尾炎儿童32例,其中手术和病理证实为阑尾炎者22例,所有患儿用Reformat软件行多平面重建及曲面重建(curved planar reformation,CPR),获得常规扫描及MPR/CPR重建所得阑尾图像,分析图像特点,得出诊断。通过与病理对照,得到常规扫描法和MPR/CPR法对急性阑尾炎的诊断符合率、灵敏度、特异度、阳性预测值、阴性预测值,并进行假设检验。结果 MPR/CPR法诊断急性阑尾炎的符合率84.4%、灵敏度86.4%、特异度80.0%、阳性预测值90.5%、阴性预测值72.7%。常规扫描法相应值为46.9%、54.5%、30.0%、63.2%、23.1%。结论不典型的儿童阑尾炎通过螺旋CT多平面重建,能直观地显示阑尾全貌、周围组织改变、合并症及阑尾位置、尖端指向,可显著提高急性阑尾炎的术前诊断准确率,降低了阑尾炎的误诊、漏诊率。
出处 《浙江实用医学》 2013年第1期50-52,64,共4页 Zhejiang Practical Medicine
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参考文献4

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